# ThreadMaster vs slash

The clearest difference is in-app purchases: slash at none against ThreadMaster's 14. slash also leads on ads (none vs shown). ThreadMaster's advantage is update cadence (every 4 days vs weekly) and iOS requirement (16.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. ThreadMaster sells 14 in-app purchases, starting at $0.99 per month. slash asks for nothing beyond the download.

ThreadMaster ships an update every 4 days, slash weekly. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | ThreadMaster | slash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (11 ratings)](https://appshunter.io/ios/app/threadmaster/id6455370741/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 101 MB | 109 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Kazumasa Shimomura](https://appshunter.io/developer/1110502851) | [Kazuya Matsushita](https://appshunter.io/developer/1705158662) |

## What reviewers say

### ThreadMaster

[App page](https://appshunter.io/ios/app/threadmaster/id6455370741)

Browse multiple forums and communities with advanced features like NG filters, unread tracking, and dark mode. Save favorite threads, track browsing history, and participate in discussions. Optimized for fast, organized reading on various devices.

**Highlights:** Multi-forum browsing, NG filters (threads, boards, regex), Unread tracking, Favorites and history, Dark mode, Thumbnail and link previews, Thread creation and posting

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIPプラン | $0.99 | per month |
| VIPプラン | $9.99 | per year |
| Donation | $0.29 | one-time |
| Donation | $0.49 | one-time |
| Donation | $2.99 | one-time |
| Donation | $5.99 | one-time |
| Donation | $9.99 | one-time |
| Donation | $11.99 | one-time |
| Donation | $19.99 | one-time |
| Donation | $39.99 | one-time |
| Donation | $59.99 | one-time |
| Donation | $199.99 | one-time |
| Donation | $299.99 | one-time |
| Donation | $599.99 | one-time |


### slash

[App page](https://appshunter.io/ios/app/slash-key-ai/id6772382539)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ThreadMaster free?

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

### Is slash free?

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

### Do ThreadMaster or slash have ads?

ThreadMaster shows ads; slash does not.

### Which is updated more often, ThreadMaster or slash?

ThreadMaster ships an update every 4 days, and slash weekly. Most recently, ThreadMaster was updated on September 23, 2026 and slash on September 9, 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.*