1.Download mobile app from App Store or Goole Play
2.Create profile and create online account for more features
3.Create map collections with photos, descriptions, videos, audios, routes...
4.Push the collections to cloud and share them with others or keep them offline for your own use
Key features
Offline-first appYou don't need connection to use the app (although data-heavy features might be limited - such as map and searching places in the world)
Bulk file importingImport files (images,videos,audios,...) into collection and use them within your collection.
SafeYou are the master. Everything is created on your device and you chooce what goes to cloud and with whom you want to share.
Manual backupExport collection to zip file and make your own backups on different devices.
Share with anyonePublish your collection to cloud, set desired permissions and anyone will be able to access your collection in web browser.
FutureproofIf you choose to stop using LetzMark you will be able to export collection in readable format and keep it in your filesystem.