定規(Ruler) vs Infinite 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
Infinite Ruler
Measure objects with precision using a digital ruler that extends beyond your screen. Choose fractional inch or centimeter units and calibrate for accuracy. Ideal for quick measurements when a physical tool isn't available.
- Fractional inch or centimeter measurement
- Adjustable precision (1/8, 1/16, 1/32 inch)
- Extendable ruler beyond screen length
- Customizable zero point
- Live distance markers
- On-device calibration
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Infinite Ruler The perfect app for when you've forgotten your tape measurer in the shed and want to know how tall your coffee mug is. Or maybe you need to settle an argument about how big your cat's head is. Measure in centimeters or fractional inches, then keep going beyond the length of one screen. • Choose 1/8, 1/16 or 1/32-inch precision • Move the zero point to start anywhere • Place A and B markers for a live distance • Continue measuring across as many ruler pages as you need • Put the scale on the left or right edge • Calibrate per phone for better real-world accuracy Your measurements and calibration values stay on your device.
Screenshots
Verdict
定規(Ruler) and Infinite Ruler both sit at 5.0 stars, but that hides the real split: 100% of Infinite Ruler's written reviews are positive against 80% of 定規(Ruler)'s. 定規(Ruler)'s advantage is iOS requirement (15.6 vs 18.2). On price, rating, ratings volume and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for 定規(Ruler) against 5.0 for Infinite Ruler. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews are what separate them: 80% of 定規(Ruler)'s written reviews are positive against 100% of Infinite Ruler's.
定規(Ruler) ships an update every 6 months, Infinite Ruler every 7 months. The most recent releases landed on October 16, 2026 and September 21, 2026 respectively.
| Parameter | 定規(Ruler) | Infinite Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 6 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.2 |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | Eric Savoie |
Customer experience
定規(Ruler)
Infinite Ruler
In-app purchases
定規(Ruler)
No in-app purchases
Infinite Ruler
No in-app purchases
Questions
Is 定規(Ruler) free?
Is Infinite Ruler free?
Which has better reviews, 定規(Ruler) or Infinite Ruler?
Do 定規(Ruler) or Infinite Ruler have ads?
Which is updated more often, 定規(Ruler) or Infinite Ruler?
Other comparisons
