# MochiLog — Battery Health & Cycle Tracker

> Accurate iPhone battery health and cycle tracker using on-device system log analysis. (iPhone/iPad app by ryuya watanabe.)

- Source: https://appshunter.io/ios/app/mochilog/id6756904240 (this page in markdown: same URL + `.md`)
- Developer: [ryuya watanabe](https://appshunter.io/developer/1863586499)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 12 MB
- Languages: American English, Japanese
- Released: 2026-01-06
- Data updated: 2026-09-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/mochilog/id6756904240/reviews.md

## What is MochiLog?

MochiLog extracts real battery data directly from your iPhone’s system logs — no computer required.
Unlike other apps that rely on estimates, MochiLog analyzes raw analytics data to show accurate battery metrics.

【Key Features】
・Real Battery Capacity (mAh)
・True Cycle Count
・Precise Wear Level
・History Graph from Multiple Logs
・100% On-Device Processing (Privacy Safe)

## Key features

- Real battery capacity (mAh)
- True cycle count
- Precise wear level
- History graph from multiple logs
- 100% on-device processing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Buy me a lunch | $1.99 | one-time |
| Buy me a coffee | $0.99 | one-time |
| Buy me a dinner | $4.99 | one-time |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/mochilog/id6756904240/reviews.md

### 5/5 — 自動化希望

*2026-04-09*

解析ログを都度手動で登録するのが手間なので溜まっていくログを自動で取り込んでくれると嬉しいです。アプリにはとても満足してます。

### 5/5 — Useful tool

*2026-03-02*

This tool is very helpful if you want to record the history of iphone battery capacity and cycle number. I wish it could provide some explanation of different types of capacities, like nominal, raw, and low rate capacities

### 5/5 — 使いやすい

*2026-02-16*

使いやすくてめちゃいい感じ

### 5/5 — 分析

*2026-02-13*

iPhone、iPad共に分析画面で複数機器を登録していて機器を選択するとアプリが落ちます。

これは良いアプリ。
バッテリーの劣化具合を過去に遡って見られるのは良いね。

**Developer response:** 詳細なご報告ありがとうございます。
複数機器を登録している状態で分析画面から機器を選択するとクラッシュする件、こちらでも確認いたします。
ご不便をおかけし申し訳ありません。

次回のアップデートで修正します。

### 5/5 — iPadのバッテリー容量もチェックできました

*2026-02-09*

iPad Pro第二世代を使っています。この世代のiPadはAppleサポートからしかバッテリー容量を確認することができなかったのですが、このアプリのおかげで現在の容量を確認することができました。
iPhone16proとiCloud経由でデータを共有することもできて驚きです。
非常にこだわりを感じる作りで、ユーザー目線でも大変使いやすくて感心いたしました。
広告機能も全くないので、開発者を支援から応援させていただきました！

**Developer response:** 詳細なレビューをありがとうございます！
iPadで容量確認ができたとのこと、お役に立てて嬉しいです。
iCloud共有や使いやすさまで見ていただけて本当に励みになります。
ご支援もありがとうございます！
今後もアプリを改善していきます。

### 5/5 — 個人的に刺さった！

*2026-02-09*

バッテリーの最大容量の劣化具合を記録できます！

**Developer response:** レビューありがとうございます！
劣化の推移を記録できる点を評価していただけて嬉しいです。
引き続き改善していきます！

## Frequently asked questions about MochiLog

### What is MochiLog?

MochiLog is a utility app that provides accurate battery health and cycle count information for your iPhone. It analyzes your device's system logs directly on your phone, offering precise metrics without relying on estimates.

### How does MochiLog get battery data?

MochiLog extracts real battery data directly from your iPhone’s system logs. This method ensures accuracy as it analyzes raw analytics data rather than estimations.

### Is MochiLog safe to use with my data?

Yes, MochiLog prioritizes user privacy with 100% on-device processing. Your battery data is analyzed directly on your iPhone, meaning it is never sent to external servers.

### What specific battery metrics does MochiLog show?

MochiLog displays key battery metrics including real battery capacity in mAh, the true cycle count of your battery, and a precise wear level percentage.

### Can I see my battery's history with MochiLog?

Yes, MochiLog allows you to view a history graph of your battery's performance by analyzing multiple logs. This helps you track changes and trends over time.

### What devices does MochiLog support?

MochiLog is supported on watch, iPhone, and iPad devices. It is designed to work across Apple's ecosystem.

### How often is MochiLog updated?

The latest version of MochiLog is 2.2.1, which was last updated on April 27, 2026. Updates typically bring improvements and new features.

### Does MochiLog have ads?

No, MochiLog does not contain advertisements. It is a free app with optional in-app purchases.

## Version history (last 5 releases)

### 3.1.0 — 2026-06-28

* Added a manual iCloud sync button.
* Added a detailed explanation of iCloud synchronization.
* Improved the iPhone user interface.
* Fixed an issue where RAM capacity was displayed incorrectly.
* Improved data import performance.

### 3.0.0 — 2026-06-14

New Features

* Added support for log analysis of the iPhone Air MagSafe Battery.
* Added parallel loading of multiple log files (requires iOS 27.0 beta 1 or later).

Improvements

* Refreshed the iPad user interface.
* Fixed layout issues that could occur on iPad devices.

Known Issues

* Due to a current issue in iOS 27, parallel loading of multiple log files does not function correctly.
* This feature may remain unavailable until Apple resolves the underlying operating system issue.

### 2.2.1 — 2026-04-27

Fixed an issue with per-device data deletion (iPad only)
Fixed iPad layout

### 2.2.0 — 2026-03-22

• Added support for iOS 16
Note: iCloud sync is not available on iOS 16
Graph display on the analytics page is not yet supported (planned for a future update)

• Added support for new devices
・iPhone 17e
・iPad Air (M4)
・11-inch and 13-inch models

• Updated the Discord invite link to a non-expiring link

### 2.1.1 — 2026-02-20

Added device selection for log recording

A new device selection option has been added under Advanced Settings.
In addition to automatic selection, you can now choose from pre-registered devices or select a device manually.

Added Discord server link

For bug reports and feature requests, contacting us via Discord allows for faster confirmation.

UI improvements

Minor adjustments have been made to improve layout and usability.

## More apps by ryuya watanabe

- [Rytmica](https://appshunter.io/ios/app/rytmica/id6757244924)
- [MioWidget](https://appshunter.io/ios/app/miowidget/id6758489056)

All apps by ryuya watanabe: https://appshunter.io/developer/1863586499

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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 2026-09-04.*