定規(Ruler) vs Pocket,Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
定規(Ruler)
A straightforward measuring tool for iPhones, offering accurate measurements in both millimeters and inches. It's designed for ease of use and provides a cool, functional experience for everyday measuring needs.
- Accurate measurements
- Millimeter display
- Inch display
- Supports all iPhone sizes
- Simple interface
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シンプルな定規、mmとinch表示で全てのサイズのiPhoneで正確に測れます。カッコいいでしょ You can measure correctly in iPhone with the size of everything by simple ruler, mm and inch indication. It would be cool
Pocket,Ruler
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A practical tool for measuring the length of small items Turn your mobile phone into a portable ruler, allowing you to measure small objects at any time. More accurate than ordinary distance meters
Screenshots
Verdict
The clearest difference is ads: 定規(Ruler) at none against Pocket,Ruler's shown. Pocket,Ruler's advantage is update cadence (fortnightly vs every 6 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
定規(Ruler) ships an update every 6 months, Pocket,Ruler fortnightly. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.
| Parameter | 定規(Ruler) | Pocket,Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.6 |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | 旭 王 |
In-app purchases
定規(Ruler)
No in-app purchases
Pocket,Ruler
No in-app purchases
