Langcollab is the first social language learning app where everyone can contribute.
Make your own lessons, add new translations and voice recordings, even new languages and dialects!
This is my first app with Expo and overall the experience has been great 
Backend is AWS Lambda, DynamoDB and S3.
Please try it out and let me know what you think!
Promo video: Langcollab - Learn Languages Collaboratively - YouTube
App store: https://itunes.apple.com/us/app/langcollab/id1447038027
Google play: https://play.google.com/store/apps/details?id=rolznz.langcollab
Facebook page: Redirecting...
Website: https://langcollab.app