Move reminder app

Does anyone know of a move reminder app, which works good for our watches, preferably using the build-in pedometer, not requiring access to Google health etc.
For those not knowing of such apps, they make a reminder when they sense you haven’t moved for a specific amount of time. It is bad for your health to sit still the whole day, e.g. if you have an office job. So it will remind you to take a walk or other activity.

The most useful method, without any specific app, is to set an alarm every 30 minutes!! Perfect reminder!!!