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App Development Agency

Post-Launch Care

App Maintenance and Support That Keeps Your Product Current and Stable

Every app starts aging the day it launches. Apple and Google ship new OS versions every year, store policies change, SDKs are deprecated, and dependencies collect security advisories. Our app maintenance and support plans handle that steady stream of work on a schedule, with monitoring and response times you can plan around.

  • Annual OS readiness

    We test against iOS and Android betas each summer so your app is ready when new versions ship.

  • Monitoring that alerts people

    Crash, performance and uptime monitoring with alerts routed to an engineer, not just a dashboard.

  • Dependencies kept current

    Scheduled upgrades of frameworks and libraries so you never face a two-years-behind emergency.

  • Defined response times

    Severity levels and SLAs written into the agreement, so everyone knows what happens at 2 a.m.

  • Small improvements included

    Hours for minor enhancements and UX fixes alongside upkeep, so the app improves over time.

Why App Maintenance and Support Is Not Optional

An unmaintained app does not stay the same; it degrades. New OS versions change permission prompts and background behavior, store requirements raise minimum SDK targets, third-party SDKs reach end of life, and certificates expire. Each change is small, but ignoring them for a year or two turns routine upkeep into a modernization project.

Recurring changes that drive maintenance work
SourceWhat happensTypical impact if ignored
Apple iOS release (each fall)New APIs, privacy rules, Xcode and SDK minimums for submissionsCannot ship updates until the build toolchain is upgraded
Google Play target API policy (yearly)New apps and updates must target a recent Android API levelUpdates blocked; app may be hidden from users on newer devices
Framework releasesReact Native, Flutter, Kotlin and Swift versions move onUpgrades grow harder the longer they are deferred
Third-party SDKsPayment, analytics, maps and auth SDKs deprecate old versionsFeatures stop working without warning
Security advisoriesCVEs in dependencies and backend packagesExposure until patched; audit and customer questionnaire findings
Certificates and keysPush certificates, signing keys and TLS certificates expirePush stops, builds fail or APIs go down
Recurring changes that drive maintenance work

Maintenance is also where small product improvements happen. Crash logs, support tickets and store reviews point to friction that was invisible before launch, and fixing it steadily often does more for retention than a large new feature. We treat each month as a chance to make the app slightly better, not just to keep it alive.

What Our Maintenance Plans Include

  • OS and device compatibility: testing on new iOS and Android betas, fixes before public release, and support for new screen sizes.
  • Dependency upgrades: scheduled framework and library updates with automated update pull requests and review.
  • Security patching: dependency scanning, prioritized fixes for critical advisories, and secret rotation.
  • Monitoring and alerting: crash reporting, performance monitoring, backend uptime and error tracking.
  • Incident response: triage, hotfixes and expedited store review requests when needed.
  • Store and account upkeep: policy compliance, privacy labels, data safety forms and certificate renewals.
  • Minor enhancements: a bank of hours for small features, copy changes and UX fixes.

We support apps we built and apps built by others. Taking over a codebase starts with an onboarding audit, so we know its risks before we commit to response times.

Service Levels and Incident Response

Clear severity definitions prevent arguments during an incident. We agree on them in writing and attach response targets to each, with coverage hours matched to your plan.

Example severity levels (final targets set per agreement)
SeverityDefinitionExample response target
P1 CriticalApp down, data loss, security breach, or payments failing for most usersAcknowledge within 1 hour, continuous work until mitigated
P2 HighMajor feature broken for many users with no workaroundAcknowledge within 4 business hours
P3 MediumFeature impaired with a workaround, or affects a small groupFix in a scheduled release
P4 LowCosmetic issues, minor enhancementsPrioritized in the backlog
Example severity levels (final targets set per agreement)

Remember that mobile fixes are not instant. Even after a hotfix is ready, store review and user update adoption add time, which is why we pair releases with feature flags and remote configuration that can disable a broken feature immediately.

Taking Over an Existing App

Many maintenance relationships start with an app someone else built. The first month is about removing unknowns. We cannot promise response times on a system we have never built, deployed or debugged, so onboarding is structured and time-boxed.

