Iphone camera is shaking in third party apps

I have an Iphone 7. and it’s ios version is uptodate but still my iphone rear camera with third party apps like snapchat instagram and paytm and phonepe camera during scanning is also shaking. While normal rear and front camera of iphone is working perfectly. Its been 7 days with this problem. Please have a look into this glitch.

waiting for your response.