Hello! I see you’ve downloaded the IQ Masters app on your Android 15 device, but it’s not opening. Let’s look into this together.

To better help you, could you tell me if the app shows any error message or just stays on a loading screen when you try to open it? Also, did the app ever open successfully before, or is this the first time after downloading?

Meanwhile, here are some steps you can follow to try to resolve the issue:

1. Restart Your Device: Sometimes a simple restart clears temporary glitches.

2. Clear App Cache and Data:
- Go to your device’s Settings > Apps > IQ Masters
- Tap on Storage & cache, then Clear cache
- If still not opening, try Clear storage/data (this resets the app, but you might lose any saved progress)

3. Check for App Updates:
- Open Google Play Store
- Search for IQ Masters and see if there is an Update button; if yes, update the app.

4. Reinstall the App:
- Uninstall IQ Masters
- Restart your device
- Download and install it again from the Google Play Store

5. Check Device Storage: Make sure you have enough free space as low storage can prevent apps from launching properly.

6. Confirm App Permissions: Sometimes apps won't open if they lack essential permissions.
- Settings > Apps > IQ Masters > Permissions, and allow necessary permissions like storage.

If you’ve tried these steps already or the app still won’t open after them, please let me know. We can dive deeper into possible compatibility or network issues.

Are you able to try these, and let me know what happens?