Calorie Tracker Guide · 2026-11-14
Verdict
Senza: Keto & Fasting is marked for Barcode scanner, Apple Health, Macro tracking. Libre by Abbott is not. Editorial scores are 5.3 for Libre by Abbott and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Libre by Abbott: Free.
Senza: Keto & Fasting: Free.
Features that differ
Barcode scanner: only Senza: Keto & Fasting is marked available.
Apple Health: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Macro tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Workout 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
Libre by Abbott has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Feature depth: Libre by Abbott 1.1, Senza: Keto & Fasting 2.3. Libre by Abbott: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. Senza: Keto & Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
User feedback: Libre by Abbott 7.2, Senza: Keto & Fasting 9. Libre by Abbott: Bayesian rating 4.53 (iOS 4.57x259495 + Play 4.31x49034, prior 4.3x200) + review stars sentiment -0.30 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: Libre by Abbott 6.6, Senza: Keto & Fasting 1.7. Libre by Abbott: Last release 22 days ago (half-life 90d, 70%) + median 104.5 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Libre by Abbott 9.1, Senza: Keto & Fasting 6.8. Libre by Abbott: log10 of 308529 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 Apple Health.