If you're experiencing issues with the app, it might be because you need to update to the latest version. Here's how to do it:
1. Tap the settings icon on your phone.
2. Open 'General' and tap 'Storage & iCloud Usage'.
3. Click 'Manage Storage' and scroll down through your apps until you find the Catapult app.
4. The version number appears at the top.
1. Open 'Settings' and select 'Applications'
2. Tap the Catapult app. The version you're running will appear at the top beneath the Catapult logo