Calorie Tracker Guide · 2026-11-14
Verdict
Senza: Keto & Fasting prices as Free. Window - Intermittent Fasting prices as Free · 8 in-app purchase option(s). Senza: Keto & Fasting is marked for Barcode scanner, Macro tracking, Workout tracking. Window - Intermittent Fasting is not. Window - Intermittent Fasting is marked for Water tracking, Coach connection. Senza: Keto & Fasting is not. Editorial scores are 5.2 for Senza: Keto & Fasting and 4.7 for Window - Intermittent Fasting, on a 10-point scale. That score is not the store rating.
Price
Senza: Keto & Fasting: Free.
Window - Intermittent Fasting: Free · 8 in-app purchase option(s).
Monthly figure: Senza: Keto & Fasting unknown, Window - Intermittent Fasting $14.99.
Yearly figure: Senza: Keto & Fasting unknown, Window - Intermittent Fasting $89.99.
Features that differ
Barcode scanner: only Senza: Keto & Fasting is marked available.
Macro tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Water tracking: only Window - Intermittent 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.
Coach connection: only Window - Intermittent Fasting is marked available. Mentioned in the App Store description.
Fit
Senza: Keto & Fasting has no best-fit line.
Window - Intermittent Fasting has no best-fit line.
Where the scores differ
Pricing value: Senza: Keto & Fasting 10, Window - Intermittent Fasting 4.5. Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial). Window - Intermittent Fasting: 10 - annualised price $89.99/15 (+0.5 if free trial).
Feature depth: Senza: Keto & Fasting 2.3, Window - Intermittent Fasting 3.1. Senza: Keto & Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. Window - Intermittent Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
User feedback: Senza: Keto & Fasting 9, Window - Intermittent Fasting 5.1. Senza: Keto & Fasting: Bayesian rating 4.72 (iOS 4.78x10816 + Play 4.44x1907, prior 4.3x200) + review stars sentiment +0.45 over 20 reviews. Window - Intermittent Fasting: Bayesian rating 4.26 (iOS 4.54x10598 + Play 3.66x5068, prior 4.3x200) + review stars sentiment -0.70 over 20 reviews.
Maintenance: Senza: Keto & Fasting 1.7, Window - Intermittent Fasting 3.5. Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%). Window - Intermittent Fasting: Last release 185 days ago (half-life 90d, 70%) + median 20 days between releases (30%).
Traction: Senza: Keto & Fasting 6.8, Window - Intermittent Fasting 7. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10. Window - Intermittent Fasting: log10 of 15666 total ratings (iOS+Play), 1M ratings = 10.
Coachability: Senza: Keto & Fasting 0, Window - Intermittent Fasting 5.5. Senza: Keto & Fasting: Best quality of aiCoach / coachConnection features. Window - Intermittent Fasting: Best quality of aiCoach / coachConnection features.
Who should pick which
Choose Senza: Keto & Fasting if you need Barcode scanner and Macro tracking. Choose Window - Intermittent Fasting if you need Water tracking and Coach connection.