# Gym Diary - Workout & Diet Log — AI Coach & Exercise Tracker

> AI fitness coach for workout and meal tracking with proactive engagement. (iPhone/iPad app by Yuki Yoshioka.)

- Source: https://appshunter.io/ios/app/gym-diary-workout-and-diet-log/id6753891350 (this page in markdown: same URL + `.md`)
- Developer: [Yuki Yoshioka](https://appshunter.io/developer/1811526661)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 60 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, European Spanish, Chinese (Traditional, Taiwan)
- Released: 2025-11-06
- Data updated: 2026-08-28
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/gym-diary-workout-and-diet-log/id6753891350/reviews.md

## What is Gym Diary?

Most fitness apps just wait for you to open them. GymDiary is different — its AI trainer reaches out to you first. The moment your logging slips, it checks in.

Workout tracking, meal and calorie logging, weight management, and a genuinely autonomous AI coach — all in one app.

Plenty of apps can generate a workout plan with AI. GymDiary's AI is fundamentally different: it doesn't hand you a plan and disappear. It watches your data, thinks for itself, and acts — a real, fully autonomous AI personal trainer.

■ Fully Autonomous AI Trainer (our signature feature)
• Notices when your activity drops and messages you first
• Warm when you need encouragement, firm when you're slipping — like a real coach
• You never have to make the first move
• 24/7 answers to your training and nutrition questions

■ Workout Tracking
• Log exercises, sets, weight, and reps in seconds
• Save go-to routines as My Sets for one-tap logging
• AI-built workouts sync straight to your schedule

■ Meal & Calorie Management
• Log breakfast, lunch, dinner, and snacks in a tap
• Snap a photo and let AI estimate calories and nutrients (Premium)
• Scan a barcode to add packaged foods instantly
• Track your protein/fat/carb (PFC) balance with clear charts

■ Weight & Body Tracking
• Record daily weight and body-fat percentage
• Spot trends at a glance with graphs
• Track progress toward your goal weight

■ Schedule & Consistency
• Plan training by day of the week
• AI-planned workouts auto-sync to your calendar
• Reminders that keep your streak alive

■ In-Depth Stats & Analysis
• Strength progression charts per exercise
• Calorie-intake trends
• Training volume by muscle group
• Weekly AI report to review your progress (Premium)

■ 8 Languages
English, Japanese, Korean, Traditional Chinese, Spanish, Brazilian Portuguese, German, and French.

■ Pricing
• Core tracking is free, forever
• Premium: $9.99/month or $49.99/year (save 56%)
• Includes a 14-day free trial

A human personal trainer costs $50–100+ per session. GymDiary gives you an AI trainer that never clocks out — for $9.99 a month.

■ Legal
Terms of Use (EULA): https://gymdiary.tokyo/ja/terms
Privacy Policy: https://gymdiary.tokyo/ja/privacy

## Key features

- Autonomous AI coach
- Workout logging
- Meal management
- Weight and body fat tracking
- Schedule synchronization
- In-depth stats and analysis

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly Plan | $9.99 | per month |
| Premium Annual Plan | $49.99 | per year |
| Premium Weekly Plan | $4.99 | per 7 days |
| Gym Diary Premium - Monthly Plan | $9.99 | per month |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/gym-diary-workout-and-diet-log/id6753891350/reviews.md

### 5/5 — ジムに通いながらのダイエットにおすすめ

*2026-07-07*

今までは筋トレ・食事管理・体重で3つのアプリを使用していたが、このアプリ1つで完結するようになった。

これだけでも便利ですが、特に筋トレのライブレコーディング機能が気に入ってます。

過去のMAX重量やMAXボリューム等がセット開始前に画面に表示されるので、過去の自分に負けないように気合いが入ります。

食事機能に関してはもう少し公式食品が増えたら良いかなと思います。それ以外は便利に使ってます。

あと食事を記録したり体重記録するたびにトレーナーが声をかけてくれるのがモチベの維持に役立って良いです！

### 5/5 — 凄く簡単でいい

*2026-06-16*

いつも二つくらいのアプリを使っていたのですが、全部まとめて記録できるのがいいと思いました。また、AIが答えてくれるので、少し迷った時にすぐ返事してくれるのがいいと思いました。トレーニング記録したら褒めてくれるのが嬉しい。

**Developer response:** いつもご利用いただきありがとうございます。
また、お褒めのお言葉大変励みになります！

これからも「使いやすく・続けられるアプリ」を目指して改善を続けていきますので、今後ともよろしくお願い致します🙇‍♂️

## Frequently asked questions about Gym Diary

### What makes GymDiary's AI coach unique?

GymDiary's AI coach is fully autonomous, meaning it reaches out to you if your activity drops, rather than waiting for you to initiate contact. It monitors your data and takes action to keep you engaged, much like a real personal trainer.

### Can I use GymDiary for free?

Yes, the core features of GymDiary are available for free forever. This includes basic workout tracking, meal logging, and weight tracking.

### What features are included in GymDiary Premium?

GymDiary Premium unlocks advanced features such as AI photo analysis for meals, weekly AI progress reports, and potentially other enhanced insights. It is available through a monthly or annual subscription.

### How much does GymDiary Premium cost?

GymDiary Premium offers two subscription options: $9.99 per month or $49.99 per year, which provides a 56% discount. Both plans include a 14-day free trial.

