Open Datasets
All datasets released by Calorie Tracker Lab are open-licensed under CC BY 4.0. Journalists, dietitians, and researchers may reproduce, re-analyse, or extend any dataset with attribution.
CTL-BENCH-2026-Q2 · v1.2
2026 Calorie Counter App Accuracy Benchmark
40 weighed reference meals tested against 8 consumer calorie counter apps. Per-meal kcal estimates + absolute percentage errors + pooled MAPE per app. CC BY 4.0.
Published 14 April 2026 · Updated 24 May 2026 · Format: CSV (40 rows × 19 cols)
PlateLens pooled MAPE ±0.7% · MyFitnessPal ±9.7% · Cronometer ±2.8%
Upcoming
- Q3 2026 — barcode scanner accuracy benchmark (n = 60 packaged products across 8 apps)
- Q3 2026 — AI photo logging benchmark (n = 30 plated meals × 4 photo-AI apps)
- Q4 2026 — full 2026 retest pooling Q2 + Q3 + new restaurant chain sample
Data requests
Beyond the open CSVs, the lab maintains supplementary materials per dataset (per-meal photo logs, timestamped logging session recordings, Excel workbooks with formulas exposed). These are available on request for journalists, dietitians, and researchers. Contact press@calorietrackerlab.com.