Faster access to your free battery check, with one clear finding, its evidence and a practical first step. Save a baseline and compare it with a later measurement after one change. The first two valid measurements and their comparison are free; results explain uncertainty and whether the periods are comparable. This update also fixes a stability issue, improves recovery from incomplete inputs and unavailable purchases, and adds separate optional controls for feature and purchase measurement. Prices and existing Pro access are unchanged.

Improved the optional, privacy-gated install measurement used to understand campaign performance. Battery diagnosis remains on device, and measurement stays off unless you explicitly opt in and allow Apple's tracking permission.