Apps Not Opening on Android? 12 Fixes

You tap an app icon. It flashes open and vanishes. Or nothing happens at all. Or you get “Unfortunately, [app] has stopped” over and over until you give up.

The single most useful diagnostic takes five seconds: try three or four different apps. If only one misbehaves, the app’s own data is corrupted or it needs an update. If several do, the phone is short on memory or storage, or a shared component like Android System WebView or Google Play Services has broken — and that’s a completely different fix list. The twelve fixes below are ordered accordingly.

Find Your Situation

How to Fix Apps That Won’t Open on Android

Fix 1: Restart the Phone

Boring, and genuinely the most effective single step for vague launch failures — it clears memory and restarts every background service apps depend on.

1. Power off fully, wait 30 seconds, power on.
2. Test the failing app before changing anything else.

Fix 2: Force Stop the App

More thorough than swiping it from recents — it kills every process the app is running.

1. Long-press the app icon → App info → Force stop → OK.
2. Reopen it. If it launches now but fails again later, continue to the cache steps.

Fix 3: Clear the App’s Cache (Then Data)

Corrupted temporary files are the leading cause when a single app refuses to launch.

1. Long-press the app → App info → Storage & cache → Clear cache. Reopen and test.
2. Still failing? Return and tap Clear storage / Clear data — this logs you out and resets the app to a fresh state, so know your login first.

Fix 4: Update the App — or Reinstall It

1. Play Store → profile → Manage apps & device → Updates → update the failing app.
2. No update available and still broken? Uninstall it, restart the phone, and reinstall from the Play Store — that clears corrupted install files a cache clear can’t reach.
3. If updates themselves won’t install, our Play Store install guide covers that first.

Fix 5: Free Up Storage

The top cause when many apps fail together. Android needs working room; below roughly 1 GB free, apps get killed as they launch.

1. Settings → Storage — check what’s free and what’s eating space.
2. Delete old videos and downloads, offload unused apps, and clear caches on your biggest apps.
3. Aim for 2 GB or more free on modern phones — then retest.

Fix 6: Update Android System WebView and Google Play Services

These two components run inside almost every app — when they break, apps crash by the dozen. A faulty WebView update once crashed apps across millions of Android phones at the same time.

1. Play Store → search Android System WebView → Update. Do the same for Google Chrome and Google Play Services.
2. If your crashes began right after a WebView update, do the opposite: Settings → Apps → ⋮ → Show system apps → Android System WebView → ⋮ → Uninstall updates.
3. Restart, then test. Play Services misbehaving on its own? See our Play Services keeps stopping guide.

Fix 7: Free Up Memory (RAM)

1. Close background apps from the recents view — on phones with 3–4 GB RAM, a heavy app simply can’t find room to launch.
2. Uninstall app “boosters” and cleaners; they consume the memory they claim to free.
3. Samsung users: Settings → Device care → Memory → RAM Plus can add virtual memory on supported models.

Fix 8: Turn Off Battery Restrictions

Aggressive power saving kills apps as they open — especially on Samsung, Xiaomi, Oppo, and Vivo phones.

1. Long-press the app → App info → Battery → set to Unrestricted.
2. Samsung: Settings → Battery → Background usage limits → remove the app from Sleeping apps and Deep sleeping apps.
3. Turn off Battery Saver while testing.

Fix 9: Check Permissions and Connection

1. App info → Permissions → grant what the app needs; a missing permission can stop it launching entirely.
2. App info → Mobile data & Wi-Fi → enable Background data.
3. Confirm the internet works — online-only apps close immediately without a connection, which looks like a crash.

Fix 10: Wipe the System Cache Partition

The fix for “everything broke after the system update.” It clears Android’s own temporary files and deletes none of your data.

1. Power off. Then hold the Power + Volume Up buttons together until the recovery menu appears (the combination varies by brand; Samsung requires the phone to be connected to a computer on recent models).
2. Use the volume keys to select Wipe cache partition, confirm with the power button.
3. Select Reboot system now.
4. Nothing personal is erased — this is not a factory reset.

Fix 11: Check for Overheating and Update Android

1. If apps crash after extended use or while charging, let the phone cool — thermal throttling closes apps to protect the hardware.
2. Settings → System → Software update → install anything pending; manufacturers ship stability patches after major releases.

Fix 12: Reset App Preferences, Then Safe Mode

1. Settings → Apps → ⋮ → Reset app preferences — restores default permissions and re-enables disabled system components without deleting data.
2. Boot into Safe Mode (hold the power button, then long-press “Power off” and confirm) — it loads only system apps. If everything works in Safe Mode, a third-party app you installed is the cause; uninstall recent additions one by one.

Still Nothing Opening?

• Factory reset is the last resort — back up first, and understand it erases everything. Before that, try one more thing: create a new user profile (Settings → System → Multiple users) and test the app there; if it works, your main profile’s data is corrupted rather than the phone.
• Very old phone with a modern app? Apps drop support for old Android versions constantly. Check the app’s “Requires Android” line in the Play Store — if you’re below it, no fix on your side exists.
• Avoid “RAM booster” and “fix crash” apps. They’re the most-advertised solution to this problem and the least useful — they run constantly, consume memory, and often carry ads or worse.
• One specific app on iPhone instead? Our WhatsApp not opening on iPhone guide covers the iOS equivalent of this problem.

More Android fixes on MozPK

• Google Play Services keeps stopping
• Google Play Store keeps stopping
• Can’t install apps from Play Store
• Android battery draining fast after update
• App installed but not showing
• App Fixes Hub

Frequently Asked Questions

Why won’t my apps open on Android?

If it’s one app, its cached data is usually corrupted or it needs updating. If it’s many apps, the phone is short on storage or memory, or a shared component like Android System WebView or Google Play Services has broken.

Does clearing an app’s cache delete my data?

No — “Clear cache” removes temporary files only. “Clear storage” or “Clear data” is the one that resets the app and signs you out, so try cache first.

Why did all my apps start crashing after an update?

Usually a stale system cache or a bad Android System WebView version. Wipe the cache partition from recovery mode (it deletes no personal data), and update or roll back WebView.

Does wiping the cache partition erase my photos?

No — it clears Android’s temporary system files only. Photos, apps, messages, and settings are untouched. That’s what separates it from a factory reset.

How much free storage does Android need?

Keep at least 1–2 GB free. Below that, Android starts closing apps as they launch, which is exactly what “apps not opening” looks like on a full phone.