Why Mobile Apps Need Regular Updates After Release

In short: why an app cannot be "built and forgotten"

A website can run unchanged for years. A mobile app cannot, because it lives inside someone else's ecosystems, and they keep changing:

• Apple and Google ship major iOS and Android versions every year with new rules for privacy, permissions and app behavior.
• App stores keep raising minimum requirements for builds: SDK versions, tooling and libraries.
• Third-party services — payments, maps, analytics, login — update their SDKs and switch off old versions.

Without regular updates an app does not break overnight; it degrades step by step.

The yearly iOS and Android cycle

Both platforms follow a yearly rhythm: an announcement and developer betas first, then the public release. Each new version can:

• change how permissions work — for example, Android at one point started requiring a separate permission to show notifications;
• restrict background work, location access or file access;
• change system interface elements and gestures;
• add new screen sizes and device types.

While developer betas are available, test your app on them and fix problems before users update their phones.

Google Play target SDK requirements

targetSdk is the Android version your app is officially built and tested for. Google raises the bar every year:

• new apps and updates must target a recent API level, roughly within a year of the latest major Android release; the deadline usually falls at the end of summer;
• existing apps that fall far behind on target SDK become unavailable to new users on devices running newer Android versions.

Raising targetSdk is more than changing a number in the config: it switches on new behavior rules, and part of the code usually needs rework. Current deadlines are published in the Google Play documentation.

Apple requirements

• New builds uploaded to App Store Connect must be built with a recent Xcode and SDK, and Apple raises this minimum periodically.
• Deprecated technologies are eventually banned: builds that use them fail review.
• New privacy requirements appear regularly and apply both to your code and to embedded libraries.
• Apple may remove apps that have not been updated for a long time and no longer work properly on current devices, after notifying the developer.

Deprecated APIs and libraries

An app is almost always built on dozens of third-party libraries. Over time:

• vulnerabilities are found that are fixed only in newer versions;
• vendors retire old SDK versions — payments, maps, social login, store billing libraries;
• old versions stop compiling with new tooling;
• Flutter, React Native and native toolchains release versions incompatible with old code.

The longer updates are postponed, the more changes pile up and the more an eventual "big repair" costs.

What happens to an app nobody updates

1. First months — everything works, but small issues pile up on new devices.
2. After a new OS release — crashes appear, layouts break, some features stop working.
3. After the next store deadline — you cannot ship even an urgent fix until the project meets the new requirements.
4. Later — on Google Play the app disappears for new users on recent devices, on the App Store the risk of removal grows, and reviews and ratings drop.

How to organize maintenance

• Update dependencies on a schedule, for example quarterly, not only when something breaks.
• Every summer, test the app on iOS and Android betas.
• Keep a calendar of store deadlines: target SDK, minimum Xcode versions, third-party SDK sunsets.
• Set up crash monitoring and watch reviews after every OS release.
• Put maintenance into the product budget from the start, not as an unexpected expense.