Calorie Tracker Guide · 2026-11-14
Verdict
Fuelin - Performance Nutrition prices as Free · 5 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Fuelin - Performance Nutrition is marked for Water tracking, Coach connection. Senza: Keto & Fasting is not. Senza: Keto & Fasting is marked for Fasting. Fuelin - Performance Nutrition is not. Editorial scores are 5.3 for Fuelin - Performance Nutrition and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Fuelin - Performance Nutrition: Free · 5 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Fuelin - Performance Nutrition $99, Senza: Keto & Fasting unknown.
Yearly figure: Fuelin - Performance Nutrition $399, Senza: Keto & Fasting unknown.
Features that differ
Water tracking: only Fuelin - Performance Nutrition is marked available. Mentioned in the App Store description.
Fasting: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Coach connection: only Fuelin - Performance Nutrition is marked available. Mentioned in the App Store description.
Fit
Fuelin - Performance Nutrition has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Pricing value: Fuelin - Performance Nutrition 0, Senza: Keto & Fasting 10. Fuelin - Performance Nutrition: 10 - annualised price $399.00/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Feature depth: Fuelin - Performance Nutrition 3.8, Senza: Keto & Fasting 2.3. Fuelin - Performance Nutrition: 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: Fuelin - Performance Nutrition 6.7, Senza: Keto & Fasting 9. Fuelin - Performance Nutrition: Bayesian rating 4.46 (iOS 4.48x1346 + Play 0.00x0, prior 4.3x200) + review stars sentiment -0.20 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: Fuelin - Performance Nutrition 8.5, Senza: Keto & Fasting 1.7. Fuelin - Performance Nutrition: Last release 14 days ago (half-life 90d, 70%) + median 10 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Fuelin - Performance Nutrition 5.2, Senza: Keto & Fasting 6.8. Fuelin - Performance Nutrition: log10 of 1346 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Coachability: Fuelin - Performance Nutrition 5.5, Senza: Keto & Fasting 0. Fuelin - Performance Nutrition: Best quality of aiCoach / coachConnection features. Senza: Keto & Fasting: Best quality of aiCoach / coachConnection features.
Who should pick which
Choose Fuelin - Performance Nutrition if you need Water tracking and Coach connection. Choose Senza: Keto & Fasting if you need Fasting.