定規(Ruler) vs MynaApp (formerly Mynaportal)
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
MynaApp (formerly Mynaportal)
This app facilitates secure login and authentication for government and private services using your My Number Card. It also assists in setting up your My Number Card on iPhones for digital identification and various applications.
- Login and authentication
- Service access
- My Number Card setup on iPhone
- Digital identification
- Secure transactions
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"MynaApp," provided by the Digital Agency, is an application that enables identity verification using My Number Card and the addition of My Number Card functionality to smartphones. Starting in the summer of 2026, the "Mynaportal App" was updated and integrated with the features of the "Digital Identification App" and is now offered as "MynaApp." ■ Key Features 1. Identity Verification and Information Linkage with My Number Card Users can perform authentication and signing using My Number Card (physical card and smartphone), as well as share information such as name, for services provided by government agencies and private businesses. 2. Setting Up Smartphone My Number Card Users can set up "My Number Card on iPhone," which allows them to carry the functionality of their My Number Card within their iPhone. 3. Receiving Push Notifications of Notices from Government Agencies Users can receive push notifications for notices from government agencies and other organizations delivered to Mynaportal.
Screenshots
Verdict
The clearest difference is review sentiment: 定規(Ruler) at 80% against MynaApp (formerly Mynaportal)'s 10%. 定規(Ruler) also leads on rating (5.0 vs 3.0). MynaApp (formerly Mynaportal)'s advantage is update cadence (every 6 weeks vs every 6 months) and ratings volume (49 vs 2). On price, ads, in-app purchases and monetization model 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 3.0. That said, the two scores are not equally well evidenced: MynaApp (formerly Mynaportal) has 49 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of 定規(Ruler)'s written reviews are positive against 10% of MynaApp (formerly Mynaportal)'s.
定規(Ruler) ships an update every 6 months, MynaApp (formerly Mynaportal) every 6 weeks. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.
| Parameter | 定規(Ruler) | MynaApp (formerly Mynaportal) |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.0 (49 ratings) |
| Positive reviews | 80.0% of reviews — better | 9.5% of reviews |
| Number of ratings | 2 | 49 — better |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 3 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | デジタル庁 |
Customer experience
定規(Ruler)
MynaApp (formerly Mynaportal)
In-app purchases
定規(Ruler)
No in-app purchases
MynaApp (formerly Mynaportal)
No in-app purchases
Questions
Is 定規(Ruler) free?
Is MynaApp (formerly Mynaportal) free?
Which has better reviews, 定規(Ruler) or MynaApp (formerly Mynaportal)?
Do 定規(Ruler) or MynaApp (formerly Mynaportal) have ads?
Which is updated more often, 定規(Ruler) or MynaApp (formerly Mynaportal)?
Other comparisons
