# Calculator+ 秘密のブラウザとメモ vs HalfMoon Browser

The clearest difference is update cadence: Calculator+ 秘密のブラウザとメモ at every 4 days against HalfMoon Browser's every 2 weeks. HalfMoon Browser's advantage is iOS requirement (16.0 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Calculator+ 秘密のブラウザとメモ sells 1 one-off in-app purchase and HalfMoon Browser sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calculator+ 秘密のブラウザとメモ ships an update every 4 days, HalfMoon Browser every 2 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Calculator+ 秘密のブラウザとメモ | HalfMoon Browser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 1 MB | 5 MB |
| Requires iOS | 26.1 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Tomo Takahashi](https://appshunter.io/developer/1858509733) | [Kotaro Tominaga](https://appshunter.io/developer/1882987496) |

## What reviewers say

### Calculator+ 秘密のブラウザとメモ

[App page](https://appshunter.io/ios/app/calculator-plus/id6756207467)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro版 | $2.99 | one-time |


### HalfMoon Browser

[App page](https://appshunter.io/ios/app/halfmoon-browser/id6762731695)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 版へアップグレード | $1.99 | one-time |


## Frequently asked questions

### Is Calculator+ 秘密のブラウザとメモ free?

Calculator+ 秘密のブラウザとメモ is free to download, with in-app purchases available.

### Is HalfMoon Browser free?

HalfMoon Browser is free to download, with in-app purchases available.

### Do Calculator+ 秘密のブラウザとメモ or HalfMoon Browser have ads?

Neither Calculator+ 秘密のブラウザとメモ nor HalfMoon Browser shows ads.

### Which is updated more often, Calculator+ 秘密のブラウザとメモ or HalfMoon Browser?

Calculator+ 秘密のブラウザとメモ ships an update every 4 days, and HalfMoon Browser every 2 weeks. Most recently, Calculator+ 秘密のブラウザとメモ was updated on October 2, 2026 and HalfMoon Browser on October 9, 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.*