Epicollect5 is available for Android phones and tablets, iPhones and iPads.
The app is completely free.
Use it on as many devices as you like, no limits.
Add your project on the device
Just click "Add project" on the app home page
Search for your project
Tap on it to download it.
Yor are good to go.
Select your project and add entries to it.
Collect data online or offline.
Upload your data to the server the next time you are online.
View and download your data from the server.
More info on viewing and downloading data.
Read full Epicollect5 User Guide.