定規(Ruler)for iPad vs MochiLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
定規(Ruler)for iPad
This free utility app functions as a precise digital ruler for iPads. It supports both millimeter and inch measurements, making it easy to measure any object directly on your device. Designed for simplicity and a cool user experience.
- Digital ruler functionality
- Millimeter measurement
- Inch measurement
- Supports all iPad sizes
- Simple and cool interface
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無料の定規アプリです。mmとinch表示で全てのサイズのiPadで正確に測れます。カッコよくて、簡単です。 A free ruler application. You can measure correctly in iPad with the size of everything by mm and inch indication. It's cool and easy.
MochiLog
This app provides accurate battery health information by analyzing your device's system logs. It offers detailed metrics like real capacity, cycle count, and wear level without needing a computer. All processing is done on-device for enhanced privacy.
- Real battery capacity (mAh)
- True cycle count
- Precise wear level
- History graph from multiple logs
- 100% on-device processing
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MochiLog helps you record battery changes using analytics files from iPhone, iPad and Apple Watch. Review capacity, cycle count, temperature and other available log data in device-specific history and charts. Import multiple files, select and delete records, and export or import your data. Optional iCloud sync shares records between devices using the same Apple Account. Automatic log collection in 4.0.0 Pair with the Mac or Windows companion to receive encrypted daily analytics files collected by your computer. Analysis and record creation happen on the mobile device. Apple Watch logs stored on an iPhone are supported. Manual import remains available without a computer. The optional Live Battery tab shows current capacity, cycle count and other available readings, with the last acquisition time. These values are not saved to history or iCloud. On-device Collection is an optional experimental feature requiring a compatible local VPN/reflector route and OS pairing. It can be enabled independently from PC Transfer. Background acquisition is attempted when permitted by the OS; execution time and frequency are not guaranteed. Requirements • Core record management: iOS/iPadOS 16 or later • iCloud sync: 17 or later • PC Transfer: 27 or later, with macOS 27 or later, or Windows 11 • On-device Collection: 17 or later. Initial pairing entirely on the device requires 27 or later and Developer Mode • Daily log collection requires an unlocked device and generated analytics data Available in Japanese, English, Simplified Chinese, Traditional Chinese, Korean, Spanish, French and German. Tips are optional. Readings are informational and do not replace Apple diagnostics or repair and warranty guidance.
Screenshots
Verdict
The clearest difference is in-app purchases: 定規(Ruler)for iPad at none against MochiLog's 3. 定規(Ruler)for iPad also leads on iOS requirement (14.1 vs 16.0). MochiLog's advantage is ads (none vs shown) and review sentiment (90% vs 60%). On price there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MochiLog sells 3 one-off in-app purchases. 定規(Ruler)for iPad asks for nothing beyond the download.
定規(Ruler)for iPad ships an update every 5 months, MochiLog every 3 weeks. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.
| Parameter | 定規(Ruler)for iPad | MochiLog |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | 90.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 14.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | ryuya watanabe |
Customer experience
定規(Ruler)for iPad
MochiLog
In-app purchases
定規(Ruler)for iPad
No in-app purchases
MochiLog
- Buy me a coffee$0.99
- Buy me a lunch$1.99
- Buy me a dinner$4.99









