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View categoryWhether you build AI platforms, fintech applications, healthcare solutions, SaaS products, or enterprise software, maintenance support is required. Throughout the platform’s lifespan, operating system changes, security threats evolve, and performance issues appear without warning. Our mobile app maintenance services continuously monitor system health, optimize infrastructure, and improve performance. This is a great move to drive measurable business expansion.
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Maintenance keeps your app secure, compatible, and running after launch. Support handles it when something breaks anyway, like a crash, a bad review, or a feature that stops working overnight. If you skip any one, your app starts losing users before you even notice.
Usually, Apple and Google ship 6–8 major OS updates every year. App Store review policies shift quarterly and new vulnerabilities surface daily. None of this waits for your release schedule. If an app running fine today can fail within 48 hours of an update you didn't plan for.
Fixes bugs and crashes fast, before they cost you users.
Keeps you compliant with every new OS and API change.
Improves speed and features so the app keeps earning its place.
Catches problems before users ever run into them.
$33,333
Average cost per minute of a high-impact outage, based on a median $2M-per-hour figure across 1,700+ surveyed engineering teams. A short outage can wipe out a year's maintenance budget in an afternoon.
Source: New Relic, 2025 Observability Forecast53%
of users uninstall an app after a serious crash, freeze, or error. It's an older study, but the behavior it describes hasn't changed. However, users still have zero patience for a broken app.
Source: Dimensional Research, "Failing to Meet Mobile App User Expectations," 201515–20%
of your original build cost is the range most development firms recommend budgeting annually for maintenance. A $200K app typically runs $30K–$40K/year to stay secure, compliant, and competitive.
Source: Industry consensus across app development firmsThis is the timeline every app owner needs to see before deciding whether maintenance is worth the investment. It is based on patterns we observed across 2,900+ apps over 15 years. These are not worst-case scenarios, but typical ones.
It is the initial stage where everything about the app works well. Your app passes App Store review, and users are downloading it. At this time, the performance is optimal, security libraries are current, and OS compatibility is verified. In short, you have a clean, functioning product and a full user base ahead of you.
Maintenance cost at this stage: $0. Now is the time to set up monitoring so you are never scrambling later.
Healthy — No action needed
Apple or Google ships a major OS update and third-party libraries have pending security patches.
Your app still works mostly, but two or three features begin behaving inconsistently on newer devices. The crash rate edges up from 0.3% to 1.2%, and a known CVE is filed against one of your core dependencies.
Proactive fix cost at this stage: $200–$500. Emergency fix cost if left unaddressed: $3,000–$8,000.
Warning — Proactive fixes needed
App Store rating drops and users start leaving two-star reviews about crashes and slow load times.
The deprecated API from the Month 3 update now causes a broken feature for 15% of your iOS users. Performance has degraded as database queries grew inefficient at scale. Your SSL certificate expires in three weeks. Nobody has noticed all these things until a user emails you about HTTPS errors.
Your App Store rating has fallen from 4.2 to 3.1. Every 0.1-point drop below 4.0 correlates with a 15% decline in organic downloads.
Recovery cost at this stage: $5,000–$15,000.
Critical — Emergency intervention likely
SSL expires, an App Store compliance warning is issued, and an unpatched CVE is actively exploited.
Your app is generating HTTPS errors for users. Apple has flagged your privacy manifest as non-compliant with a 30-day removal warning. The security vulnerability is being actively exploited, so user data may be at risk. You are now paying emergency developer rates of 3–5x the normal hourly rate.
Legal review for a data breach starts at $10,000. Emergency developers bill at premium rates because you have no leverage.
Emergency — Revenue and data at risk
App gets delisted from the App Store and a security breach notification sent to users. This can seriously damage reputation permanently, which takes months to years to recover. Recovery costs $40,000–$120,000 in emergency redevelopment, legal review, and customer notification campaigns. Businesses have to spend the next quarter explaining this to stakeholders instead of shipping new features.
The question you will ask at this point: “Why did we not just pay $800 a month for someone to watch this?” There is no good answer, only a preventable one.
Terminal — Prevention is always cheaper
Every plan at Dev Technosys covers core application support services. From day-to-day bug fixes to long-term platform upgrades, each service below is handled by the same team. Our mobile app maintenance company adds dedicated developers, AI model maintenance, SLA guarantees, and 24/7 support.
