Muscle Log: Workout & AI Coach

KAISEI OTA · Health & Fitness

Free

Chart standing · US

Not currently charting in this storefront.

About

Muscle Log is a workout tracker built around one goal: helping you stay consistent. ■ Effortless logging - Start a session in one tap from a template—your last weights and reps carry over automatically - Log on Apple Watch alone, even offline, then auto-sync to iPhone - See your progress by muscle group, personal records, and a training calendar ■ AI Personal Coach (Coach plan) - Get "today's workout" tailored to your history and goals - Chat about form, plateaus, and motivation - Receive daily meal plans with PFC (protein/fat/carb) balance - Just snap a photo of your meal to auto-log calories and nutrition - Get an automatic weekly review report every Sunday ■ Privacy - Detailed logs stay on your device. Only summaries and coach conversations go to the cloud - Meal photos are discarded right after AI analysis - You can delete your account and data anytime from within the app Note: The numbers and suggestions in this app are study aids and estimates only. They are not a substitute for medical diagnosis or treatment. The Coach plan is an auto-renewing subscription: ¥780/month or ¥7,800/year, with a 7-day free trial. Cancel anytime. Please review the following before using the app. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ App Terms of Service: https://ohtakaisei.github.io/muscletraining-legal/terms.en.html Privacy Policy: https://ohtakaisei.github.io/muscletraining-legal/privacy.en.html

What's new · 1.4.0

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.

Details

DeveloperKAISEI OTA
ReleasedJun 2026
UpdatedJun 2026
Version1.4.0
Size47.8 MB
RequiresiOS 26.2 or later
Age rating12+
LanguagesEnglish, Japanese, Korean
PriceFree
Categories Health & Fitness
Bundle IDkaiseiota.Muscletraining