Calorie Tracker Guide · 2026-11-14
Verdict
Calorie Counter by Lean AI prices as Free · 9 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Calorie Counter by Lean AI is marked for Photo logging, Accuracy focus. Senza: Keto & Fasting is not. Editorial scores are 6.6 for Calorie Counter by Lean AI and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Calorie Counter by Lean AI: Free · 9 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Calorie Counter by Lean AI $19.99, Senza: Keto & Fasting unknown.
Yearly figure: Calorie Counter by Lean AI $19.99, Senza: Keto & Fasting unknown.
Features that differ
Photo logging: only Calorie Counter by Lean AI is marked available. The app features an AI Meal Scanner to detect calories and macros from photos. While advertised as precise, a user review indicates 'rough' calculations, suggesting inconsistent accuracy.
Accuracy focus: only Calorie Counter by Lean AI is marked available. Advertised as precise, but user reviews report 'rough' calculations and issues with food recognition accuracy, particularly for portion sizes.
Fit
Calorie Counter by Lean AI is filed for AI-assisted food logging — Individuals who want to quickly log meals using photo recognition or barcode scanning to simplify calorie and macro tracking.; Weight management — Users focused on achieving weight loss or muscle gain goals through consistent calorie and macro monitoring.; Intermittent fasting support — Those following intermittent fasting protocols who need a tool to track their fasting windows and progress..
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Accuracy: Calorie Counter by Lean AI 4.5, Senza: Keto & Fasting 5. Calorie Counter by Lean AI: Quality rating of the accuracy feature (5 if unknown). Senza: Keto & Fasting: Quality rating of the accuracy feature (5 if unknown).
Pricing value: Calorie Counter by Lean AI 9.2, Senza: Keto & Fasting 10. Calorie Counter by Lean AI: 10 - annualised price $19.99/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Ease of use: Calorie Counter by Lean AI 7.2, Senza: Keto & Fasting 5. Calorie Counter by Lean AI: 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: Calorie Counter by Lean AI 5.8, Senza: Keto & Fasting 2.3. Calorie Counter by Lean AI: 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: Calorie Counter by Lean AI 8.3, Senza: Keto & Fasting 7. Calorie Counter by Lean AI: 60% easeOfUse + 40% beginner skill-level fit. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Calorie Counter by Lean AI 6.7, Senza: Keto & Fasting 9. Calorie Counter by Lean AI: Bayesian rating 4.46 (iOS 4.68x2652 + Play 3.95x1099, 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: Calorie Counter by Lean AI 8.6, Senza: Keto & Fasting 1.7. Calorie Counter by Lean AI: Last release 10 days ago (half-life 90d, 70%) + median 12 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Calorie Counter by Lean AI 6, Senza: Keto & Fasting 6.8. Calorie Counter by Lean AI: log10 of 3751 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Coachability: Calorie Counter by Lean AI 5.5, Senza: Keto & Fasting 0. Calorie Counter by Lean AI: Best quality of aiCoach / coachConnection features. Senza: Keto & Fasting: Best quality of aiCoach / coachConnection features.
Who should pick which
Choose Calorie Counter by Lean AI if you need Photo logging and Accuracy focus.