Calorie Tracker Guide · 2026-11-14
Verdict
Senza: Keto & Fasting prices as Free. ZOZOFIT: 3D Body Scanner prices as Free · 8 in-app purchase option(s). Senza: Keto & Fasting is marked for Barcode scanner, Macro tracking, Workout tracking. ZOZOFIT: 3D Body Scanner is not. ZOZOFIT: 3D Body Scanner is marked for Photo logging. Senza: Keto & Fasting is not. Editorial scores are 5.2 for Senza: Keto & Fasting and 5.7 for ZOZOFIT: 3D Body Scanner, on a 10-point scale. That score is not the store rating.
Price
Senza: Keto & Fasting: Free.
ZOZOFIT: 3D Body Scanner: Free · 8 in-app purchase option(s).
Monthly figure: Senza: Keto & Fasting unknown, ZOZOFIT: 3D Body Scanner $4.99.
Yearly figure: Senza: Keto & Fasting unknown, ZOZOFIT: 3D Body Scanner $29.99.
Features that differ
Photo logging: only ZOZOFIT: 3D Body Scanner is marked available. Mentioned in the App Store description.
Barcode scanner: only Senza: Keto & Fasting is marked available.
Macro tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Workout tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Fasting: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Fit
Senza: Keto & Fasting has no best-fit line.
ZOZOFIT: 3D Body Scanner has no best-fit line.
Where the scores differ
Pricing value: Senza: Keto & Fasting 10, ZOZOFIT: 3D Body Scanner 8. Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial). ZOZOFIT: 3D Body Scanner: 10 - annualised price $29.99/15 (+0.5 if free trial).
Ease of use: Senza: Keto & Fasting 5, ZOZOFIT: 3D Body Scanner 7.8. Senza: Keto & Fasting: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode). ZOZOFIT: 3D Body Scanner: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode).
Feature depth: Senza: Keto & Fasting 2.3, ZOZOFIT: 3D Body Scanner 1.9. Senza: Keto & Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. ZOZOFIT: 3D Body Scanner: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
Beginner friendliness: Senza: Keto & Fasting 7, ZOZOFIT: 3D Body Scanner 8.6. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit. ZOZOFIT: 3D Body Scanner: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Senza: Keto & Fasting 9, ZOZOFIT: 3D Body Scanner 8.4. Senza: Keto & Fasting: Bayesian rating 4.72 (iOS 4.78x10816 + Play 4.44x1907, prior 4.3x200) + review stars sentiment +0.45 over 20 reviews. ZOZOFIT: 3D Body Scanner: Bayesian rating 4.69 (iOS 4.74x8037 + Play 4.45x1503, prior 4.3x200) + review stars sentiment -0.20 over 20 reviews.
Maintenance: Senza: Keto & Fasting 1.7, ZOZOFIT: 3D Body Scanner 8.9. Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%). ZOZOFIT: 3D Body Scanner: Last release 4 days ago (half-life 90d, 70%) + median 13 days between releases (30%).
Traction: Senza: Keto & Fasting 6.8, ZOZOFIT: 3D Body Scanner 6.6. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10. ZOZOFIT: 3D Body Scanner: log10 of 9540 total ratings (iOS+Play), 1M ratings = 10.
Who should pick which
Choose Senza: Keto & Fasting if you need Barcode scanner and Macro tracking. Choose ZOZOFIT: 3D Body Scanner if you need Photo logging.