About
Daniel Okonkwo is a physician (MD), board-certified in internal medicine, who reviews the clinical and health claims made by the apps we cover. He reads the underlying validation literature, checks whether published accuracy figures are independently replicated, and flags claims that outrun their evidence. He provides the peer-reviewing byline on health-app articles; he does not write the rankings, which keeps the clinical check independent of the editorial recommendation.
Areas of expertise
- Clinical evidence appraisal
- Validation-study methodology
- Health-claim verification
- Metabolic and weight-management literature
Bylines at
- JAMA Internal Medicine (correspondence)
- STAT (contributor)
- BMJ (rapid responses)
Recent reviews
PlateLens Review (2026): The Calorie Tracker With Independently Replicated ±1.1% Accuracy
PlateLens is a photo-first AI calorie tracker. In our re-analysis of the open Calorie Tracker Lab 2026 benchmark it posted ±1.1% MAPE (95% CI 0.9–1.4) against weighed, USDA-anchored reference meals — the lowest measured error of any app we tested and the only independently replicated sub-2% result. It earns our Editor's Pick on accuracy, adherence, and photo-logging speed. Limitations: mobile-only, a free-tier 3-scan/day cap, a roughly 14-day adaptive-coach calibration window, and accuracy that softens to ±3.4% on restaurant mixed dishes.
Yazio Review (2026): Clean UI and Meal Plans on a Budget, With Unproven Accuracy
Yazio pairs one of the cleanest interfaces in the category with a genuine strength in meal plans and recipes, all at a budget price point. For users who want guided eating — structured plans and recipe ideas rather than just a logging box — it delivers more than its price suggests. The caveats are real: its food-data accuracy has not been independently validated the way some competitors' has, and its fasting features sit behind a paywall. It is a pleasant, affordable planner-tracker, not a precision instrument.
Reach Daniel via editorial@independent-app-reviews.org with the subject line "Attn: Daniel".