# YUDU Proofing App vs TrackJack

The clearest difference is review sentiment: YUDU Proofing App at 100% against TrackJack's 0%. TrackJack's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

YUDU Proofing App ships an update every 3 months, TrackJack every 6 weeks. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | YUDU Proofing App | TrackJack |
| --- | --- | --- |
| 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** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 21 MB | 19 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUDU Ltd](https://appshunter.io/developer/363773495) | [TrackJack Europe B.V.](https://appshunter.io/developer/766564291) |

## 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


### TrackJack

[App page](https://appshunter.io/ios/app/trackjack/id766564288)

Access all your vehicle or fleet details from anywhere. View real-time locations, speeds, trip summaries, distances, and more. This user-friendly app brings the power of your online account to your fingertips.

**Highlights:** Real-time vehicle locations, Trip overviews and animations, Distance and hour summaries, Alarm notifications, Account and system settings, Fleet management

**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 TrackJack free?

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

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

Neither YUDU Proofing App nor TrackJack shows ads.

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

YUDU Proofing App ships an update every 3 months, and TrackJack every 6 weeks. Most recently, YUDU Proofing App was updated on October 5, 2026 and TrackJack on October 8, 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.*