Hi there! I'm sorry to hear that the Outdooractive app isn't opening on your iPhone. Let's work together to get you back to accessing your route.

First, can I ask if you recently updated your iOS or the Outdooractive app itself? Also, have you tried restarting your device or reinstalling the app yet? Knowing what steps you've already tried will help me guide you better.

In the meantime, here are some initial steps you can try:

1. Check for app updates: Open the App Store, tap your profile icon, and scroll to see if an update for Outdooractive is available. If yes, update the app.

2. Restart your iPhone: Sometimes a simple restart resolves app startup issues.

3. Free up some storage: Low storage can cause apps to misbehave. You can check storage under Settings > General > iPhone Storage.

4. Reinstall the app: Press and hold the Outdooractive app icon, tap Remove App, then reinstall it from the App Store. Note that you might need to log in again, so have your credentials handy.

5. Check internet connection: Ensure you have a stable internet connection since some Outdooractive features require it.

If you’ve already tried these, let me know, and we can explore some advanced fixes or check for any known outages or compatibility issues specific to iOS version 18.6.2.

Are you able to try these steps now?