# AAサイトビューア vs threadpd

The clearest difference is in-app purchases: AAサイトビューア at none against threadpd's 3. AAサイトビューア also leads on update cadence (every 3 days vs weekly) and iOS requirement (11.0 vs 17.0). threadpd's advantage is review sentiment (66% vs 50%). On price, ads and device support there is nothing between them.

Both are free to download. threadpd sells 3 in-app purchases, starting at $0.99 per month. AAサイトビューア asks for nothing beyond the download.

AAサイトビューア ships an update every 3 days, threadpd weekly. The most recent releases landed on July 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | AAサイトビューア | threadpd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/threadpd/id6470347919/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 50.0% of reviews | **65.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | **Ad-supported** | Freemium |
| Size | 66 MB | 23 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Takashi Yamamoto](https://appshunter.io/developer/1601247780) | [Kazuki Nakashima](https://appshunter.io/developer/1671411033) |

## What reviewers say

### AAサイトビューア

[App page](https://appshunter.io/ios/app/aa/id1601247778)

This app extracts and digitizes responses from publicly available AA sites. It offers flexible character encoding support for correct display and is optimized for easy and enjoyable reading of AA sites. Content cannot be copied or reposted.

**Highlights:** Extracts AA site responses, Digitizes content, Flexible character encoding support, Optimized for easy reading, Content cannot be copied

**In-app purchases:** none


### threadpd

[App page](https://appshunter.io/ios/app/threadpd/id6470347919)

Enhance your forum browsing with customizable themes, efficient unread thread management, and advanced search capabilities. Quickly access favorites, view media thumbnails, and save content for offline enjoyment. Receive notifications for replies to your posts and manage data usage.

**Highlights:** Customizable theme colors, Unread thread management, Favorites function, Advanced media display and playback, Powerful in-thread search, Media download, Data save feature, Regex NG feature, Anchor notification feature

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| threadpd Monthly Subscription | $0.99 | per month |
| Have a Drink on Me | $2.99 | one-time |
| Hearty BBQ Platter | $9.99 | one-time |


## Frequently asked questions

### Is AAサイトビューア free?

AAサイトビューア is free to download, with no in-app purchases.

### Is threadpd free?

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

### Do AAサイトビューア or threadpd have ads?

Both AAサイトビューア and threadpd show ads.

### Which is updated more often, AAサイトビューア or threadpd?

AAサイトビューア ships an update every 3 days, and threadpd weekly. Most recently, AAサイトビューア was updated on July 19, 2026 and threadpd on September 22, 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.*