Epic Ruler vs 定規(Ruler)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Epic Ruler
Transform your smartphone into a portable measuring tool. Accurately measure lengths in both inches and centimeters directly from your device.
- Converts phone to ruler
- Measures in inches
- Measures in centimeters
- Pocket-sized utility
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This app turns your phone into a portable pocket ruler, with support for both inches and centimeters.
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
Screenshots
Verdict
The clearest difference is review sentiment: 定規(Ruler) at 80% against Epic Ruler's 0%. 定規(Ruler) also leads on rating (5.0 vs 1.0) and update cadence (every 6 months vs every 17 months). On price, ratings volume, ads and in-app purchases 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) holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 0% of Epic Ruler's written reviews are positive against 80% of 定規(Ruler)'s.
Epic Ruler ships an update every 17 months, 定規(Ruler) every 6 months. The most recent releases landed on August 11, 2026 and June 1, 2026 respectively.
| Parameter | Epic Ruler | 定規(Ruler) |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (4 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 17 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Chih-Hao Chen | Mayumi Kato |
Customer experience
Epic Ruler
定規(Ruler)
In-app purchases
Epic Ruler
No in-app purchases
定規(Ruler)
No in-app purchases
