Marvin saves your changes on your phone first and syncs them when you're online. Usually this happens in the background within seconds.
Something I changed on my computer isn't on my phone
Check your phone is online.
Close the app completely and open it again.
Check that sync is on: sidebar > Account & Settings > Cloud Sync > Cloud sync.
Make sure you're logged in with the same account on both devices.
Calendar events aren't updating
Go to sidebar > Account & Settings > Sync Calendar to pull in changes right away.
Apple Watch isn't up to date
See Apple Watch and tap Sync now in Apple Watch Troubleshooting.
Still not syncing?
Go to sidebar > Account & Settings > Cloud Sync.
Tap Share sync diagnostics and send it to us.
Email us from Email Support and describe what's missing and on which device.
Please don't delete and reinstall the app before talking to us if you have changes on your phone that haven't synced yet. They could be lost.