# Ipad mini4 asking for calibration of motion sensor during use of SafeSky and SkyDemon

**URL:** <https://forum.safesky.app/t/ipad-mini4-asking-for-calibration-of-motion-sensor-during-use-of-safesky-and-skydemon/1137>\
**Category:** English\
**Created:** [May 11, 2023, 1:09pm UTC](https://forum.safesky.app/t/ipad-mini4-asking-for-calibration-of-motion-sensor-during-use-of-safesky-and-skydemon/1137 "2023-05-11T13:09:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![woodholz](https://avatars.discourse-cdn.com/v4/letter/w/ecb155/32.png) [@woodholz](https://forum.safesky.app/u/woodholz)\
**Post date:** [May 11, 2023, 1:09pm UTC](https://forum.safesky.app/t/ipad-mini4-asking-for-calibration-of-motion-sensor-during-use-of-safesky-and-skydemon/1137/1 "2023-05-11T13:09:56Z")

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Hello,

I’m using SafeSky and SkyDemon on an Apple iPad mini 4.  
When using SkyDemon and SafeSky at the same time (split screen) after a certain time iOS is asking to calibrate the motion sensor, see screenshot.  
 ![Screenshot 2023-05-11 150407](https://europe1.discourse-cdn.com/flex017/uploads/safesky/original/1X/07afba83844e75b356d75e17793a02070e31775a.png)  
Even after a calibration, this message appears again and again (infrequent every 5 to 40 minutes).

Additionally both apps are loosing the GPS signal several times. But only if they run at the same time. If I use only SkyDemon or only SafeSky, I have no problems.

How can I solve this issues?

Thanks and best regards  
Tobias