In general, the timr App is in sync with the Web Application if you've connected them. However, you can also track your time and enter records in the timr App if your smartphone is offline. The synchronization process will then start when you are online again.
The arrow symbol shows your current sync status.
In case your smartphone is offline and you've made some entries on your smartphone App which haven't been synchronized with the timr Web Application you will see a red number next to the arrow symbol like in the following screen.
If you tap on the symbol, you will see more details.
As soon as your smartphone is online again, the app normally synchronizes all unsynchronized entries automatically.
In any case you can initialize the syncing manually by tapping on "Synchronize".
When all entries have been synchronized you will see the status "Fully synchronized".