Mathematical Playground vs いつでもMyiD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mathematical Playground
An educational tool for learning and teaching about 3D mathematical shapes. It offers features like measuring dimensions, cutting shapes, and coloring, making complex geometry accessible for students and educators.
- Measure length, area, distance, angles, and volume
- Cut shapes along a specified plane
- Expand shapes face by face
- Color and highlight shapes
- Handwriting and screenshot tools
- Share shape data wirelessly
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This is an educational tool that is useful for learning or teaching about three dimensional shapes in mathematics. It is recommended to not only students, but also teachers. --Abstract Features-- • Measuring length of edges, area of faces, distances or angles. Furthermore, you can get a volume of any shape. • Cutting shapes along a plane which includes three points you specify. • Expanding a shape by face by face. • Support for the Multitasking. • Calculator Gadget • Handwriting over the screen • Sharing or printing out screenshots. • Distributing the shape's data to people over WiFi or Bluetooth. • Coloring shapes • Highlighting a plane or an edge --- This app runs on devices such that Apple smartphones, tablets, personal computers, etc. that meet the following OS requirements: iOS17.6 or elder.
いつでもMyiD
This app facilitates the sending and receiving of information for a digital identity verification service. It prioritizes iPhone usability for convenient access to information and safety confirmation, especially during emergencies. Requires organizational permission and a password to use.
- Digital identity information exchange
- iPhone-optimized user experience
- Emergency safety confirmation
- Push notifications for organizational contacts
- Multi-factor authentication for initial registration
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デジタル身分証明書アプリの「MyiD」向けに情報の受発信を行うアプリです。 ＰＣの大画面ではなく、iPhoneでの操作性を重視しています。 いつでもどこでも情報を受発信する必要のある災害時の安否確認などが iPhoneでできるので、大変便利です。 【ご利用上の注意】 ※本アプリを利用するためには、所属する組織における許可・パスワードが必要です。 ※初期登録時には多要素認証が必要です。 【主な機能】 ■Push通知機能 所属組織からの連絡がPush通知で受け取れます。 ■安否確認 もしもの時の安否確認がすばやく行えます。
Screenshots
Verdict
The clearest difference is price: いつでもMyiD at Free against Mathematical Playground's $1.99. いつでもMyiD also leads on iOS requirement (13.0 vs 17.6). Mathematical Playground's advantage is review sentiment (22% vs 0%). On update cadence, ads, 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
いつでもMyiD is free to download; Mathematical Playground costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mathematical Playground ships an update every 2 months, いつでもMyiD every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Mathematical Playground | いつでもMyiD |
|---|---|---|
| Price | $1.99 | Free — better |
| Positive reviews | 22.2% of reviews — better | 0.0% of reviews |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 96 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Jun Nakashima | JSS Co., Ltd. |
Customer experience
Mathematical Playground
いつでもMyiD
In-app purchases
Mathematical Playground
No in-app purchases
いつでもMyiD
No in-app purchases
Questions
Is Mathematical Playground free?
Is いつでもMyiD free?
Do Mathematical Playground or いつでもMyiD have ads?
Which is updated more often, Mathematical Playground or いつでもMyiD?
Other comparisons
