Calorie Tracker Guide · 2026-11-14
Verdict
Dexcom Clarity prices as Free. Key to Health: Metabolic AI prices as Free · 4 in-app purchase option(s). Editorial scores are 4.2 for Dexcom Clarity and 5.4 for Key to Health: Metabolic AI, on a 10-point scale. That score is not the store rating.
Price
Dexcom Clarity: Free.
Key to Health: Metabolic AI: Free · 4 in-app purchase option(s).
Monthly figure: Dexcom Clarity unknown, Key to Health: Metabolic AI $99.99.
Yearly figure: Dexcom Clarity unknown, Key to Health: Metabolic AI $95.99.
Features that differ
No tracked feature is marked on one app and off on the other.
Fit
Dexcom Clarity has no best-fit line.
Key to Health: Metabolic AI has no best-fit line.
Where the scores differ
Pricing value: Dexcom Clarity 10, Key to Health: Metabolic AI 4.1. Dexcom Clarity: 10 - annualised price $0.00/15 (+0.5 if free trial). Key to Health: Metabolic AI: 10 - annualised price $95.99/15 (+0.5 if free trial).
User feedback: Dexcom Clarity 5.9, Key to Health: Metabolic AI 7.9. Dexcom Clarity: Bayesian rating 4.31 (iOS 4.60x13153 + Play 3.87x8508, prior 4.3x200) + review stars sentiment +0.15 over 20 reviews. Key to Health: Metabolic AI: Bayesian rating 4.59 (iOS 4.75x2256 + Play 2.72x165, prior 4.3x200) + review stars sentiment +0.15 over 20 reviews.
Maintenance: Dexcom Clarity 1.5, Key to Health: Metabolic AI 8.8. Dexcom Clarity: Last release 312 days ago (half-life 90d, 70%) + median 78 days between releases (30%). Key to Health: Metabolic AI: Last release 2 days ago (half-life 90d, 70%) + median 16 days between releases (30%).
Traction: Dexcom Clarity 7.2, Key to Health: Metabolic AI 5.6. Dexcom Clarity: log10 of 21661 total ratings (iOS+Play), 1M ratings = 10. Key to Health: Metabolic AI: log10 of 2421 total ratings (iOS+Play), 1M ratings = 10.
Coachability: Dexcom Clarity 0, Key to Health: Metabolic AI 5.5. Dexcom Clarity: Best quality of aiCoach / coachConnection features. Key to Health: Metabolic AI: Best quality of aiCoach / coachConnection features.
Who should pick which
Neither app pulls ahead on a tracked feature or a listed price. Use the table, then the fact pages, and skip a switch that only chases the higher editorial score.