Calorie Tracker Guide · 2026-11-14
Verdict
Dexcom Clarity prices as Free. FastHabit Intermittent Fasting prices as Free · 2 in-app purchase option(s). FastHabit Intermittent Fasting is marked for Photo logging, Apple Health, Fasting. Dexcom Clarity is not. Editorial scores are 4.2 for Dexcom Clarity and 5.5 for FastHabit Intermittent Fasting, on a 10-point scale. That score is not the store rating.
Price
Dexcom Clarity: Free.
FastHabit Intermittent Fasting: Free · 2 in-app purchase option(s).
Features that differ
Photo logging: only FastHabit Intermittent Fasting is marked available. Mentioned in the App Store description.
Apple Health: only FastHabit Intermittent Fasting is marked available. Mentioned in the App Store description.
Fasting: only FastHabit Intermittent Fasting is marked available. Mentioned in the App Store description.
Fit
Dexcom Clarity has no best-fit line.
FastHabit Intermittent Fasting has no best-fit line.
Where the scores differ
Pricing value: Dexcom Clarity 10, FastHabit Intermittent Fasting 6.5. Dexcom Clarity: 10 - annualised price $0.00/15 (+0.5 if free trial). FastHabit Intermittent Fasting: 10 - annualised price $59.99/15 (+0.5 if free trial).
Ease of use: Dexcom Clarity 5, FastHabit Intermittent Fasting 7.8. Dexcom Clarity: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode). FastHabit Intermittent Fasting: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode).
Feature depth: Dexcom Clarity 1.1, FastHabit Intermittent Fasting 2.3. Dexcom Clarity: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. FastHabit Intermittent Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
Beginner friendliness: Dexcom Clarity 7, FastHabit Intermittent Fasting 8.6. Dexcom Clarity: 60% easeOfUse + 40% beginner skill-level fit. FastHabit Intermittent Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Dexcom Clarity 5.9, FastHabit Intermittent Fasting 8.9. Dexcom Clarity: Bayesian rating 4.31 (iOS 4.60x13153 + Play 3.87x8508, prior 4.3x200) + review stars sentiment +0.15 over 20 reviews. FastHabit Intermittent Fasting: Bayesian rating 4.74 (iOS 4.75x13905 + Play 0.00x0, prior 4.3x200) + review stars sentiment +0.05 over 20 reviews.
Maintenance: Dexcom Clarity 1.5, FastHabit Intermittent Fasting 5.2. Dexcom Clarity: Last release 312 days ago (half-life 90d, 70%) + median 78 days between releases (30%). FastHabit Intermittent Fasting: Last release 88 days ago (half-life 90d, 70%) + median 26 days between releases (30%).
Traction: Dexcom Clarity 7.2, FastHabit Intermittent Fasting 6.9. Dexcom Clarity: log10 of 21661 total ratings (iOS+Play), 1M ratings = 10. FastHabit Intermittent Fasting: log10 of 13905 total ratings (iOS+Play), 1M ratings = 10.
Who should pick which
Choose FastHabit Intermittent Fasting if you need Photo logging and Apple Health.