# INISAFE Mail vs HTML Viewer+

The clearest difference is review sentiment: HTML Viewer+ at 100% against INISAFE Mail's 0%. INISAFE Mail's advantage is iOS requirement (11.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

INISAFE Mail ships an update every 4 months, HTML Viewer+ every 2 months. The most recent releases landed on June 5, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | INISAFE Mail | HTML Viewer+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/inisafe-mail/id447572293/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 6 MB | 26 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INITECH INC.](https://appshunter.io/developer/447572296) | [minyeong kim](https://appshunter.io/developer/1834144530) |

## What reviewers say

### INISAFE Mail

[App page](https://appshunter.io/ios/app/inisafe-mail/id447572293)

This program allows users to view secure emails on their smartphones. It is designed for secure mail viewing on mobile devices.

**Highlights:** Secure email viewing, Mobile access to secure mail, Smartphone compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### HTML Viewer+

[App page](https://appshunter.io/ios/app/html-viewer-plus/id6754694568)

View HTML files directly on your iPhone without needing a PC. Securely open password-protected documents and convert them to PDF. Supports dark and light modes with in-page search.

**Highlights:** Open HTML files directly from File App, Mail, Outlook, Support for secure, password-protected HTML files, Display text, images, and styles as original, Convert and share HTML to PDF, In-page search with word highlighting, Dark and light mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is INISAFE Mail free?

INISAFE Mail is free to download, with no in-app purchases.

### Is HTML Viewer+ free?

HTML Viewer+ is free to download, with no in-app purchases.

### Do INISAFE Mail or HTML Viewer+ have ads?

Neither INISAFE Mail nor HTML Viewer+ shows ads.

### Which is updated more often, INISAFE Mail or HTML Viewer+?

INISAFE Mail ships an update every 4 months, and HTML Viewer+ every 2 months. Most recently, INISAFE Mail was updated on June 5, 2026 and HTML Viewer+ on September 23, 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.*