We understand that the alignment and zoom of the thermal imaging device and the native camera in Thermal+ (Thermal Plus) can be a problem. To help with this we have added a feature to allow you to independently manipulate the standard image to match the thermal one.
To unlock the controls simply double tap on the standard image while Thermal+ is active. Then you will be able to pinch/zoom/drag the standard image to your preference. Once you have it where you want you can double tap again and lock the setting in. It should remember it whenever you use the app after that.