To address issues with the Luno app not functioning properly and difficulties logging in, follow these steps:

1. Check Internet Connection: Ensure your device has an active internet connection. Try switching between Wi-Fi and mobile data to see if the connection improves.

2. Force Close the App: If the app is unresponsive, force close it. On your iPhone:
- Swipe up from the bottom of the screen and pause in the middle to access the app switcher.
- Swipe left or right to locate the Luno app, then swipe it up to close.

3. Restart Your Device: A simple restart can often resolve temporary issues. Switch off your iPhone, wait a few moments, then turn it back on.

4. Update the App: Ensure you are using the latest version of the Luno app. Open the App Store, tap on your profile icon, scroll down to see pending updates, and update Luno if available.

5. Check for Service Status: Sometimes, the app may not work due to server issues. You can check the current status of Luno at their service status page here - [learn more].

6. Reinstall the App: If issues persist, uninstall the Luno app and reinstall it:
- Press and hold the Luno app icon until it starts to jiggle.
- Tap the ‘X’ to delete it, then go to the App Store to download it again.

7. Verify Account Credentials: If you're still unable to log in, ensure that you are entering the correct email address and password. If you are using two-factor authentication (2FA), ensure you have access to your 2FA app.

8. Password Reset: If you cannot remember your password or think it might be incorrect, use the 'Forgot Password?' option on the login screen to reset your password.

9. Troubleshoot 2FA Issues: If you're locked out due to 2FA problems, you can refer to the account recovery options detailed here - [learn more].

10. Contact Support: If you have tried all these steps and still have issues, reach out to Luno support via their official support channels here - [learn more].

After performing these steps, check if the app is functional again. If not, the support team will provide further assistance.

Steps to fix Luno app crashes

To resolve issues with the Luno app crashing, you can follow these systematic steps:

1. Force Close the App: First, try to force close the Luno app. On your iPhone, swipe up from the bottom of the screen and pause to view the app switcher. Find the Luno app and swipe it up to close.

2. Restart Your Device: Power off your iPhone completely, wait a few moments, and then turn it back on. This can help reset temporary issues.

3. Check Internet Connection: Ensure your internet connection is stable. Switch between Wi-Fi and mobile data to see if that resolves the crash issue.

4. Update the App: Make sure that you are using the latest version of the Luno app. Open the App Store, tap on your profile icon, and check for any available updates for Luno. Update it if necessary.

5. Reinstall the App: If the problem persists, uninstall the Luno app and reinstall it. To do this, press and hold the Luno app icon until you see the options. Choose 'Remove App' or 'Delete App', then head to the App Store to install Luno again.

6. Clear App Cache (if applicable): In some cases, clearing the app cache can help resolve issues. On iPhone, this may involve reinstalling the app since iOS does not have a direct cache clearing option.

7. Check for Background Processes: Make sure there are no heavy background processes or apps running that might interfere with Luno's performance. Close any unnecessary apps.

8. Verify App Permissions: Ensure that Luno has the necessary permissions to operate. Go to Settings > Luno and check the permissions like Location, Notifications, etc.

9. Check for Device Storage: Low storage can affect app performance. Go to Settings > General > iPhone Storage to see if you have enough free space. If storage is low, consider deleting some files or apps you no longer need.

10. Contact Luno Support: If all else fails, contact Luno support for further assistance. They can provide more specific troubleshooting steps based on your situation. Reach out via their support page here - [learn more].

By following these steps, you should be able to troubleshoot and hopefully resolve the crashing issues with the Luno app. If problems continue, the support team can help identify any underlying issues with your account or device compatibility.