Critical bugs, UI glitches, and functional errors are resolved through hands-on mobile app troubleshooting with our highly skilled developers. It is an essential part of our app bug fixing services, with SLA-backed response times. P1 critical bugs are thoroughly fixed within 2 to 4 hours.
P1: 2–4 hours
We continuously monitor app performance across load time, memory, and battery use. We use Firebase Performance, New Relic, and Datadog. Ongoing app performance optimization and mobile app optimization fixes issues before users notice. It also includes backed-by app analytics and app scalability services as your user base grows.
Target: <2s load
Our services include full testing and operating system compatibility updates for every major iOS and Android release. We also offer ongoing OS version compatibility checks and pre-release beta testing. This helps businesses avoid scrambling on launch day. This covers both our Android and iOS app maintenance services under one plan.
6–8 updates/year
We offer support through app security updates and continuous app security monitoring. It involves OWASP Top 10 monitoring, SSL certificate management, encryption updates, and scheduled penetration testing. We usually apply security patches within 24–72 hours of discovery.
24–72hr patch time
Our skilled professionals track every Apple and Google policy change proactively. This is really important to handle privacy manifest, data declaration, and permission deadlines. All of this is done before removal notices arrive.
4–6 changes/year
We also provide businesses with analytics-driven app feature enhancements and UI/UX improvements delivered in sprint cycles. These cycles are aligned with your product roadmap. Also regular mobile app updates and app version upgrades when you need broader app enhancement services. No feature request is ignored in a ticket queue.
Sprint delivery
Our reliable mobile app maintenance company delivers full API maintenance services and API integration maintenance. It includes dependable server maintenance, database optimization, and database management. Also, we serve third-party API updates for tools like Stripe, Firebase, and Google Maps. We also provide cloud app maintenance for applications hosted on AWS, Azure, and Google Cloud.
99.9% uptime SLA
Model drift detection, retraining pipelines, and prompt updates for AI-native apps are included in our maintenance and support services. It is a new integration for 2026-2027 models. Even this is essential for apps using LLMs, recommendation engines, or CV models.
2026 essential
Most app owners sign a maintenance contract without asking the important questions that matter. Six months later, they discover their partner is reacting to problems they already knew about. They are also charged emergency rates for issues a proper monitoring setup would have caught. These 7 questions take 10 minutes to ask and save you months of frustration. Each question should be ticked as you evaluate any provider, including us.
A critical production bug and a cosmetic UI glitch should not sit in the same queue. Any serious partner has tiered response times in writing, not a fake “we respond quickly” promise.
Ask them to send you the SLA document before proceeding with maintenance. If they do not provide anything in writing, the conversation is over.
Red flag if: no written SLA tiers exist
Many agencies will only maintain their own code. If your app was built by another company, ask whether they can take over the project without any difficulty.
A reliable partner should first review the codebase and create a maintenance plan before starting any work.
Red flag if: they refuse or charge large onboarding fees
“When something breaks” is the wrong answer. You want a defined schedule for dependency review, OWASP scanning, and patching. This is not acceptable in reactive scrambling after a CVE is already public.
The answer you should get is: monthly dependency reviews and critical CVE patches within 72 hours, regardless of sprint cycles.
Acceptable: monthly reviews + 72-hour critical patch SLA
Real maintenance teams test against beta OS releases weeks before Apple and Google ship them publicly. Reactive teams scramble after launch day, and your users feel it first.
Look for: beta testing program participation mentioned specifically
These aspects include crash reporting, performance dashboards, API latency alerts, and uptime monitoring. This monitoring should be done from the beginning. They can’t start anything unless they can see what’s happening in real time.
They must know what monitoring tools they use, like Firebase Crashlytics, Sentry, New Relic, Datadog.
Red flag if: monitoring is listed as extra or optional
You should own everything, including source code, repository access, App Store accounts, and analytics dashboards. Maintenance should never mean being held hostage to your own app by a departing vendor.
Red flag if: any hesitation or conditions on code ownership
A confident maintenance partner has a clean exit plan related to documentation, knowledge transfer, and transition support. Reluctance to discuss this signals they are banking on your dependency, not your satisfaction.
