App Maintenance & Support · Mumbai
App maintenance and support that keeps your app fast, secure and up to date.
We look after Android, iOS and web apps after launch, including apps built by other developers: fixing bugs, keeping up with new OS versions and store policies, patching security issues, monitoring performance and adding the features your users ask for. One in-house team in Andheri East, with agreed response times.
What is app maintenance and support?
App maintenance and support is the ongoing work of keeping a mobile or web app reliable after launch. It includes fixing bugs, updating the app for new Android and iOS versions and devices, applying security patches, updating libraries and APIs, monitoring crashes and performance, keeping up with App Store and Google Play policies, and adding small improvements.
What does ABC Designs’ app maintenance service include?
ABC Designs, a digital agency in Andheri East, Mumbai founded in 2012, provides maintenance and support for Android, iOS, Flutter and web apps, including apps built by other teams: health audits, bug fixing, OS and device compatibility updates, security patching, performance monitoring, store policy compliance, backups and feature enhancements, on monthly plans with agreed response times and a monthly report.
01 — Diagnosis
What happens when an app isn’t maintained?
Apps don’t stand still: the phones, operating systems, app stores and services around them change constantly. These six problems show up in almost every neglected app we take over.
Breaks after OS updates
What happens: features stop working or layouts break after a new Android or iOS release.
How we prevent it: Testing on beta OS versions and shipping compatibility updates before users notice.
Store warnings and removals
What happens: Google Play or Apple flag the app for outdated SDKs, missing privacy details or policy issues.
How we prevent it: Tracking store requirement deadlines and policy changes, and updating ahead of them.
Security vulnerabilities
What happens: outdated libraries with known security flaws put user data at risk.
How we prevent it: Dependency scanning, regular patching and periodic security reviews.
Rising crashes
What happens: ratings drop as crashes creep up after each change.
How we prevent it: Crash monitoring with alerts and root-cause fixes, prioritised by user impact.
Broken integrations
What happens: payment, SMS, maps or login services change their APIs and stop working.
How we prevent it: Monitoring third-party APIs and updating before old versions are switched off.
The developer has disappeared
What happens: no documentation, no account access and nobody who knows the code.
How we prevent it: A code audit, documentation and secure transfer of every account into your name.
02 — What’s included
Our app maintenance and support services
Ten services, combined into one monthly plan sized to your app. We support Android, iOS, Flutter and web apps, whether we built them or not.
App health audit
01Start with a clear picture of your app’s code, security and stability.
- Code and architecture review
- Security and dependency scan
- Crash, performance and review analysis
You get: Health report + priority fix list
Bug fixing (corrective)
02Fix what’s broken, properly, without breaking something else.
- Triage by severity
- Root-cause fixes
- Regression testing
You get: Stable, tested releases
OS & device updates (adaptive)
03Keep the app working as Android, iOS and devices change.
- New Android and iOS versions
- New screen sizes and devices
- Store SDK and policy requirements
You get: App ready for each OS release
Improvements (perfective)
04Make the app better month by month, based on real usage.
- UX fixes from user feedback
- Small feature additions
- Speed improvements
You get: Monthly improvement releases
Security updates & monitoring
05Protect your users’ data and your reputation.
- Library and dependency patches
- Vulnerability checks
- Login, encryption and data review
You get: Security patch log
Performance monitoring
06Spot problems before they reach your reviews.
- Crash and freeze monitoring
- App start and screen-load times
- API and server performance
You get: Monthly performance report
Server, hosting & backups
07Look after the back end your app depends on.
- Server and database maintenance
- Automated backups
- Uptime monitoring
You get: Monitored, backed-up back end
AWS cloud hosting →Feature enhancements & upgrades
08Add the features your users and business need next.
- New modules and integrations
- Framework upgrades
- Redesign of key flows
You get: Planned roadmap releases
App takeover
09Move an app from another agency or freelancer to us safely.
- Secure transfer of code and accounts
- Documentation of what exists
- Stabilisation plan
You get: Documented app under our care
Testing & quality assurance
10Every release tested before it reaches users.
