# HTML Keep vs モーター回転数計

The clearest difference is update cadence: HTML Keep at every 2 days against モーター回転数計's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. HTML Keep sells 4 in-app purchases, starting at $2.99 per month and モーター回転数計 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HTML Keep ships an update every 2 days, モーター回転数計 monthly. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | HTML Keep | モーター回転数計 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/html-keep-mobile-html-viewer/id6767142789/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | Free | — |
| Size | 22 MB | 2 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [光 杨](https://appshunter.io/developer/1893576790) | [Shuhei Yamamoto](https://appshunter.io/developer/1896725589) |

## What reviewers say

### HTML Keep

[App page](https://appshunter.io/ios/app/html-keep-mobile-html-viewer/id6767142789)

Easily view local HTML, Markdown, and ZIP files on your iPhone or iPad. Import files via Share or Open In for quick previews of web pages, notes, or web packages without needing an internet connection.

**Highlights:** Open local HTML files, Native Markdown preview, Import ZIP web packages, No account or login required, No cloud dependency, Simple, fast interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HTML Pocket Pro Monthly | $2.99 | per month |
| HTML Pocket Pro Yearly | $14.99 | per year |
| HTML Pocket Premium Lifetime Promo | $14.49 | one-time |
| HTML Pocket Premium Lifetime | $29.99 | one-time |


### モーター回転数計

[App page](https://appshunter.io/ios/app/rpm/id6806788279)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| モーター回転数計 Pro | $4.99 | one-time |


## Frequently asked questions

### Is HTML Keep free?

HTML Keep is free to download, with in-app purchases available.

### Is モーター回転数計 free?

モーター回転数計 is free to download, with in-app purchases available.

### Do HTML Keep or モーター回転数計 have ads?

Neither HTML Keep nor モーター回転数計 shows ads.

### Which is updated more often, HTML Keep or モーター回転数計?

HTML Keep ships an update every 2 days, and モーター回転数計 monthly. Most recently, HTML Keep was updated on October 2, 2026 and モーター回転数計 on October 15, 2026.

---

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