Look for: a written handoff protocol included in the contract
Most maintenance agencies list security as an add-on. As a reliable enterprise mobile app maintenance company, we include it in every development strategy. It is because a single unpatched vulnerability costs more to recover from than years of prevention. Security monitoring is not optional; it is the minimum standard. Here is exactly what we monitor and how often.
We actively monitor and patch all OWASP Top 10 mobile vulnerabilities in every maintenance plan. It involves insecure data storage, improper authentication, insufficient cryptography, and insecure API communication. These are the vulnerabilities attackers target first, and they are the ones most commonly left unaddressed in unmaintained apps.
We monitor SSL certificates across all client apps and manage renewals 30 days before expiry, before users ever see an error. Expired certificates are one of the most avoidable causes of app downtime and user trust loss. Then they appear in our app health audits more often than any other single issue.
Apple and Google both update their security requirements annually. Missing a deadline leads to automatic app removal, not a warning. We track every security deadline across all client apps. It helps us handle privacy manifest updates, data declaration changes, and permission requirement shifts before removal notices arrive.
Our maintenance team tracks all industry compliance requirements and performs any necessary updates. It ensures your app stays up to date and fully compliant. Below is the list of compliance requirements we manage and how often we review them.
| Industry | Compliance Standard | What We Monitor | Monitoring Frequency | Business Risk If Missed |
|---|---|---|---|---|
| Healthcare Apps | HIPAA | Data encryption, patient privacy, access controls, audit logs, secure data storage | Continuous | Regulatory penalties, patient data breaches, loss of trust |
| Fintech & Payment Apps | PCI DSS | Payment security, tokenization, fraud monitoring, API security, vulnerability scans | Quarterly & After Major Updates | Payment processing issues, financial penalties, security risks |
| European User Apps | GDPR | User consent, data retention, deletion requests, privacy controls | Whenever regulations or app features change | Fines of up to 4% of global annual revenue |
| Apps for Children | COPPA | Parental consent, child data collection, privacy notices | Continuous | Legal penalties and potential app store violations |
| Education Apps | FERPA | Student record protection, user permissions, data access controls | Periodic Reviews | Compliance violations and institutional risks |
| All Mobile Apps | Google Play & App Store Policies | Privacy manifests, SDK compliance, permission declarations, policy updates | Before Every Store Submission & Major Policy Update | App rejection, delayed releases, or app removal |
| Cloud-Hosted Apps | AWS / Azure / GCP Security Best Practices | Infrastructure security, backups, access management, monitoring, patching | Continuous | Downtime, security vulnerabilities, and cloud misconfigurations |
Dev Technosys has successfully completed a broad spectrum of mobile application maintenance projects across various industries. Each project serves as a testament to our proficiency in app performance optimization, issue resolution, security enhancement, and long term application support services. These maintained applications are a proof of our skill to stabilize, enhance, and extend the lifecycle of mobile apps. Our mobile app maintenance services allow businesses to guarantee continuous functionality, increased user satisfaction, and sustained.
No hidden costs. No lock-in clauses. All plans start with a free app health audit before you commit to anything. This is where most clients start comparing the cost of mobile app maintenance services across providers. Choose a plan and decide which mobile app maintenance company fits their budget and their app's complexity.
Starter — Basic Plan
Simple apps · Under 10K MAU · iOS or Android
$500 – $1,500 per month · or 15–20% of dev cost/year
Most Popular
Standard Plan
Mid apps · 10K–100K MAU · iOS + Android
$1,500 – $4,000 per month · SLA-backed response times
Full Service — Enterprise Plan
Complex apps · 100K+ MAU · All platforms
$4,000 – $10,000+ per month · Dedicated team + SLA guarantee
All plans include a free app health audit and full mobile app maintenance and support services regardless of tier. Therefore, you're never paying extra for basic application maintenance services. Custom pricing available for regulated or high-complexity apps. As an enterprise mobile app maintenance company, we also offer custom mobile app maintenance solutions for regulated industries. We also provide round-the-clock coverage available through our 24/7 mobile app support services line.
