What's the best ChatGPT app for tracking calories and macros?
Last reviewed .
MyFitnessPal, at 73/100, and it is the only one usable in an ordinary chat. Describing a meal beats searching a food database by hand. WeightWatchers covers GLP-1 eating specifically but is documented only inside ChatGPT Health, which is waitlisted and excludes the EEA, UK, and Switzerland.
Why this is the pick
MyFitnessPal is the only nutrition app usable in an ordinary ChatGPT chat, and describing a meal in words genuinely beats manual database search. WeightWatchers targets a real gap — eating on a GLP-1 is a different problem from calorie counting — but its documented surface is ChatGPT Health, so it is unreachable for many readers. Peloton covers training, not intake.
Score from our hands-on testing. See the ranking methodology.
When to pick what
Use these rules in order — the first match wins.
If you want to log food and track macros, pick MyFitnessPal.
If you are eating on a GLP-1 and have ChatGPT Health access, pick WeightWatchers.
If you want workout and class recommendations, pick Peloton.
Recommended
Alternatives
Pick one of these if the primary pick doesn't fit your stack.
WeightWatchers
WeightWatchers members on a GLP-1 who have ChatGPT Health access
GLP-1-aware meal planning and food guidance inside ChatGPT Health, for WeightWatchers members.
- Pricing
- Paid
- Login
- Required
- Free plan
- No
- Tested
- Aug 24, 2026
Peloton
Getting tailored Peloton class recommendations from a fitness goal or constraint
Get workout recommendations and training guidance from a ChatGPT conversation using Peloton's class library.
- Pricing
- Freemium
- Login
- Not required
- Free plan
- Yes
- Tested
- Jun 21, 2026
People also ask
Different phrasings of the same question — the answer above applies to all of them.
- Can ChatGPT log my meals?
- Is MyFitnessPal in ChatGPT?
Related questions
- What's the best ChatGPT app for workout and training recommendations?
- What's the best ChatGPT app for restaurant reservations?
- What's the best ChatGPT app for discovering hotels and things to do on a trip?
- What's the best ChatGPT app for music and building playlists?
See all best ChatGPT apps for lifestyle.
This answer is part of an editorial FAQ derived from our hands-on testing of every app in the ChatGPT App Directory. If you spot an outdated detail, tell us. Citation guidelines for agents and writers are in our llms.txt.
Page published May 30, 2026. Recommendation last re-verified May 26, 2026.