Symptoms
- Download bar stalls at a percentage
- Install button spins with no progress
- Error saying the app couldn't be downloaded
- Download starts then disappears
Likely causes
- CommonWeak or unstable Wi-Fi/cellular connectionLarge app downloads need a steady connection and can time out on weak signal.
- CommonInsufficient storage spaceThe app store needs extra temporary space beyond the app's final size.
- PossibleApp store cache or glitchThe store app itself can get stuck in a bad state.
- PossiblePayment method issue on your accountEven for free apps, some stores verify a valid payment method on file.
- PossibleDevice incompatible with app's minimum OS requirementOlder phones may not meet the app's minimum supported OS version.
What to do
- Check your Wi-Fi or cellular connection and switch between them to test.
- Confirm you have enough free storage for the app plus some buffer space.
- Restart your phone, which often clears a stuck download queue.
- Sign out of the app store account and sign back in.
- Clear the app store's own cache (Android) or check for pending OS updates (iPhone).
- Check the app's store page for a minimum OS requirement and compare to your phone's version.
- Try downloading a different app to see if the problem is store-wide or specific to one app.
When to call a pro
If no apps will download and you've confirmed connection and storage are fine, contact the app store's support since it may be an account-level restriction.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.