Calorie Tracker Guide · 2026-11-14
Verdict
Lifesum: AI Calorie Counter prices as Free · 8 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Lifesum: AI Calorie Counter is marked for Photo logging, Audio logging, Text logging. Senza: Keto & Fasting is not. Editorial scores are 7 for Lifesum: AI Calorie Counter and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Lifesum: AI Calorie Counter: Free · 8 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Lifesum: AI Calorie Counter $29.99, Senza: Keto & Fasting unknown.
Yearly figure: Lifesum: AI Calorie Counter $99.99, Senza: Keto & Fasting unknown.
Features that differ
Photo logging: only Lifesum: AI Calorie Counter is marked available. Allows snapping photos for instant nutrition details.
Audio logging: only Lifesum: AI Calorie Counter is marked available. Supports voice-based logging for hands-free entry.
Text logging: only Lifesum: AI Calorie Counter is marked available. Standard text input remains available alongside AI tools.
Micronutrients: only Lifesum: AI Calorie Counter is marked available. Basic tracking available; depth varies by food database entry.
Water tracking: only Lifesum: AI Calorie Counter is marked available. Dedicated water tracker with widget support.
Accuracy focus: only Lifesum: AI Calorie Counter is marked available. Database accuracy is generally good, but AI logging can be inconsistent.
Fit
Lifesum: AI Calorie Counter is filed for Visual Trackers — Users who prefer snapping photos over manual entry.; Structured Dieters — Those following specific plans like Keto or Paleo.; Data Integrators — Users who want to sync nutrition with Apple Health/Fitbit..
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Accuracy: Lifesum: AI Calorie Counter 4.5, Senza: Keto & Fasting 5. Lifesum: AI Calorie Counter: Quality rating of the accuracy feature (5 if unknown). Senza: Keto & Fasting: Quality rating of the accuracy feature (5 if unknown).
Pricing value: Lifesum: AI Calorie Counter 3.8, Senza: Keto & Fasting 10. Lifesum: AI Calorie Counter: 10 - annualised price $99.99/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Ease of use: Lifesum: AI Calorie Counter 9, Senza: Keto & Fasting 5. Lifesum: AI Calorie Counter: 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: Lifesum: AI Calorie Counter 10, Senza: Keto & Fasting 2.3. Lifesum: AI Calorie Counter: 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: Lifesum: AI Calorie Counter 9.4, Senza: Keto & Fasting 7. Lifesum: AI Calorie Counter: 60% easeOfUse + 40% beginner skill-level fit. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Lifesum: AI Calorie Counter 6.8, Senza: Keto & Fasting 9. Lifesum: AI Calorie Counter: Bayesian rating 4.48 (iOS 4.65x151048 + Play 4.41x379366, prior 4.3x200) + review stars sentiment -0.35 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: Lifesum: AI Calorie Counter 9.1, Senza: Keto & Fasting 1.7. Lifesum: AI Calorie Counter: Last release 2 days ago (half-life 90d, 70%) + median 11 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Lifesum: AI Calorie Counter 9.5, Senza: Keto & Fasting 6.8. Lifesum: AI Calorie Counter: log10 of 530414 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 Lifesum: AI Calorie Counter if you need Photo logging and Audio logging.