Calorie Tracker Guide · 2026-11-14
Verdict
IF: Intermittent Fasting 16:8 prices as Free · 10 in-app purchase option(s). Senza: Keto & Fasting prices as Free. IF: Intermittent Fasting 16:8 is marked for Photo logging, Water tracking, Coach connection. Senza: Keto & Fasting is not. Senza: Keto & Fasting is marked for Barcode scanner, Apple Health. IF: Intermittent Fasting 16:8 is not. Editorial scores are 5.9 for IF: Intermittent Fasting 16:8 and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
IF: Intermittent Fasting 16:8: Free · 10 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: IF: Intermittent Fasting 16:8 $12.49, Senza: Keto & Fasting unknown.
Yearly figure: IF: Intermittent Fasting 16:8 $59.99, Senza: Keto & Fasting unknown.
Features that differ
Photo logging: only IF: Intermittent Fasting 16:8 is marked available. Mentioned in the App Store description.
Barcode scanner: only Senza: Keto & Fasting is marked available.
Apple Health: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Water tracking: only IF: Intermittent Fasting 16:8 is marked available. Mentioned in the App Store description.
Coach connection: only IF: Intermittent Fasting 16:8 is marked available. Mentioned in the App Store description.
Fit
IF: Intermittent Fasting 16:8 has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Pricing value: IF: Intermittent Fasting 16:8 6, Senza: Keto & Fasting 10. IF: Intermittent Fasting 16:8: 10 - annualised price $59.99/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Ease of use: IF: Intermittent Fasting 16:8 7.8, Senza: Keto & Fasting 5. IF: Intermittent Fasting 16:8: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode). Senza: Keto & Fasting: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode).
Feature depth: IF: Intermittent Fasting 16:8 3.1, Senza: Keto & Fasting 2.3. IF: Intermittent Fasting 16:8: 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.
Beginner friendliness: IF: Intermittent Fasting 16:8 8.6, Senza: Keto & Fasting 7. IF: Intermittent Fasting 16:8: 60% easeOfUse + 40% beginner skill-level fit. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: IF: Intermittent Fasting 16:8 7.3, Senza: Keto & Fasting 9. IF: Intermittent Fasting 16:8: Bayesian rating 4.51 (iOS 4.75x2660 + Play 4.48x24289, 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: IF: Intermittent Fasting 16:8 6.5, Senza: Keto & Fasting 1.7. IF: Intermittent Fasting 16:8: Last release 49 days ago (half-life 90d, 70%) + median 23 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: IF: Intermittent Fasting 16:8 7.4, Senza: Keto & Fasting 6.8. IF: Intermittent Fasting 16:8: log10 of 26949 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Coachability: IF: Intermittent Fasting 16:8 5.5, Senza: Keto & Fasting 0. IF: Intermittent Fasting 16:8: Best quality of aiCoach / coachConnection features. Senza: Keto & Fasting: Best quality of aiCoach / coachConnection features.
Who should pick which
Choose IF: Intermittent Fasting 16:8 if you need Photo logging and Water tracking. Choose Senza: Keto & Fasting if you need Barcode scanner and Apple Health.