定規(Ruler)for iPad vs Life
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
Read full descriptionHide full description
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.
Life
Transform your smartphone into a precise measuring tool. This utility app allows you to measure lengths and distances directly on your screen. It's a convenient digital ruler for everyday tasks.
- Smartphone as a ruler
- Measure lengths
- Digital measuring tool
- Precise measurements
Read full descriptionHide full description
This app turns your smartphone into a ruler.
Screenshots
Verdict
The clearest difference is review sentiment: Life at 100% against 定規(Ruler)for iPad's 60%. Life also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). 定規(Ruler)for iPad's advantage is iOS requirement (14.1 vs 18.0). On price, in-app purchases and device support 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)for iPad ships an update every 5 months, Life every 3 weeks. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.
| Parameter | 定規(Ruler)for iPad | Life |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.3 (7 ratings) — better |
| Positive reviews | 60.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 7 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 14.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | Jumpei Adachi |
Customer experience
定規(Ruler)for iPad
Life
In-app purchases
定規(Ruler)for iPad
No in-app purchases
Life
No in-app purchases