- Regression tests
- Device and OS matrix
- Store-readiness checks
You get: Test report with every release
03 — Types of maintenance
The four types of app maintenance, explained
Corrective maintenance fixes what’s broken, adaptive keeps up with change, perfective makes the app better and preventive stops problems before users see them. A good maintenance plan covers all four.
| Corrective | Adaptive | Perfective | Preventive | |
|---|---|---|---|---|
| What it is | Fixing bugs and errors that users report or monitoring catches | Updating for new OS versions, devices, store rules and third-party APIs | Improving features, UX and speed based on feedback | Security patches, dependency updates, code clean-up and monitoring |
| Example | A checkout button that fails on some phones | Updating for the latest Android or iOS release | Simplifying sign-up after users drop off | Patching a vulnerable library before it is exploited |
| When | As issues arise | Around OS releases and store deadlines | Planned every month | Continuously |
| Risk if skipped | Bad reviews and lost sales | App breaks or becomes unavailable in stores | App falls behind competitors | Data breaches and sudden outages |
These four categories come from the software maintenance standard ISO/IEC/IEEE 14764. Also see Android and iOS app development.
04 — Our process
How app support works, in six steps
The same routine every month, so you always know what we’re working on and what’s next.
-
Step 1 · First 2–4 weeks
Assess
- Access and account handover
- Code, security and crash audit
- Baseline metrics recorded
Deliverable: Health report + support plan
-
Step 2 · Continuous
Monitor
- Crash and freeze alerts
- Uptime and API monitoring
- Store review tracking
Deliverable: Live monitoring dashboard
-
Step 3 · As needed
Fix & optimise
- Issues triaged by severity
- Root-cause fixes
- Regression testing
Deliverable: Tested fixes
-
Step 4 · Monthly + urgent
Secure
- Dependency and library updates
- Vulnerability checks
- Urgent patches when needed
Deliverable: Security patch log
-
Step 5 · Monthly
Improve
- OS and store updates
- Small features and UX fixes
- Performance improvements
Deliverable: Release notes
-
Step 6 · Monthly
Support & report
- Monthly report
- Review call with you
- Roadmap for next month
Deliverable: Monthly report + call
05 — Response times
How quickly will you fix issues?
Response times depend on how serious the issue is and the plan you choose: critical issues get the fastest response, minor issues go into the next scheduled release. Exact times are written into your plan’s service-level agreement (SLA).
App down or data at risk. The app won’t open, payments are failing, or there is a security issue. Worked on first, until resolved.
Key feature broken. A core feature fails for many users. Fixed and released as a priority update.
Minor bugs and changes. Small bugs, content changes and improvements, scheduled into the next regular release.
Response and resolution times are agreed in your SLA. Bars show relative priority.
06 — Reporting
How we measure your app’s health
Every month you get a report on these numbers, so you can see the app getting healthier, not just a list of tickets closed.
| Metric | Why it matters | Source |
|---|---|---|
| Crash-free users | The share of users who never hit a crash. | Firebase Crashlytics |
| Uptime | Whether the app and its back end are available when users need them. | Server monitoring |
| Response & resolution vs SLA | Whether issues are picked up and fixed within the agreed times. | Support desk |
| Open bugs by severity | The backlog, and whether it is shrinking. | Issue tracker |
| OS & store compliance | Ready for the latest Android, iOS and store requirements. | Play Console / App Store Connect |
| Security patch status | Libraries with known vulnerabilities, and how quickly they are patched. | Dependency scans |
| Store rating trend | Whether users are noticing the improvements. | Play Console / App Store Connect |
07 — Who our plans are for
What we prioritise depends on your app and your business
Apps built by another agency
The original developer has moved on and nobody knows the code.
FOCUS · Takeover audit, documentation, stabilisation
Startups after launch
You need to keep shipping without hiring a full team.
FOCUS · Fast fixes, monthly feature hours
E-commerce & D2C
Sale days bring traffic spikes and zero tolerance for downtime.
FOCUS · Uptime, payment checks, load readiness
Healthcare & fintech
Security and compliance can’t slip.
FOCUS · Security patching, audit logs, data protection
Enterprise & internal apps
Staff depend on the app every working day.
FOCUS · Stability, SSO, integration monitoring
Web + mobile on one back end
A change in one place can break the other.
FOCUS · Shared API monitoring, coordinated releases
08 — Our standards
How we work: what we always do, and what we never do
We keep your app aligned with Google Play’s target API requirements, Apple’s upcoming requirements and the OWASP mobile security standard.
