As some of our enthusiastic community members have mentioned, you can now save your map locally. For more details on how this works, please refer to the post Firmware 3.9.10 & App 3.15.3 – Feature Highlights - Yarbo Official / Updates & Product Releases - Yarbo Forum
At the moment, cloud storage is not yet supported, but we appreciate your feedback and interest — it’s something we’re continuing to evaluate for the future.