# Keep Browser vs おと電卓 〜気持ちいい音と触感〜

The clearest difference is price: Keep Browser at Free against おと電卓 〜気持ちいい音と触感〜's $0.99. Keep Browser also leads on update cadence (every 6 days vs every 6 weeks) and device support (3 vs 1). おと電卓 〜気持ちいい音と触感〜's advantage is ads (none vs shown). On in-app purchases there is nothing between them.

Keep Browser is free to download; おと電卓 〜気持ちいい音と触感〜 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Keep Browser ships an update every 6 days, おと電卓 〜気持ちいい音と触感〜 every 6 weeks. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Keep Browser | おと電卓 〜気持ちいい音と触感〜 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/keep-browser-tree-tabs/id6444784668/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 6 weeks |
| Monetization | Ad-supported | — |
| Size | 145 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [RSA TECHNOLOGIES, LIMITED LIABILITY CO.](https://appshunter.io/developer/1656876758) | [KAZUYA NAKAMURA](https://appshunter.io/developer/1876809428) |

## What reviewers say

### Keep Browser

[App page](https://appshunter.io/ios/app/keep-browser-tree-tabs/id6444784668)

Organize your research and browsing with a unique tree-style tab system. Group related pages, share them across devices, and manage your research flow efficiently. Features include ad blocking, private mode, and backup options.

**Highlights:** Tree-style tab management, Tab group sharing, Keep Mode for research flow, Labels for tab groups, Ad blocking, Private browsing mode, Backup and restore

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

**In-app purchases:** none


### おと電卓 〜気持ちいい音と触感〜

[App page](https://appshunter.io/ios/app/id6785884324)

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

**In-app purchases:** none


## Frequently asked questions

### Is Keep Browser free?

Keep Browser is free to download, with no in-app purchases.

### Is おと電卓 〜気持ちいい音と触感〜 free?

おと電卓 〜気持ちいい音と触感〜 costs $0.99, with no in-app purchases.

### Do Keep Browser or おと電卓 〜気持ちいい音と触感〜 have ads?

Keep Browser shows ads; おと電卓 〜気持ちいい音と触感〜 does not.

### Which is updated more often, Keep Browser or おと電卓 〜気持ちいい音と触感〜?

Keep Browser ships an update every 6 days, and おと電卓 〜気持ちいい音と触感〜 every 6 weeks. Most recently, Keep Browser was updated on November 7, 2026 and おと電卓 〜気持ちいい音と触感〜 on November 10, 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.*