Calorie Tracker Guide · 2026-11-14
Verdict
Dexcom Clarity prices as Free. Fasting Tracker by Numify prices as Free · 8 in-app purchase option(s). Fasting Tracker by Numify is marked for Fasting. Dexcom Clarity is not. Editorial scores are 4.2 for Dexcom Clarity and 5.3 for Fasting Tracker by Numify, on a 10-point scale. That score is not the store rating.
Price
Dexcom Clarity: Free.
Fasting Tracker by Numify: Free · 8 in-app purchase option(s).
Features that differ
Fasting: only Fasting Tracker by Numify is marked available. Mentioned in the App Store description.
Fit
Dexcom Clarity has no best-fit line.
Fasting Tracker by Numify has no best-fit line.
Where the scores differ
Pricing value: Dexcom Clarity 10, Fasting Tracker by Numify 6.7. Dexcom Clarity: 10 - annualised price $0.00/15 (+0.5 if free trial). Fasting Tracker by Numify: 10 - annualised price $49.99/15 (+0.5 if free trial).
Feature depth: Dexcom Clarity 1.1, Fasting Tracker by Numify 1.9. Dexcom Clarity: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. Fasting Tracker by Numify: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
User feedback: Dexcom Clarity 5.9, Fasting Tracker by Numify 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. Fasting Tracker by Numify: Bayesian rating 4.69 (iOS 4.71x5942 + Play 0.00x0, prior 4.3x200) + review stars sentiment -0.05 over 20 reviews.
Maintenance: Dexcom Clarity 1.5, Fasting Tracker by Numify 7.9. Dexcom Clarity: Last release 312 days ago (half-life 90d, 70%) + median 78 days between releases (30%). Fasting Tracker by Numify: Last release 16 days ago (half-life 90d, 70%) + median 23 days between releases (30%).
Traction: Dexcom Clarity 7.2, Fasting Tracker by Numify 6.3. Dexcom Clarity: log10 of 21661 total ratings (iOS+Play), 1M ratings = 10. Fasting Tracker by Numify: log10 of 5942 total ratings (iOS+Play), 1M ratings = 10.
Who should pick which
Choose Fasting Tracker by Numify if you need Fasting.