We always
- Keep all code, accounts and credentials in your name
- Test every fix before it reaches users
- Record every change in release notes
- Treat security issues as top priority
- Send you a report every month
We never
- Push untested changes to live users
- Make major changes without your approval
- Hide issues or downtime from you
- Tie you into a contract with no way out
- Hand your app to an outside team without telling you
09 — Pricing
How much does app maintenance cost?
App maintenance cost depends on the app’s size and complexity, how many platforms it runs on, how many hours of improvements you want each month and the response times you need. Most clients start with a free app health check, then receive a plan sized to their app.
App health audit
A full picture of your app’s risks before you commit to a plan.
- Code and architecture review
- Security and dependency scan
- Crash and review analysis
- Priority fix list + call
Essential support
Keep the app stable, secure and compatible.
- Bug fixes and OS updates
- Security patches
- Crash and uptime monitoring
- Monthly report
Support + growth
For apps that need to keep improving as well as running.
- Everything in Essential
- Monthly feature hours
- Priority response times
- Quarterly roadmap review
What changes the price: platforms (Android, iOS, web) · app size and complexity · current code quality · hosting and back end · response times · monthly improvement hours.
10 — Tools
The tools we use to look after your app
Monitoring and release tools that give you and us the same view of your app’s health.
11 — FAQ
App maintenance and support: frequently asked questions
Worried about your app? Get a free app health check and we’ll tell you what needs attention first.
What is app maintenance and support?
App maintenance and support is the ongoing work that keeps an app reliable after launch: bug fixes, updates for new OS versions and devices, security patches, monitoring, store policy compliance and small improvements.
Why does my app need maintenance after launch?
Apple and Google release new OS versions every year and change store rules regularly, libraries get security updates, and third-party services change their APIs. Without maintenance, apps gradually break, slow down or become unavailable to new users.
How much does app maintenance cost?
It depends on the app’s size, platforms, code quality, hosting and how many improvement hours and how fast a response you need. We recommend a plan after a free app health check.
What is included in your app maintenance plan?
Bug fixes, OS and device compatibility updates, security patches, crash and uptime monitoring, store compliance, backups and a monthly report. Growth plans add monthly hours for new features.
Do you support both mobile and web apps?
Yes. We maintain Android, iOS and Flutter apps, web apps and the back ends and APIs they share.
Can you maintain an app built by another agency?
Yes. We start with a takeover audit of the code, accounts and current issues, document what exists, then stabilise the app before adding anything new.
How quickly do you respond to issues?
Response times depend on severity and your plan. Critical issues, such as the app being down or a security problem, are handled first; exact times are written into your service-level agreement.
How often do you release updates?
Most apps get a planned release every month, plus urgent fixes whenever needed. Each release is tested and comes with release notes.
Is security included in app maintenance?
Yes. Every plan includes dependency and library updates, vulnerability checks and urgent patches for security issues.
What happens when Apple or Google release a new OS?
We test your app on the beta versions before release, fix anything that breaks and ship a compatibility update, so your users aren’t the first to find problems.
Will you add new features as well?
Yes. Growth plans include monthly hours for new features and improvements, planned with you in a roadmap call.
Do you offer long-term support contracts?
Yes. We offer monthly and annual plans; longer plans make budgeting easier and let us plan improvements further ahead. [Confirm notice period and contract terms.]
Do you work with clients outside Mumbai?
Yes. Our team is based in Andheri East, Mumbai, and we support apps for businesses across India and internationally.
12 — Glossary
App maintenance terms, explained simply
- Corrective maintenance
- Fixing bugs and errors in an app.
- Adaptive maintenance
- Updating an app for changes around it: new OS versions, devices, store rules and third-party APIs.
- Perfective maintenance
- Improving an app’s features, usability and speed based on feedback.
- Preventive maintenance
- Work that stops problems before they happen, such as security patches and code clean-up.
- SLA
- Service-level agreement: the response and resolution times agreed in your support plan.
- Crash-free users
- The percentage of users who use the app without experiencing a crash.
- Target API level
- The Android version an app is built for; Google Play requires apps to target a recent level.
- Regression testing
- Re-testing existing features after a change to make sure nothing else broke.