Will I still get stable video if I don't use the Osmo Mobile 3 app that comes with it?
Cos I'm using other third party video app to shoot.

The Gimbal will still work you just lose access to certain functioms

AlanHd Posted at 10-12 07:21
The Gimbal will still work you just lose access to certain functioms

Meaning the video will still be stable?

catibe3741 Posted at 10-12 07:58
Meaning the video will still be stable?

Yes the stability will be the same.

Yes,  it works just fine.

It will work perfectly fine

Hello there catibe3741. Thank you for reaching out and for these information you have shared with us. I hope that you will get the best recommendation from our DJI members with regards to this matter. Just a reminder to please use the DJI Mimo application on your DJI Osmo Mobile 3 for compatibility and reliability purposes. 3rd party application might work. However, since it's not optimized and tested by DJI we cannot guaranteed the stability of the said 3rd party applications if it will work all the time with no issues. Thank you.