  1. Access and ownership check: source repositories, cloud accounts, App Store Connect, Google Play Console, signing keys, domains and third-party dashboards, confirmed to be owned by your company.
  2. Build from scratch: we reproduce a clean build of every app and backend from source, which often uncovers missing secrets or undocumented manual steps.
  3. Dependency and security audit: outdated frameworks, known vulnerabilities and SDKs nearing end of life, ranked by urgency.
  4. Observability baseline: crash reporting, error tracking and uptime checks installed or verified, with current crash-free and error rates recorded.
  5. Runbooks: written procedures for releases, rollbacks, certificate renewal and common incidents.

At the end of onboarding you receive a short report with the risks we found, the fixes we recommend first, and the plan level that fits. If the audit shows the app was built on a weak foundation, we will say so plainly rather than quietly patching symptoms.

Monitoring and Proactive Health Checks

Good maintenance catches problems before users report them. We set up tools such as Firebase Crashlytics or Sentry for crashes, application performance monitoring for the backend, and synthetic checks for critical endpoints. Alerts go to an on-call engineer with a runbook, not just to a shared inbox.

  • Crash-free sessions and users tracked per release, with regressions flagged after rollout.
  • Staged rollouts on Google Play and phased releases on the App Store to limit impact of a bad build.
  • App start time, screen render time and API latency trends reviewed monthly.
  • Backend error rates, queue depth and database performance with alert thresholds.
  • A monthly health report covering incidents, upgrades completed and upcoming risks.

Dependency Upgrades Without Drama

The cheapest way to stay current is a little at a time. We use tools such as Renovate or Dependabot to open update pull requests automatically, group minor updates, and schedule major upgrades, such as a new React Native or Flutter version, into planned sprints with regression testing.

If your app is already far behind, the first months of a plan may focus on catching up. In severe cases, a short modernization engagement for legacy apps is the more honest recommendation. Teams on cross-platform stacks can read how we work with React Native in production for an idea of how we handle framework upgrades.

Plans and Typical Costs

A common market rule of thumb is that annual maintenance runs roughly 15–20% of the original development cost, though the right number depends on app complexity, the number of integrations and how actively you want to improve the product. We structure plans as a monthly retainer with a set number of hours and defined SLAs.

Plan structure (illustrative, scoped per app)
PlanSuitsTypically includes
EssentialStable apps with modest usageOS updates, security patches, monitoring, business-hours support
GrowthActively used apps with a roadmapEverything in Essential plus enhancement hours and faster response targets
CriticalRevenue or operations-critical appsExtended coverage, P1 on-call, quarterly architecture reviews
Plan structure (illustrative, scoped per app)

To see how maintenance fits into total cost of ownership, read our explanation of what it costs to build and run an app. The different ways to structure ongoing work are described on our engagement models page. For a quote based on your app, request a maintenance estimate.

FAQ

App Maintenance & Support FAQs

Do you maintain apps that another team built?

Yes. We start with an onboarding audit covering code quality, dependencies, build setup, monitoring and access to accounts. That gives both sides a clear view of risk before response times are agreed.

What happens when a new iOS or Android version is released?

We install the betas when they become available, typically in early summer, run your app through regression tests, and fix issues before the public release in the fall. We also update build tooling so you can keep submitting updates when store minimums change.

Can unused maintenance hours roll over?

That depends on the plan we agree. Many clients prefer a fixed retainer with a small rollover allowance, while others use a pay-as-you-go model with guaranteed response times. We put the rule in writing either way.

How fast can you ship a fix to users?

Backend fixes can go out within hours. Mobile fixes depend on store review, which is often under a day but not guaranteed, plus the time users take to update. Feature flags and remote config let us switch off a broken feature immediately while the fix is in review.

Do you need access to our App Store and Google Play accounts?

We need team-member access with appropriate roles to manage builds, releases and policy declarations. Account ownership stays with your company, and access can be revoked at any time.

Discuss your app maintenance & support project with us

Share your idea, current product, or requirements document. We will review it, ask the questions that matter, and send back a phased plan with an estimate range.