# ScreenSaverTool vs ThreadBook

The clearest difference is price: ScreenSaverTool at Free against ThreadBook's $14.99. ScreenSaverTool also leads on iOS requirement (13.0 vs 17.1). ThreadBook's advantage is rating (4.2 vs 1.7) and review sentiment (66% vs 25%). On ads, in-app purchases, monetization model and device support there is nothing between them.

ScreenSaverTool is free to download; ThreadBook costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ThreadBook holds the better App Store score, 4.2 against 1.7. That said, the two scores are not equally well evidenced: ThreadBook has 52 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 25% of ScreenSaverTool's written reviews are positive against 66% of ThreadBook's.

ScreenSaverTool ships an update every 11 months, ThreadBook monthly. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | ScreenSaverTool | ThreadBook |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [1.7 (7 ratings)](https://appshunter.io/ios/app/screensavertool/id918409013/reviews) | **[4.2 (52 ratings)](https://appshunter.io/ios/app/threadbook/id1473738358/reviews)** |
| Number of ratings | 7 | **52** |
| Positive reviews | 25.0% of reviews | **65.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Best chart rank | — | **#189** |
| Size | 1 MB | 138 MB |
| Requires iOS | **13.0** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JANOME Corporation](https://appshunter.io/developer/663694195) | [Software Miracles](https://appshunter.io/developer/455553681) |

## What reviewers say

### ScreenSaverTool

[App page](https://appshunter.io/ios/app/screensavertool/id918409013)

Easily set custom screen saver images for your Janome sewing machine using your iOS device. Upload photos from your camera or camera roll, edit them, and send them wirelessly to personalize your machine's display.

**Highlights:** Set screen saver images wirelessly, Use photos from camera or camera roll, Image editing tools, Time display setting, Preview function, Compatible with specific Janome models

**In-app purchases:** none


### ThreadBook

[App page](https://appshunter.io/ios/app/threadbook/id1473738358)

**Currently charting:** #189 Top Paid · Lifestyle (US App Store)

Manage your sewing, needlework, and embroidery threads with a comprehensive digital library. Track your existing threads, create shopping lists, and find perfect color matches using advanced search or your device's camera. Instantly convert thread colors between brands and types.

**Highlights:** Extensive thread library (50,000+ threads), Track 'My Threads' and 'Shopping List', Search by thread number or color, Color matching via camera or photo, Instant cross-brand thread conversion, Automatic library updates, Cross-device synchronization

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

**In-app purchases:** none


## Frequently asked questions

### Is ScreenSaverTool free?

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

### Is ThreadBook free?

ThreadBook costs $14.99, with no in-app purchases.

### Which has better reviews, ScreenSaverTool or ThreadBook?

ThreadBook is rated higher. ScreenSaverTool averages 1.7 out of 5 from 7 ratings, while ThreadBook averages 4.2 from 52 ratings.

### Do ScreenSaverTool or ThreadBook have ads?

Neither ScreenSaverTool nor ThreadBook shows ads.

### Which is updated more often, ScreenSaverTool or ThreadBook?

ScreenSaverTool ships an update every 11 months, and ThreadBook monthly. Most recently, ScreenSaverTool was updated on October 1, 2026 and ThreadBook on September 28, 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.*