Cost & pricing · 8 min read
App Maintenance Cost in 2026: What It Costs to Keep an App Running
App maintenance costs 15 to 20 percent of the build each year. What that covers, typical budgets by app size, and when a $1.5k to $8k monthly retainer makes sense.
Zohaib KhalidCEO & Co-founder, Innovation Insight·Published 
Short answer
Maintaining an app typically costs 15 to 20 percent of its original build cost each year, plus hosting and third-party services. For an MVP that cost $15k to $45k that means roughly $2.5k to $9k a year; a full product needs $7.5k to $30k. Most teams buy maintenance as a monthly retainer of $1.5k to $8k per month, which covers OS and framework updates, security patches, monitoring, bug fixes and small improvements.
How much does app maintenance cost per year?
| App | Typical build cost | Maintenance per year (15 to 20 percent) |
|---|---|---|
| Web app MVP | $15k to $40k | $2.5k to $8k |
| Mobile app MVP (iOS and Android) | $20k to $45k | $3k to $9k |
| AI-powered MVP | $25k to $60k | $4k to $12k |
| Full product (multi-role) | $50k to $150k+ | $7.5k to $30k |
| Regulated platform (health, finance) | $80k to $200k+ | $12k to $40k |
The 15 to 20 percent rule is a planning figure from our own support work, not a law of nature. Apps with many integrations, mobile clients or compliance requirements sit at the top of the range; a stable internal web tool can sit below it. Hosting and third-party services are extra and depend on usage.
What app maintenance actually covers
- Platform updates: new iOS and Android versions every year, browser changes, and framework upgrades such as React Native, Flutter or Next.js.
- Store requirements: Google Play requires new apps and updates to target a recent Android API level, and Apple sets minimum SDK and privacy requirements for submissions each year. Miss them and you cannot ship updates.
- Security: dependency patches, certificate renewals, secret rotation and fixes for newly disclosed vulnerabilities.
- Monitoring and bug fixes: error tracking, uptime alerts, crash reports and fixing what real users find.
- Infrastructure: database upgrades, backups and restore tests, scaling as usage grows, and cost reviews.
- Small improvements: copy changes, minor features and the fixes users ask for most.
A typical maintenance calendar
| Activity | Cadence | Typical effort |
|---|---|---|
| OS and framework upgrades | Quarterly | 2 to 5 days |
| Crash, error and performance review | Monthly | Half a day to a day |
| Dependency and security patches | Monthly, or immediately for critical issues | Half a day to two days |
| Store policy and privacy updates | As announced by Apple and Google | 1 to 3 days |
| Backup restore test and infrastructure review | Quarterly | 1 day |
| Small improvements and bug fixes | Every sprint | Whatever the retainer allows |
Retainer, in-house or ad hoc?
| Option | Cost | Best for | Risk |
|---|---|---|---|
| Monthly retainer | $1.5k to $8k per month | Live products with steady but modest change | Paying for hours you do not use if the scope is too large |
| Dedicated engineer | From $4,000 a month for a senior engineer | Products with an active roadmap | Too much capacity if the roadmap is quiet |
| In-house hire | Salary, benefits and recruiting | Core products after product-market fit | Single point of failure, hard to cover leave |
| Ad hoc fixes | Hourly when something breaks | Very stable internal tools | Slow response and painful upgrades after long gaps |
At the low end of our retainer range ($1,500 a month) you get monitoring, security patches, platform updates and a small allowance of fixes with defined response times. Towards the top of the range the retainer includes regular feature work. When feature work outgrows the retainer, a dedicated team is usually cheaper per hour.
What skipping maintenance really costs
Apps rarely break on the day maintenance stops. They decay: a store rejects an update because the target SDK is too old, a library with a known vulnerability stays in production, a certificate expires on a Sunday, or a framework falls three major versions behind so the next change needs a rebuild instead of an upgrade. Teams that pause maintenance for a year typically spend more catching up than they saved, and often under time pressure because a store deadline or a security issue forced the work.
How maintenance differs for web, mobile and AI apps
| App type | What needs the most attention | Why |
|---|---|---|
| Web app | Framework and dependency upgrades, security patches | Browsers update constantly and web dependencies publish frequent security fixes |
| Mobile app | Yearly iOS and Android releases, store policy and SDK deadlines | Stores stop accepting updates built against old SDKs |
| AI features | Model updates, prompt and evaluation reviews, cost monitoring | Providers retire models and release new ones, and answer quality can drift |
| Regulated app | Access reviews, audit logs, risk assessment updates | Compliance is an ongoing process, not a launch checklist |
Signs you need more than maintenance
- Every change breaks something else, so small fixes take days.
- The framework or runtime is several major versions behind and upgrades keep being postponed.
- Hosting costs grow faster than users.
- Nobody on the team fully understands a core part of the system.
- In these cases a short audit and a refactoring plan save money compared with patching indefinitely.
Running costs that are not maintenance
- Hosting, databases and storage: tens to hundreds of dollars a month at MVP scale, growing with users.
- Third-party services: email, SMS, maps, video, AI models and analytics, usually billed by usage.
- Store accounts: the Apple Developer Program is $99 a year; Google Play charges a one-time registration fee.
- Domains, certificates and monitoring tools.
How to lower maintenance costs
- Choose mainstream frameworks and keep dependencies few and pinned.
- Automate tests and deployments so upgrades are routine rather than risky.
- Upgrade a little every quarter instead of a lot every two years.
- Use managed services for databases, authentication and queues so patching is someone else's job.
- Keep the same engineers who built the app on the retainer; context saves hours every month.
See our pricing for retainers and monthly rates, and how much it costs to make an app for build budgets.
Sources
- Innovation Insight pricing and retainers
- Google, target API level requirements for Google Play apps: https://developer.android.com/google/play/requirements/target-sdk
- Apple, upcoming requirements for App Store submissions: https://developer.apple.com/news/upcoming-requirements/
- Apple, Apple Developer Program: https://developer.apple.com/programs/
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Zohaib Khalid
CEO & Co-founder, Innovation Insight
Zohaib leads strategy, client partnerships and delivery at Innovation Insight. He has spent a decade turning founder briefs into products that ship and still reviews every proposal that leaves the company.
LinkedInRelated questions.
How much does app maintenance cost?
Typically 15 to 20 percent of the build cost per year, or a monthly retainer of $1.5k to $8k per month. Hosting and third-party services are extra.
What is included in app maintenance?
Platform and framework updates, store compliance, security patches, monitoring, bug fixes, infrastructure care and small improvements.
Do I need maintenance if my app works fine?
Yes. Apple and Google change their requirements every year, and libraries receive security fixes. Without updates, you eventually cannot publish new versions and security risk grows.
Is a retainer cheaper than hiring in-house?
For most products after launch, yes. A retainer from $1,500 a month costs far less than a full-time engineer and covers several skills.
Can you maintain an app another company built?
Yes. We start with a one- to two-week audit of the code, infrastructure and store accounts, then fix the riskiest issues before moving to a regular retainer.