# イージータイマー シンプルでわかりやすい！キッズタイマー vs 昭和レトロ電卓

The clearest difference is ads: 昭和レトロ電卓 at none against イージータイマー シンプルでわかりやすい！キッズタイマー's shown. イージータイマー シンプルでわかりやすい！キッズタイマー's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | イージータイマー シンプルでわかりやすい！キッズタイマー | 昭和レトロ電卓 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Ad-supported | — |
| Size | 48 MB | 28 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [yuki okada](https://appshunter.io/developer/1505937141) | [Masaki Takahashi](https://appshunter.io/developer/1860849926) |

## What reviewers say

### イージータイマー シンプルでわかりやすい！キッズタイマー

[App page](https://appshunter.io/ios/app/id6449078976)

This app offers a visual countdown timer designed for young children, using intuitive shapes and colors to represent remaining time. It helps bridge the understanding gap of time for toddlers and can be customized with different colors and shapes.

**Highlights:** Visual countdown with shapes, Color-coded time representation, Customizable shapes (circle, square, star), Customizable colors (9 options), Simple interface for children, Aids in time communication

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 昭和レトロ電卓

[App page](https://appshunter.io/ios/app/vfd/id6756614175)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is イージータイマー シンプルでわかりやすい！キッズタイマー free?

イージータイマー シンプルでわかりやすい！キッズタイマー is free to download, with no in-app purchases.

### Is 昭和レトロ電卓 free?

昭和レトロ電卓 is free to download, with no in-app purchases.

### Do イージータイマー シンプルでわかりやすい！キッズタイマー or 昭和レトロ電卓 have ads?

イージータイマー シンプルでわかりやすい！キッズタイマー shows ads; 昭和レトロ電卓 does not.

### Which is updated more often, イージータイマー シンプルでわかりやすい！キッズタイマー or 昭和レトロ電卓?

イージータイマー シンプルでわかりやすい！キッズタイマー ships an update every 5 months, and 昭和レトロ電卓 every 5 months. Most recently, イージータイマー シンプルでわかりやすい！キッズタイマー was updated on September 30, 2026 and 昭和レトロ電卓 on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*