# MyBIG3 - Workout Log App — Easy BIG3 Tracking & Analysis

> Workout log app for tracking bench press, squat, and deadlift progress. (iPhone/iPad app by Kengo Saito.)

- Source: https://appshunter.io/ios/app/mybig3-workout-log-app/id6745771123 (this page in markdown: same URL + `.md`)
- Developer: [Kengo Saito](https://appshunter.io/developer/1422383520)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 12 MB
- Languages: American English, Japanese
- Released: 2025-05-15
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/mybig3-workout-log-app/id6745771123/reviews.md

## What is MyBIG3?

Master the BIG3 with a Simple Yet Serious Workout Tracking App!

This workout tracking app is specialized for the three core lifts: bench press, squat, and deadlift
With a minimal and intuitive design, you can quickly log and analyze your progress.
Visualize your daily gains with numbers and graphs to stay motivated and focused.

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App Features
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■ Dedicated BIG3 Training Logs
By focusing only on bench press, squat, and deadlift, both operation and data management stay simple.
A custom keyboard ensures smooth input, and your 1RM is automatically calculated.

■ In-Depth Workout Analysis with Multiple Metrics
Track your progress with various indicators such as max weight, total reps, and average 1RM.
See your improvement at a glance through visual graph transitions.

■ Export and Share Workout Summaries as Images
Generate a visual summary of your daily workout.
Perfect for reviewing your progress or sharing on social media.


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In-App Purchases
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● Premium Plan
Unlock the following benefits:
・Ad-free experience
・Access to all features

● Cancellation and Refunds
Cancellations and refunds are not available for one-time purchases.


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Terms of Service & Privacy Policy
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● Terms of Service
https://www.sakes9.com/terms/en/terms-of-service

● Privacy Policy
https://www.sakes9.com/terms/en/privacy-policy

## Key features

- Dedicated BIG3 training logs
- Automatic 1RM calculation
- In-depth workout analysis
- Visual progress graphs
- Exportable workout summaries
- Custom keyboard for smooth input

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Features | $2.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/mybig3-workout-log-app/id6745771123/reviews.md

### 5/5 — シンプルで使いやすい

*2026-03-14*

シンプルで入力しやすく、コピーや1RM換算などの必要十分な機能も揃っててとても使いやすいです
RPEも入れられるモード(1RMもRPEありに対応)があれば理想で、もしあれば有料でも追加課金します！

### 5/5 — 操作が簡単で使いやすい

*2026-03-04*

分析の画面の上段に表示される各種目の最大1rmと合計重量が変わらない?のとアプリを起動する時のアニメーションが長いのが少しだけ気になります
とは言えこのままでも十分満足なので星5です

2026/03/05追記です
各種目の最大1rmと合計重量が上手く表示されるようになりました
アニメーションもスムーズで良い感じです
対応ありがとうございます
パーフェクト星5です

**Developer response:** レビューありがとうございます！
分析結果が変わらないバグを修正しました！ご報告いただき助かりました。
あと、アプリ起動時のアニメーションも短くしたので、サクッと使えるようになりました。
これからもよろしくお願いします！

## Frequently asked questions about MyBIG3

### What is MyBIG3 primarily used for?

MyBIG3 is a specialized workout tracking app designed to help users log and analyze their progress specifically for the three core powerlifting exercises: bench press, squat, and deadlift. It focuses on simplifying the logging process and providing clear insights into your strength gains.

### How does MyBIG3 calculate 1RM?

MyBIG3 automatically calculates your One Rep Max (1RM) based on the weight and reps you log for your BIG3 exercises. This feature helps you easily track your maximum strength potential without needing to perform actual 1RM tests frequently.

### Can I see my progress over time with MyBIG3?

Yes, MyBIG3 offers in-depth workout analysis with multiple metrics, including max weight, total reps, and average 1RM. You can visualize your improvement at a glance through dynamic graph transitions, helping you stay motivated.

### What are the benefits of the Premium Plan in MyBIG3?

The Premium Plan in MyBIG3 offers an ad-free experience and unlocks access to all features within the app. This provides a more focused and comprehensive tracking and analysis experience for dedicated users.

### Does MyBIG3 have ads?

Yes, MyBIG3 contains advertisements. Users can opt for the Premium Plan to remove ads and gain access to all features for an uninterrupted experience.

### Can I share my workout summaries from MyBIG3?

Yes, MyBIG3 allows you to export and share your workout summaries as images. This feature is perfect for reviewing your progress or sharing your achievements on social media platforms.

### What devices is MyBIG3 available on?

MyBIG3 is currently supported on iPhone devices. The app is designed with a minimal and intuitive interface for a smooth user experience on iOS.

### How often is MyBIG3 updated?

MyBIG3 was last updated on March 2, 2026, with version 1.4.1. This indicates a commitment to ongoing development and improvements for the application.

## Version history (last 5 releases)

### 1.4.1 — 2026-03-02

Bug fixes and improvements.

### 1.4.0 — 2026-02-06

We’ve improved the app’s internal processing.

### 1.3.2 — 2026-01-25

We’ve improved the app’s internal processing.

### 1.3.1 — 2025-12-24

We improved the app’s internal processing.

### 1.3.0 — 2025-12-21

We’ve improved the app’s design to make it even easier to use!

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## More apps by Kengo Saito

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All apps by Kengo Saito: https://appshunter.io/developer/1422383520

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*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 2026-08-26.*