Request a quoteEvery task has a defined SLA with any mobile app maintenance company worth hiring. You always know when your issue will be resolved, not a vague “as soon as possible.”
| Task Type | Priority | Initial Response | Resolution Time | Available In |
|---|---|---|---|---|
| Critical Bug (App Down / Revenue Blocked) | P1 Critical | Within 30 minutes | 2–4 hours | All Maintenance Plans |
| Major Feature Not Working | P2 High | Within 2 hours | 24–48 hours | All Maintenance Plans |
| Security Vulnerability Patch | P1 Critical | Within 1 hour | 24–72 hours | Standard & Enterprise |
| Android & iOS Compatibility Update | P3 Planned | Pre-release testing | 3–7 days | All Maintenance Plans |
| App Store & Google Play Compliance Update | P2 High | Proactive monitoring | 3–5 business days | Standard & Enterprise |
| Feature Enhancement Request | P4 Enhancement | Sprint planning | 2–6 weeks | Standard & Enterprise |
| Security & Compliance Audit | P3 Standard | Scheduled | 5–7 business days | Enterprise Only |
Platforms
We maintain apps built on any platform or framework — including apps not originally built by Dev Technosys. Our onboarding for third-party apps includes a full code audit, architecture documentation, and technical debt assessment before we touch a single line of code. We sign an NDA before reviewing anything.
If your current maintenance partner is underperforming, we take over — with full documentation of everything we find.
Industries
Each industry has its own compliance standards, update cycles, and maintenance priorities. We know all of them and apply the right framework from day one.
HIPAA compliance monitoring, HL7 FHIR API updates, telemedicine platform stability, and PHI data security.
PCI DSS Level 1–4 monitoring, payment gateway updates, fraud detection model maintenance.
Peak traffic scaling, payment integration updates, catalog sync, checkout performance optimization.
Real-time GPS accuracy, driver and customer app sync, geolocation API updates, surge traffic handling.
LMS integration updates, WCAG 2.1 accessibility compliance, content delivery optimization.
SSO and identity management, ERP integration updates, internal app security audits, legacy compatibility.
Why Dev Technosys
Every mobile application maintenance company claims to be reliable. Clients choose us over other mobile app support and maintenance companies and stay for years, not months. It comes down to treating app support and maintenance as a full mobile application maintenance partnership. It is backed by mobile app support services and continuous app health monitoring, not a one-off fix.
The same developer handles your app every time. They know your codebase, your architecture, and your history. This leads to faster fixes and fewer repeated explanations month after month.
If your named developer ever leaves our team, we give 30 days' notice. Also, we introduce a replacement who shadows the work before handover.
We assess performance, security vulnerabilities, App Store compliance status, and technical debt before you sign anything. The report is yours whether you work with us or not, so no commitment required.
The audit covers four areas: performance metrics, security vulnerabilities, compliance status, and technical debt. Delivered in 5–7 business days.
Every month you receive a written report showing what was fixed, what it cost, what is coming next, and your app's current health score. No surprises. No hidden costs. No chasing us for it.
Formatted to share with your board or investors without editing.
We sign a Non-Disclosure Agreement before reviewing any code, architecture documentation, or proprietary system. The NDA is mutual and covers source code, data structures, and business logic.
Sent within 24 hours of your first enquiry. You review code with us, not before us.
Built by another team? We audit it, document everything we find. It includes what the previous team did not tell you about. Then we begin maintaining it with a clean handover record.
We have taken over apps from 40+ different agencies. Onboarding takes 1–2 weeks, not months.
Rated across 200+ verified client reviews on Clutch — the world's leading B2B technology review platform.
Process
From your first consultation to ongoing mobile app maintenance, here's how we keep your application secure, optimized, and future-ready.
We analyze performance metrics, security vulnerabilities, compliance status, and technical debt — all at zero cost before any commitment.
A plan built specifically for your app based on audit findings, your team, and business goals. Not a generic package applied to everyone.
A named developer and project manager are assigned to your app. You know their names before the contract is signed. Same people, every month.
24/7 automated monitoring goes live within 48 hours of signing. Issues are detected and resolved before your users notice them wherever possible.
Delivered on the first business day of every month. What was fixed, what it cost, what is next, and your app's health score. No chasing required.
