Calorie Tracker Guide · 2026-11-14
Verdict
Senza: Keto & Fasting is marked for Barcode scanner, Macro tracking, Fasting. Function Health is not. Editorial scores are 6.3 for Function Health and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Function Health: Free.
Senza: Keto & Fasting: Free.
Features that differ
Barcode scanner: only Senza: Keto & Fasting is marked available.
Macro tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Fasting: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Fit
Function Health has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
User feedback: Function Health 10, Senza: Keto & Fasting 9. Function Health: Bayesian rating 4.92 (iOS 4.93x25191 + Play 4.83x353, prior 4.3x200) + review stars sentiment +0.25 over 20 reviews. Senza: Keto & Fasting: Bayesian rating 4.72 (iOS 4.78x10816 + Play 4.44x1907, prior 4.3x200) + review stars sentiment +0.45 over 20 reviews.
Maintenance: Function Health 9, Senza: Keto & Fasting 1.7. Function Health: Last release 9 days ago (half-life 90d, 70%) + median 6 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Function Health 7.3, Senza: Keto & Fasting 6.8. Function Health: log10 of 25544 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Who should pick which
Choose Senza: Keto & Fasting if you need Barcode scanner and Macro tracking.