# 扫描仪 vs Thrrread Go

The clearest difference is review sentiment: Thrrread Go at 100% against 扫描仪's 8%. Thrrread Go also leads on update cadence (every 5 days vs every 2 months). 扫描仪's advantage is ads (none vs shown) and iOS requirement (11.3 vs 15.1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 扫描仪 sells 4 in-app purchases, starting at $3.99 per 7 days and Thrrread Go sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

扫描仪 ships an update every 2 months, Thrrread Go every 5 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 扫描仪 | Thrrread Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/and-and/id6445968985/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 8.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 48 MB | 39 MB |
| Requires iOS | **11.3** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [姣霞 王](https://appshunter.io/developer/1667191008) | [Tomoya Kajiwara](https://appshunter.io/developer/6795143711) |

## What reviewers say

### 扫描仪

[App page](https://appshunter.io/ios/app/and-and/id6445968985)

This app uses your phone's camera to identify objects, recognize text, and measure distances. It can also scan documents, create digital copies of identification, and add watermarks for attendance tracking. Features include cloud storage for your scanned files.

**Highlights:** Object recognition from photos, OCR for text extraction, Measurement of length and distance, Document scanning to PDF, Watermark camera for attendance, ID card scanning, 256GB cloud storage

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 扫描仪-手机版 | $3.99 | per 7 days |
| 扫描仪-手机版 | $19.99 | per month |
| 扫描仪-手机版 | $49.99 | per 3 months |
| 扫描仪-手机版 | $79.99 | per 6 months |


### Thrrread Go

[App page](https://appshunter.io/ios/app/thrrread-go-thread-and-bolt/id6796997797)

Identify fastener threads from photos and measurements. Access a comprehensive reference for tap-drill sizes, bolt dimensions, and more. Ideal for workshop, DIY, and machining tasks.

**Highlights:** Identify threads from photos and measurements, Access tap-drill sizes, Compare thread dimensions, Browse fastener head dimensions, Offline core functionality, Metric and inch thread support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Threads – No Ads | $5.99 | one-time |
| Referral Edition (With Ads) | $5.99 | one-time |


## Frequently asked questions

### Is 扫描仪 free?

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

### Is Thrrread Go free?

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

### Do 扫描仪 or Thrrread Go have ads?

Thrrread Go shows ads; 扫描仪 does not.

### Which is updated more often, 扫描仪 or Thrrread Go?

扫描仪 ships an update every 2 months, and Thrrread Go every 5 days. Most recently, 扫描仪 was updated on October 24, 2026 and Thrrread Go on October 16, 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.*