### Does GymDiary have ads?

The provided data does not specify if GymDiary contains advertisements. However, given its freemium model, ads are a possibility for free users.

### What languages does GymDiary support?

GymDiary supports 8 languages: English, Japanese, Korean, Traditional Chinese, Spanish, Brazilian Portuguese, German, and French, making it accessible to a global user base.

### How often is GymDiary updated?

GymDiary was last updated on June 22, 2026, with version 2.3.0. This indicates a recent update, suggesting ongoing development and support for the application.

### What is the age rating for GymDiary?

GymDiary has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in fitness tracking.

## Version history (last 5 releases)

### 2.3.3 — 2026-07-24

アプリアイコンを更新しました。
その他軽微な不具合を修正しました。

### 2.3.2 — 2026-07-09

New: “Measured Metabolism” in Stats.

Most apps show a calorie burn (TDEE) that's just a generic estimate from your age, height and weight. GymDiary is different: it measures YOUR real daily burn from your actual weight trend and meal logs — a number that's truly yours and adapts as your body does. Now you can finally see why the scale stalls.

• Stats improvements and a cleaner layout
• Minor bug fixes and stability improvements

Thanks for using GymDiary!

### 2.3.1 — 2026-07-05

Thank you for using Gym Diary — and for telling us what you wanted next. 
This update is built around the features you asked for.

■ Lock Screen Live Activity (New)
"I want to keep my streak going, but life gets busy and I forget." 
We heard this a lot — so we did something about it.

Your streak now lives right on your Lock Screen and in the Dynamic Island. 
No need to open the app — a quick glance tells you exactly where today stands.

・Haven't logged today? You'll see a countdown to the deadline (3 AM daily), so "about to break your streak" is impossible to miss.
・Your AI trainer speaks up in the moment — a gentle nudge some days, a firm kick on others.
・The second you log, it flips to "Done for today." Little wins, stacking up.
・Tap it to jump straight to logging. Catch the motivation the moment it strikes.

■ A heads-up from your AI — before your streak slips
Another one straight from your feedback: "I looked up and my streak was already gone." 
Now, if the deadline is near and you still haven't logged, your AI trainer reaches out with a reminder. 
You don't have to make the first move — your AI does.

■ A new way to start: a real conversation with your AI trainer
You told us the initial setup felt cold and mechanical. 
So we rebuilt it. Now you chat with your trainer to shape the goals and plan that fit you — and you feel like you have a coach in your corner from the very first tap.

■ A Home screen redesigned around "keeping it up"
The screen you open every day now puts your streak front and center. 
See "done today / not yet" at a glance, with logging just a tap away. 
The proof that you're sticking with it, pushing you forward daily.

■ More improvements
・Refined visuals for a cleaner, clearer look
・Various bug fixes for a smoother experience

We'll keep shaping Gym Diary together, with your voice leading the way. 
Got an idea, or something that bugs you? Tell us anytime through the app or a review — your words become our next update.

Now, today's first rep. Let's keep it going.

### 2.3.0 — 2026-06-22

・Live Recording (New Feature)
We’ve added a “Live Mode” to My Sets that lets you “record one set at a time on the spot while competing against your past self.” Compare your results to your previous session and personal best to make achieving goals and breaking records even more exciting.

・Record Any Exercise Live
You can now record not only weight × reps, but also bodyweight exercises, time (e.g., planks), and distance × time (e.g., running) in real time. You can use your favorite My Sets as is.

・Easy Tracking of Bodyweight Exercises
We’ve added a “Bodyweight” button. For exercises that don’t use weights, such as push-ups and pull-ups, you can track just the number of reps with a single tap (available in both the standard tracking screen and Live mode).

・View Progress on the Lock Screen
Streaks and deadlines are displayed on the lock screen and Dynamic Island. Tap to go directly to the weight tracking screen. Your entries are reflected immediately.

・Enhanced notifications from your trainer
Notifications from your AI trainer now include avatar images and custom sounds, making them easier to understand.

・Streamlined notifications
When you open the notifications section, all unread notifications are marked as read at once. You can hide unnecessary notifications to keep the notification badge in the header clean and uncluttered.

・Improved onboarding experience
We’ve revamped the onboarding process and pricing information to make it easier to start your free trial.

### 2.2.1 — 2026-06-09

A smoother start with our redesigned onboarding

・We've completely redesigned the first-time setup. Based on your goals and current condition, our AI now builds your training plan and weekly schedule automatically.
・Statistics and charts are now available to everyone—look back on your weight and workout history more easily than ever.
・Free AI chat is now 3 times per day (previously 3 times per month), so you can check in anytime.
・You can now switch accounts when signing in.
・The app theme now follows your device's light/dark setting automatically.
・Fixed issues around meal search and schedule creation for a smoother experience.

Thank you for using GymDiary.
We're here to support your daily progress!!

## More apps by Yuki Yoshioka

- [Calm Journal - Bubble Pop ASMR](https://appshunter.io/ios/app/calm-journal-bubble-pop-asmr/id6785101402)

All apps by Yuki Yoshioka: https://appshunter.io/developer/1811526661

## Related topics

[broco ai](https://appshunter.io/ios/topics/broco-ai) · [gymkee](https://appshunter.io/ios/topics/gymkee) · [fittrexx](https://appshunter.io/ios/topics/fittrexx)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*