# Tana Outliner vs HTML Previewer

The clearest difference is price: Tana Outliner at Free against HTML Previewer's $5.99. HTML Previewer's advantage is in-app purchases (none vs 4) and update cadence (every 4 days vs every 8 days). On ads, device support and iOS requirement there is nothing between them.

Tana Outliner is free to download; HTML Previewer costs $5.99 up front. Tana Outliner sells 4 in-app purchases, starting at $10.00 per month. HTML Previewer asks for nothing beyond the download.

Tana Outliner ships an update every 8 days, HTML Previewer every 4 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Tana Outliner | HTML Previewer |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.0 (50 ratings)](https://appshunter.io/ios/app/tana-outliner/id6499428869/reviews)** | — |
| Number of ratings | **50** | — |
| Positive reviews | 48.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 172 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tana](https://appshunter.io/developer/1674136345) | [SHIFENG ZHANG](https://appshunter.io/developer/1886637404) |

## What reviewers say

### Tana Outliner

[App page](https://appshunter.io/ios/app/tana-outliner/id6499428869)

This app is an AI-powered workspace designed to capture and organize your thoughts. It allows for quick idea capture, voice memo recording with transcription, and automatic organization into actionable items. Access your information on the go with advanced AI workflows available.

**Highlights:** AI-powered note-taking, Voice memo recording and transcription, Automatic organization of notes, Media uploads and text scanning, Offline note-taking, Actionable content transformation

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tana Plus Monthly | $10.00 | per month |
| Tana Pro Monthly | $17.99 | per month |
| Tana Plus Yearly | $96.00 | per year |
| Tana Pro Yearly | $167.99 | per year |


### HTML Previewer

[App page](https://appshunter.io/ios/app/html-previewer/id6785794966)

**In-app purchases:** none


## Frequently asked questions

### Is Tana Outliner free?

Tana Outliner is free to download, with in-app purchases available.

### Is HTML Previewer free?

HTML Previewer costs $5.99, with no in-app purchases.

### Do Tana Outliner or HTML Previewer have ads?

Neither Tana Outliner nor HTML Previewer shows ads.

### Which is updated more often, Tana Outliner or HTML Previewer?

Tana Outliner ships an update every 8 days, and HTML Previewer every 4 days. Most recently, Tana Outliner was updated on October 24, 2026 and HTML Previewer on October 11, 2026.

---

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