Check whether the time of a meal and of a symptom can be set side by side, whether a note can be added and the entries exported. Automatic matches should not be presented as an established cause.
Which apps people use
These apps are mentioned in the breakdown of this job. Open each one to compare strengths and limits. The order of the list is not a ranking of fitness.
Rank 3. Review score: 72 out of 100. App Store rating: 4.7★ · 2,214 ratings
72of 100
For someone with IBS or Crohn's disease, Bowelle genuinely helps identify triggers and produces data in a format that is easy to share with a gastroenterologist. The feature set is niche but well executed, and users stick around for years.
Praised: A timeline of symptoms and food in one log that is convenient to show a gastroenterologist.
Complaints: Analytics do not find correlations automatically — you have to hunt for patterns in the data yourself.
Best for: People with IBS, Crohn's disease, and other chronic digestive disorders
Rank 30. Review score: 58 out of 100. App Store rating: 4.6★ · 2,765 ratings
58of 100
For a diabetic using a Libre or Dexcom, SNAQ genuinely helps lower A1c by connecting glucose and food data on one screen. After each major update something breaks, and users have to relearn the app.
Praised: A detailed three-hour report on glucose response to a specific meal.
Complaints: The food database is small, and user-created recipes with custom ingredients do not calculate net carbs.
Best for: Diabetics with a Libre or Dexcom continuous glucose monitor
Rank 31. Review score: 57 out of 100. App Store rating: 4.6★ · 4,034 ratings
57of 100
The only dedicated food intolerance diary in the selection rather than a calorie tracker: it helps find correlations between food and symptoms. The analysis algorithm is weak and can flag 'water' as the main trigger, and the registration flow with a nickname selection often freezes.
Praised: Helps identify real food triggers in chronic illness through a symptom diary.
Complaints: The correlation algorithm gives false positives and does not always deliver useful insights after weeks of logging.
Best for: People with IBS, food allergies, or intolerances who need a symptom log
Rank 1. Review score: 74 out of 100. App Store rating: 4.8★ · 93,490 ratings
74of 100
The most thorough free micronutrient tracker in the category: the only one that shows vitamins, minerals, and a full nutritional profile at no cost. A recent update degraded search results by pushing branded items ahead of generics, which seriously slows down daily logging.
Praised: Six years of loyal users stay for the micronutrient tracking alone. No other free app comes close.
Complaints: After the latest update, search ranks branded products above basics, so finding 'banana' now takes several screens of scrolling.
Best for: People who track vitamins and minerals, not just calories
