Jisoo Park, MSc Data Science

About Jisoo

Jisoo Park leads benchmarking at The Calorie Tracker Guide. With an MSc in Data Science and a background building measurement pipelines for consumer apps in Seoul, he is responsible for turning thousands of logged meals into defensible, reproducible scores.

Jisoo built the harness that times logging workflows, measures barcode hit rates across US, UK, and Asian retailers, and computes Mean Absolute Percentage Error against weighed reference values with bootstrap confidence intervals. If a number appears on this site, Jisoo can show you how it was produced.

He writes our database and accuracy deep-dives and maintains the public methodology so that any reader can challenge or reproduce our results.

What Jisoo is responsible for

• Owns the benchmarking harness and statistical methods
• Runs accuracy, barcode, and database testing
• Maintains reproducibility and the public methodology

App reviews by Jisoo

• MacroFactor review
• MyFitnessPal review
• Lifesum review
• FatSecret review
• SnapCalorie review

Articles by Jisoo

• Welling AI vs SnapCalorie: which photo calorie tracker is better in 2026? · Comparison
• How we benchmarked calorie trackers on 8,500 meals and food photos · Research
• What is the best AI calorie tracker in 2026? · Best of · AI trackers
• What are the most accurate calorie tracking apps in 2026? · Best of · Accuracy
• What is the best free calorie tracking app in 2026? · Best of · Free
• What is the best calorie tracker for macro tracking in 2026? · Best of · Macros
• What are the best Cronometer alternatives in 2026? · Alternatives
• Welling AI vs Cronometer: which calorie tracker is right for you in 2026? · Comparison
• Welling AI vs MacroFactor: which is the better macro tracker in 2026? · Comparison
• Welling AI vs Cal AI: which AI calorie tracker is better in 2026? · Comparison
• MyFitnessPal vs Cronometer: which calorie tracker wins in 2026? · Comparison
• What are the best Cal AI alternatives in 2026? · Alternatives