課金なしで広告なしもなし!
AIコーチについても無料でも十分使えると思う。
強いて言うなら、重量を変更する時に若干重くなる時がある?くらい。

Track your gym and home workouts with effortless logging and progress visualization. An AI coach offers personalized workout plans, meal suggestions, and form guidance. Enjoy privacy-focused data storage and meal photo analysis.
1.4.0
June 24, 2026
New Sleep Tracking (Premium): measure heart rate, HRV, and sleep stages on Apple Watch, with a nightly sleep score, sleep bank, and readiness index. Plus a daily Recovery coaching card, finer muscle targeting (e.g., upper chest) with a body map, shareable achievement cards.
MoreThree AI coaches support you 24/7.
Muscle Log is a workout tracker designed to help users stay consistent with their fitness routines. It offers features like effortless logging, progress visualization, and an AI personal coach for tailored guidance.
No, Muscle Log does not contain advertisements. The app offers a free tier for basic tracking and an optional subscription for advanced AI coaching features.
Muscle Log is available on Apple Watch, iPhone, and iPad, allowing users to log workouts seamlessly across their devices.
The AI Personal Coach provides daily workout suggestions based on your history and goals, offers chat support for form and motivation, and generates daily meal plans with PFC balance. It also provides a weekly review report.
The AI Coach plan is available as a subscription with a 7-day free trial. Options include monthly at ¥780 or yearly at ¥7,800. You can cancel the subscription at any time.
Yes, Muscle Log prioritizes privacy. Detailed workout logs are stored on your device, and only summaries and coach conversations are sent to the cloud. Meal photos are discarded after AI analysis.
The latest version of Muscle Log is 1.4.0, which was last updated on June 24, 2026. Updates typically include new features, bug fixes, and performance improvements.
Muscle Log has an age rating of 12+, making it suitable for teenagers and adults interested in fitness tracking and guidance.