Hi there! I can definitely help you with the tado° app freezing on your iPhone. Let’s try to get this sorted out so you can control your heating again.

First, can you let me know if you've tried any troubleshooting steps already, like closing the app or restarting your iPhone? This will help me guide you better.

Yes

Thanks for confirming that you've tried closing the app and restarting your iPhone. Let’s see if we can get it working again.

Here’s a step-by-step process to try and resolve the issue:

1. Force Close the App:
- Double-tap the Home button or swipe up from the bottom of the screen to see your open apps.
- Find the tado° app and swipe it up to close it completely.

2. Restart Your iPhone:
- Hold down the power button and either volume button until you see the slider to power off.
- Slide to turn off your device, then turn it back on after a few seconds.

3. Check for Updates:
- Go to the App Store and tap on your profile icon in the top right corner.
- Scroll down to see if tado° has any updates. If there is one, tap "Update."

4. Check Your Device Storage:
- Go to Settings > General > iPhone Storage. Make sure you have enough available storage, as a lack of storage can cause apps to freeze.

5. Reinstall the App:
- If none of the above work, you may want to delete the tado° app and reinstall it.
- To do this, press and hold the app icon until it jiggles, then tap the 'X' to delete, and afterward, download it again from the App Store.

These steps can help often resolve app freezing issues. Please let me know if any of these steps worked for you, or if the issue persists!