Calorie Tracker Guide · 2026-11-14
Verdict
Levels - Metabolic Health prices as Free · 2 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Senza: Keto & Fasting is marked for Barcode scanner, Macro tracking. Levels - Metabolic Health is not. Editorial scores are 5.5 for Levels - Metabolic Health and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Levels - Metabolic Health: Free · 2 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Levels - Metabolic Health $15, Senza: Keto & Fasting unknown.
Yearly figure: Levels - Metabolic Health $80, Senza: Keto & Fasting unknown.
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.
Fit
Levels - Metabolic Health has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Pricing value: Levels - Metabolic Health 4.7, Senza: Keto & Fasting 10. Levels - Metabolic Health: 10 - annualised price $80.00/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Feature depth: Levels - Metabolic Health 3.1, Senza: Keto & Fasting 2.3. Levels - Metabolic Health: 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: Levels - Metabolic Health 8.1, Senza: Keto & Fasting 9. Levels - Metabolic Health: Bayesian rating 4.64 (iOS 4.67x6749 + Play 4.40x536, prior 4.3x200) + review stars sentiment -0.05 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: Levels - Metabolic Health 9, Senza: Keto & Fasting 1.7. Levels - Metabolic Health: Last release 9 days ago (half-life 90d, 70%) + median 7 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Levels - Metabolic Health 6.4, Senza: Keto & Fasting 6.8. Levels - Metabolic Health: log10 of 7285 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.