Calorie Tracker Guide · 2026-11-14
Verdict
Ninja Fit: AI Calorie Tracker prices as Free · 8 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Ninja Fit: AI Calorie Tracker is marked for Photo logging, Coach connection. Senza: Keto & Fasting is not. Senza: Keto & Fasting is marked for Fasting. Ninja Fit: AI Calorie Tracker is not. Editorial scores are 6.1 for Ninja Fit: AI Calorie Tracker and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Ninja Fit: AI Calorie Tracker: Free · 8 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Ninja Fit: AI Calorie Tracker $4.99, Senza: Keto & Fasting unknown.
Yearly figure: Ninja Fit: AI Calorie Tracker $29.99, Senza: Keto & Fasting unknown.
Features that differ
Photo logging: only Ninja Fit: AI Calorie Tracker is marked available. The app offers 'Snap a photo to instantly analyze your meal' for nutritional information.
Fasting: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Coach connection: only Ninja Fit: AI Calorie Tracker is marked available. Users can 'share your progress with your coach for expert advice,' implying a mechanism for external coach interaction, though not an integrated coaching platform.
Fit
Ninja Fit: AI Calorie Tracker is filed for Individuals seeking structured calorie and macro tracking — The app provides an AI-driven calorie tracker and detailed macro tracking for precise dietary control.; Users interested in AI-powered meal analysis — Features like photo meal analysis and barcode scanning simplify food logging and nutritional assessment.; People needing personalized nutrition guidance — Offers personalized nutrition plans based on individual goals and metabolism analysis..
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Pricing value: Ninja Fit: AI Calorie Tracker 8.5, Senza: Keto & Fasting 10. Ninja Fit: AI Calorie Tracker: 10 - annualised price $29.99/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Ease of use: Ninja Fit: AI Calorie Tracker 9, Senza: Keto & Fasting 5. Ninja Fit: AI Calorie Tracker: 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: Ninja Fit: AI Calorie Tracker 6.6, Senza: Keto & Fasting 2.3. Ninja Fit: AI Calorie Tracker: 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: Ninja Fit: AI Calorie Tracker 9.4, Senza: Keto & Fasting 7. Ninja Fit: AI Calorie Tracker: 60% easeOfUse + 40% beginner skill-level fit. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Ninja Fit: AI Calorie Tracker 5.5, Senza: Keto & Fasting 9. Ninja Fit: AI Calorie Tracker: Bayesian rating 4.30 (iOS 4.20x10 + Play 0.00x0, prior 4.3x200) + review stars sentiment -1.00 over 2 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: Ninja Fit: AI Calorie Tracker 9, Senza: Keto & Fasting 1.7. Ninja Fit: AI Calorie Tracker: Last release 4 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: Ninja Fit: AI Calorie Tracker 1.7, Senza: Keto & Fasting 6.8. Ninja Fit: AI Calorie Tracker: log10 of 10 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Coachability: Ninja Fit: AI Calorie Tracker 5.5, Senza: Keto & Fasting 0. Ninja Fit: AI Calorie Tracker: Best quality of aiCoach / coachConnection features. Senza: Keto & Fasting: Best quality of aiCoach / coachConnection features.
Who should pick which
Choose Ninja Fit: AI Calorie Tracker if you need Photo logging and Coach connection. Choose Senza: Keto & Fasting if you need Fasting.