# ThreadBook vs AcuSpark2

The clearest difference is price: AcuSpark2 at Free against ThreadBook's $14.99. AcuSpark2 also leads on iOS requirement (15.0 vs 17.1). ThreadBook's advantage is rating (4.2 vs 2.7) and review sentiment (66% vs 33%). On ads, in-app purchases, monetization model and device support there is nothing between them.

AcuSpark2 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 2.7. That said, the two scores are not equally well evidenced: ThreadBook has 52 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 66% of ThreadBook's written reviews are positive against 33% of AcuSpark2's.

ThreadBook ships an update monthly, AcuSpark2 every 8 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ThreadBook | AcuSpark2 |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | **[4.2 (52 ratings)](https://appshunter.io/ios/app/threadbook/id1473738358/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/acuspark2/id6444468468/reviews) |
| Number of ratings | **52** | 3 |
| Positive reviews | **65.9% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Free | Free |
| Best chart rank | **#199** | — |
| Size | 138 MB | 72 MB |
| Requires iOS | 17.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Software Miracles](https://appshunter.io/developer/455553681) | [JANOME Corporation](https://appshunter.io/developer/663694195) |

## What reviewers say

### ThreadBook

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

**Currently charting:** #199 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


### AcuSpark2

[App page](https://appshunter.io/ios/app/acuspark2/id6444468468)

This app guides you through using your sewing machine with clear instructions and helpful tips. It can scan QR codes on your machine to provide specific guidance and inspiration, even without a connected device.

**Highlights:** Sewing machine usage instructions, QR code scanning for machine status, Step-by-step sewing method videos, Presser foot descriptions, Stitch chart, Multilingual support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ThreadBook free?

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

### Is AcuSpark2 free?

AcuSpark2 is free to download, with no in-app purchases.

### Which has better reviews, ThreadBook or AcuSpark2?

ThreadBook is rated higher. ThreadBook averages 4.2 out of 5 from 52 ratings, while AcuSpark2 averages 2.7 from 3 ratings.

### Do ThreadBook or AcuSpark2 have ads?

Neither ThreadBook nor AcuSpark2 shows ads.

### Which is updated more often, ThreadBook or AcuSpark2?

ThreadBook ships an update monthly, and AcuSpark2 every 8 months. Most recently, ThreadBook was updated on October 7, 2026 and AcuSpark2 on October 1, 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.*