# YUDU Proofing App vs GS1 Leb

The clearest difference is update cadence: GS1 Leb at every 3 weeks against YUDU Proofing App's every 3 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for YUDU Proofing App against 5.0 for GS1 Leb. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

YUDU Proofing App ships an update every 3 months, GS1 Leb every 3 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | YUDU Proofing App | GS1 Leb |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/yudu-proofing-app/id455020728/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/gs1-leb/id6502595683/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 21 MB | 37 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [YUDU Ltd](https://appshunter.io/developer/363773495) | [Nascode](https://appshunter.io/developer/1438111194) |

## 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


### GS1 Leb

[App page](https://appshunter.io/ios/app/gs1-leb/id6502595683)

Scan GS1 barcodes to instantly access detailed product and company information. Connect with support services for further assistance. Streamline your barcode scanning and information retrieval.

**Highlights:** Scan GS1 barcodes, Retrieve company information, Access product details, Connect with support services, Streamline barcode scanning

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

**In-app purchases:** none


## Frequently asked questions

### Is YUDU Proofing App free?

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

### Is GS1 Leb free?

GS1 Leb is free to download, with no in-app purchases.

### Which has better reviews, YUDU Proofing App or GS1 Leb?

YUDU Proofing App and GS1 Leb are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do YUDU Proofing App or GS1 Leb have ads?

Neither YUDU Proofing App nor GS1 Leb shows ads.

### Which is updated more often, YUDU Proofing App or GS1 Leb?

YUDU Proofing App ships an update every 3 months, and GS1 Leb every 3 weeks. Most recently, YUDU Proofing App was updated on November 1, 2026 and GS1 Leb on November 4, 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.*