Calorie Tracker Guide · 2026-11-14
Verdict
Calorie Counter by Numify prices as Free · 7 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Calorie Counter by Numify is marked for Photo logging, Audio logging, Text logging. Senza: Keto & Fasting is not. Senza: Keto & Fasting is marked for Apple Health, Fasting. Calorie Counter by Numify is not. Editorial scores are 6.8 for Calorie Counter by Numify and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Calorie Counter by Numify: Free · 7 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Calorie Counter by Numify $5.99, Senza: Keto & Fasting unknown.
Yearly figure: Calorie Counter by Numify $59.99, Senza: Keto & Fasting unknown.
Features that differ
Photo logging: only Calorie Counter by Numify is marked available. The AI Food Scanner allows users to snap photos of meals for nutritional information. Users report mixed accuracy, with some finding it helpful and others noting inconsistencies.
Audio logging: only Calorie Counter by Numify is marked available. The app description states logging is effortless whether 'spoken, typed, or photographed'.
Text logging: only Calorie Counter by Numify is marked available. Users can type descriptions of meals for AI to interpret and log. This feature is praised by some for its convenience.
Apple Health: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Water tracking: only Calorie Counter by Numify is marked available. A Water Tracker helps monitor daily water intake. A user requested additional unit options like 'cups'.
Fasting: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Accuracy focus: only Calorie Counter by Numify is marked available. The app claims scientific precision, but user reviews report inconsistencies with AI food recognition and workout calorie burn calculations.
Fit
Calorie Counter by Numify is filed for Calorie & Macro Tracking — Users focused on precise calorie and macronutrient tracking for weight management goals.; AI-Assisted Logging — Individuals who prefer using AI for food recognition via photos, text, or voice, or barcode scanning for convenience.; Personalized Meal Planning — Those seeking AI-generated meal plans tailored to their body metrics and specific weight goals..
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Accuracy: Calorie Counter by Numify 4.5, Senza: Keto & Fasting 5. Calorie Counter by Numify: 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 Numify 6, Senza: Keto & Fasting 10. Calorie Counter by Numify: 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: Calorie Counter by Numify 9, Senza: Keto & Fasting 5. Calorie Counter by Numify: 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 Numify 7.2, Senza: Keto & Fasting 2.3. Calorie Counter by Numify: 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 Numify 9.4, Senza: Keto & Fasting 7. Calorie Counter by Numify: 60% easeOfUse + 40% beginner skill-level fit. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Calorie Counter by Numify 8.5, Senza: Keto & Fasting 9. Calorie Counter by Numify: Bayesian rating 4.71 (iOS 4.72x43327 + Play 4.53x1341, 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: Calorie Counter by Numify 9.2, Senza: Keto & Fasting 1.7. Calorie Counter by Numify: Last release 5 days ago (half-life 90d, 70%) + median 7 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 Numify 7.8, Senza: Keto & Fasting 6.8. Calorie Counter by Numify: log10 of 44668 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 Calorie Counter by Numify if you need Photo logging and Audio logging. Choose Senza: Keto & Fasting if you need Apple Health and Fasting.