When you complete the round you will come to a page that shows the synchronization process and how many percent is synchronized and when the is synchronization is complete.

If you click on show completed rounds you will come to the sync view and can see all your completed rounds.
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To manually get to this view, do the following:
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Tap on your project on the start screen then

1. Open the menu bar
2. Tap on sync

Here you can see if the round is synchronized. If not, you'll see the percentage that has been synchronized.

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