Every quarter we align maintenance priorities with your roadmap. A 45-minute call with the agenda sent five days in advance. No surprises on either side.
FAQs
The average mobile app maintenance and support service cost is 15-20% of the overall development cost. For example, if the mobile app costs $1,20,000, the maintenance cost will be $18,000-$24,000 annually. At Dev Technosys, we offer flexible maintenance plans tailored to your application's size, business goals, and support requirements.
Mobile app maintenance and support services we offer include bug fixing and crash resolution. This is done with SLA-backed response times and iOS and Android OS compatibility updates. The maintenance also involves pre-release beta testing, security patches, and OWASP Top 10 monitoring. Compliance management, performance monitoring and optimization, backend maintenance, crash reporting, and so on are also added.
First, understand that app maintenance is proactive, and app support is reactive. That’s why maintenance covers OS updates, security patches, compliance management, and performance improvements. It prevents issues before users notice them. Whereas support handles crashes, user-reported bugs, and service requests. But the difference is that it notices the issue after it occurs.
Yes, we also maintain applications that are not built by us. Maintaining apps developed by other teams, agencies, and freelancers is our most common and regular engagement. Our experts identify existing issues and assess technical debt before proposing a plan. Our structured onboarding process ensures a smooth transition with minimal disruption to your business operations.
Yes, Dev Technosys absolutely signs a Non-Disclosure Agreement (NDA). This agreement is signed before accessing your source code, infrastructure, business documents, or intellectual property. By signing an NDA, we assure our clients that their application, data, and business information remain completely confidential. We prioritize your privacy and intellectual property from day one.
Yes, because there is a chance that the app working fine today might fail within 48 hours. It may be because of a new iOS or Android release without proactive maintenance. Both Apple and Google release 6 to 8 major updates every year. According to Pixalate, Google removed 1.1 million apps in Q2 2024 — 74% were flagged as abandoned. It is primarily due to no updates in over two years.
Dev Technosys typically responds to P1 critical bugs within 30 minutes and resolves them within 2–4 hours. These are responsible for causing crashes or revenue-blocking failures. Standard P2 issues receive a response within 2 hours and resolution within 24–48 hours. All response and resolution times are written into SLA agreements and are not subject to sprint cycles or ticket backlogs.
At Dev Technosys, the security and compliance standards maintained include:
Maintaining security and compliance is our standard upgrade; it is not sold separately.
Our expert developers monitor Android and iOS releases continuously. It is necessary to ensure your platform stays compatible with the latest operating system versions. We also perform compatibility testing, update APIs and SDKs, resolve deprecated features, and conduct pre-release beta testing. This essentially identifies and fixes the issues before updates reach your users.
Yes, we can enhance your app by adding new features along with regular maintenance. We integrate every new feature through careful planning, development, and testing. Our developers guarantee seamless integration while maintaining your app's performance, security, and reliability. By integrating new features, we make your application evolve with changing user preferences and market trends.
Explore More
Explore related service pages, in-depth guides, and expert insights to plan, budget, and scale your mobile app maintenance.
Discover how our clients have achieved success, watch their authentic video testimonials and see the results for yourself
“Dev Technosys delivered a secure, user-friendly medical app for us. Their technical expertise, clear communication, and commitment to healthcare compliance truly exceeded our expectations.”
CEO
“Dev Technosys transformed our business idea into a powerful mobile app. Their strategic approach, reliability, and on-time delivery helped us scale smoothly and confidently.”
Managing Director
“Working with Dev Technosys felt like a true partnership. Their care, dedication, and understanding of our healthcare goals made the entire journey smooth and rewarding.”
CEO, Papaya
“Dev Technosys brought our carpet information project to life with clarity and precision. Their professionalism, responsiveness, and commitment to quality made the collaboration truly valuable.”
Director - Satar Carpet GmbH
“Dev Technosys played a key role in shaping our project into a viable business. Their problem-solving mindset, technical strength, and consistent support delivered real results.”
Founder at Best.AZ
“Dev Technosys handled our healthcare project with care and precision. Their thoughtful approach, strong collaboration, and attention to detail gave us confidence at every stage.”
CEO - InspireWebApp
204 Reviews on Clutch
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