# VU vs Underlay

The clearest difference is ads: Underlay at none against VU's shown. VU's advantage is update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. VU sells 2 in-app purchases, starting at $2.99 per 7 days and Underlay sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

VU ships an update weekly, Underlay every 3 weeks. The most recent releases landed on September 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | VU | Underlay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/vu-detect-photoshopped-faces/id1627085441/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 560 MB | 12 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BorzAI](https://appshunter.io/developer/1810183206) | [Vyacheslav Volynchits](https://appshunter.io/developer/1760377754) |

## What reviewers say

### VU

[App page](https://appshunter.io/ios/app/vu-detect-photoshopped-faces/id1627085441)

This app uses AI to detect photo manipulations and edits, revealing the truth behind images. It helps verify authenticity for dating profiles, professional photos, and viral content. Visualize alterations with heatmaps and understand the extent of modifications.

**Highlights:** AI photo analysis, Detect image alterations, Precision heatmap technology, Comprehensive edit detection, Verify dating profile authenticity, Analyze professional images, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VU Weekly | $2.99 | per 7 days |
| VU Annual | $500.00 | per year |


### Underlay

[App page](https://appshunter.io/ios/app/underlay/id6760458231)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Underlay Weekly Membership | $1.99 | per 7 days |
| Underlay Month Membership | $5.99 | per month |


## Frequently asked questions

### Is VU free?

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

### Is Underlay free?

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

### Do VU or Underlay have ads?

VU shows ads; Underlay does not.

### Which is updated more often, VU or Underlay?

VU ships an update weekly, and Underlay every 3 weeks. Most recently, VU was updated on September 6, 2026 and Underlay on September 9, 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.*