Calorie Tracker Guide · 2026-11-14
Verdict
Dexcom Clarity prices as Free. Fastin: Intermittent Fasting prices as Free · 8 in-app purchase option(s). Fastin: Intermittent Fasting is marked for Apple Health, Water tracking, Workout tracking. Dexcom Clarity is not. Editorial scores are 4.2 for Dexcom Clarity and 5.2 for Fastin: Intermittent Fasting, on a 10-point scale. That score is not the store rating.
Price
Dexcom Clarity: Free.
Fastin: Intermittent Fasting: Free · 8 in-app purchase option(s).
Monthly figure: Dexcom Clarity unknown, Fastin: Intermittent Fasting $9.99.
Yearly figure: Dexcom Clarity unknown, Fastin: Intermittent Fasting $49.99.
Features that differ
Apple Health: only Fastin: Intermittent Fasting is marked available. Mentioned in the App Store description.
Water tracking: only Fastin: Intermittent Fasting is marked available. Mentioned in the App Store description.
Workout tracking: only Fastin: Intermittent Fasting is marked available. Mentioned in the App Store description.
Fasting: only Fastin: Intermittent Fasting is marked available. Mentioned in the App Store description.
Fit
Dexcom Clarity has no best-fit line.
Fastin: Intermittent Fasting has no best-fit line.
Where the scores differ
Pricing value: Dexcom Clarity 10, Fastin: Intermittent Fasting 6.7. Dexcom Clarity: 10 - annualised price $0.00/15 (+0.5 if free trial). Fastin: Intermittent Fasting: 10 - annualised price $49.99/15 (+0.5 if free trial).
Feature depth: Dexcom Clarity 1.1, Fastin: Intermittent Fasting 3.1. Dexcom Clarity: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. Fastin: Intermittent Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
User feedback: Dexcom Clarity 5.9, Fastin: Intermittent Fasting 8.5. Dexcom Clarity: Bayesian rating 4.31 (iOS 4.60x13153 + Play 3.87x8508, prior 4.3x200) + review stars sentiment +0.15 over 20 reviews. Fastin: Intermittent Fasting: Bayesian rating 4.72 (iOS 4.84x10154 + Play 4.51x4992, prior 4.3x200) + review stars sentiment -0.55 over 20 reviews.
Maintenance: Dexcom Clarity 1.5, Fastin: Intermittent Fasting 3.5. Dexcom Clarity: Last release 312 days ago (half-life 90d, 70%) + median 78 days between releases (30%). Fastin: Intermittent Fasting: Last release 185 days ago (half-life 90d, 70%) + median 19 days between releases (30%).
Traction: Dexcom Clarity 7.2, Fastin: Intermittent Fasting 7. Dexcom Clarity: log10 of 21661 total ratings (iOS+Play), 1M ratings = 10. Fastin: Intermittent Fasting: log10 of 15146 total ratings (iOS+Play), 1M ratings = 10.
Who should pick which
Choose Fastin: Intermittent Fasting if you need Apple Health and Water tracking.