App maintenance costs 15–20% of the original build cost per year — a $50,000 app budgets $7,500–10,000 annually ($600–850/month). In India, the same coverage runs ₹25,000–1.5 lakh/month depending on complexity. This is not optional upkeep: Apple and Google ship major OS versions annually that break things, store policies tighten quarterly, and unmaintained apps die in the rankings as their crash rates climb.
What app maintenance includes
- OS compatibility: iOS and Android major updates (annual) plus the point releases that quietly break camera, push and payment flows
- Library and SDK updates: dependencies, payment SDKs, analytics — the security patches that cannot wait
- Store compliance: policy changes, required privacy disclosures, review-feedback remediations
- Monitoring and crash fixing: crash-free sessions held above 99% — the metric that quietly decides retention
- Performance upkeep: device fragmentation means last year's fast is this year's slow on new hardware
- Small feature work: the iteration budget most retainers include — fixes and tweaks, not features
Cost by app type
- Simple app (no backend): $200–500/month (₹15,000–40,000) — dependency updates, store compliance, light monitoring
- Data-driven app (backend, accounts): $500–1,500/month (₹40,000–1.2 lakh) — plus server costs, API upkeep, security patching
- Consumer app at scale: $1,500–5,000/month (₹1.2–4 lakh) — real traffic, real crash volume, feature iteration included
- Regulated apps (fintech, health): $2,000–8,000/month — compliance updates and audit support stack on top
The baseline economics sit in the app development cost guide; the same 15–20% law governs websites too.
The OS update reality
Every June (Apple) and yearly (Google) brings breaking changes: deprecated APIs, new permission models, required screen support, store policy tightening. Budget a focused two-to-four-week update window per major release — teams that skip one year face compound breakage the next, at multiples of the deferred cost. This is the maintenance line item nobody schedules until the store rejects the update.
Maintenance versus rescue
If your app has been unmaintained for a year-plus, the first invoice is not a retainer — it is a rescue: deferred OS updates, accumulated dependency risk, the crash backlog. Expect ₹1.5–8 lakh of remediation before the retainer makes sense. The honest maintenance partner tells you this upfront; the rescue is a project, not a subscription.
SLAs and how to read them
- Response versus resolution: 24-hour response means acknowledged, not fixed — read what is promised
- Crash severity tiers: P1 crashes (payment, login, core flow) fixed in days; P3 polish in weeks — the tiers should be written
- Included hours: what counts as maintenance versus change request — the boundary that prevents surprise invoices
- Store submission windows: who handles review rejections and how fast
Choosing the arrangement
- Solo freelancer: viable for simple apps, fragile for coverage — the month your app needs them is the month they are unavailable
- The build team's retainer: context already loaded — usually the smoothest and priced fairly
- Specialised maintenance firms: for apps whose builders have vanished — expect a paid audit first
Our mobile app development team offers maintenance retainers with the tiers above written down; see the pricing or book a call with your app store listing — the audit takes an afternoon and names what the app actually needs.
Frequently asked questions.
How much does app maintenance cost?
15–20% of build cost annually: $200–500/month for simple apps, $500–1,500 for data-driven apps with backends, $1,500–5,000 for consumer apps at scale, and $2,000–8,000 for regulated categories. India-based coverage runs ₹25,000–1.5 lakh/month.
Why do apps need maintenance every year?
Apple and Google ship major OS versions annually that break APIs, permissions and payment flows; store policies tighten quarterly; dependencies need security patching; and crash-free rates — which drive retention and rankings — decay without attention. Unmaintained apps compound breakage year over year.
What happens if I stop maintaining my app?
Gradual then sudden decline: rising crash rates depress retention and rankings, store reviews flag failures, OS updates break core flows, and eventually store rejection removes the app entirely. Recovery is a rescue project at multiples of the deferred maintenance cost.
What should an app maintenance SLA include?
Response times by severity tier (P1 payment and login crashes fixed in days), resolution targets separate from response, the boundary between included maintenance and billable change requests, and who handles store review rejections and how fast.
Should the team that built my app maintain it?
Usually the best option — context is loaded, pricing is fairer without re-onboarding, and accountability is unified. Exceptions: builders who have vanished (use rescue specialists with a paid audit first) and simple apps where a trusted solo freelancer suffices.
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