# YUDU Proofing App vs ScanAce

The clearest difference is in-app purchases: YUDU Proofing App at none against ScanAce's 2. YUDU Proofing App also leads on iOS requirement (14.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ScanAce sells 2 in-app purchases, starting at $49.99 per month. YUDU Proofing App asks for nothing beyond the download.

YUDU Proofing App ships an update every 3 months, ScanAce every 4 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | YUDU Proofing App | ScanAce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/yudu-proofing-app/id455020728/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 21 MB | 106 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUDU Ltd](https://appshunter.io/developer/363773495) | [ITS Geo Solutions GmbH](https://appshunter.io/developer/1362963860) |

## What reviewers say

### YUDU Proofing App

[App page](https://appshunter.io/ios/app/yudu-proofing-app/id455020728)

Preview and test interactive digital publications on your mobile device before they go live. Enhance pages with multimedia and links, then mark them as proofed for publishing.

**Highlights:** View interactive digital editions, Test multimedia enhancements, Mark editions as proofed, Sync with YUDU Publisher, Publish live editions

**In-app purchases:** none


### ScanAce

[App page](https://appshunter.io/ios/app/scanace/id1545231520)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional - Monthly | $49.99 | per month |
| Professional - Annual | $399.99 | per year |


## Frequently asked questions

### Is YUDU Proofing App free?

YUDU Proofing App is free to download, with no in-app purchases.

### Is ScanAce free?

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

### Do YUDU Proofing App or ScanAce have ads?

Neither YUDU Proofing App nor ScanAce shows ads.

### Which is updated more often, YUDU Proofing App or ScanAce?

YUDU Proofing App ships an update every 3 months, and ScanAce every 4 months. Most recently, YUDU Proofing App was updated on October 5, 2026 and ScanAce on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*