Make it your own

Most studies only need the CARP Studies app and a protocol. When you need more, this is where each change happens. You can make one change without the others.

You want	What you change	Start here
A new kind of data	Write a sampling package: a probe that collects it and a data type that describes it.	Create your own package
A new device (a wearable or sensor)	Write a device manager in a sampling package, or use an existing wearable package.	Device manager, Polar, Movesense
Your own server	Write a data manager that sends measurements to your server, and a data endpoint to choose it in the protocol.	Use your own server
Your own screens or flow	Build your own Flutter app with CARP Mobile Sensing.	Build your own app

Note

A new data type or device only reaches the Studies app if its package is added to the app. The app is open source: carp-dk/carp_study_app. Fork it, or ask the CARP team on Discord.

The Studies app or your own app?

	CARP Studies app	Your own app
You write	A study protocol (and texts: consent, translations, messages)	A Flutter app that uses CAMS
Screens	Fixed: Home, Tasks, Statistics, Connections	Anything you design
Good for	Most studies	Custom screens or a custom flow
App store	Already on iOS and Android	You build, sign and publish it
Start with	Step 2: Run your study	Build your own app

Either way, the protocol is the same.