Whoops, sorry we missed this! If your app keeps crashing, we'd recommend manually closing the app first (double tap the home key > find PostalPix > tap and hold until it wiggles > tap "-").
If that doesn't work, try this:
1. Delete PostalPix (tap and hold our icon on your home screen > tap the "x")
2. Restart your iPhone (hold the home key & lock button together until you see the Apple icon, ~10 sec)
3. Search for PostalPix in the App Store and reinstall it.