Comment by faangguyindia

On Android, it supports Google Health Connect.

Users can import up to 30 days of calorie and weight data from other apps that write to Google Health Connect.

Also, yes, Macrocodex doesn’t change your targets for every minor fluctuation in maintenance calories. It only adjusts your target when enough meaningful and measurable change has accumulated, as you correctly pointed out tracking changes below ~150 kcal is difficult.