Your app works. Nobody is building it any more. Then Google raises the target SDK, Apple changes a permission rule, a dependency goes unmaintained, and a crash starts climbing in a release nobody noticed shipping.

This is how you keep an app alive without keeping an engineer on payroll. Every month

Crash monitoring, with the top issues actually fixed rather than listed

OS and SDK upgrades handled before the store deadline, not after the warning email

Dependency and security updates • Store compliance: policy changes, privacy declarations, new listing requirements

Small changes and fixes, turned around within an agreed number of days

A short written report, so you know what happened without having to ask

What it costs It depends on how many apps, how many platforms, and how much small change you expect each month.

Tell me what you’ve got and I’ll quote a monthly figure — and I’ll tell you if a one-off cleanup first would make the retainer cheaper.

Unglamorous, and the easiest thing on this page to say yes to. That’s exactly why it’s here.