# PixelMask vs Underlayer

The clearest difference is ads: PixelMask at none against Underlayer's shown. PixelMask also leads on update cadence (every 2 months vs every 5 months). Underlayer's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. PixelMask sells 4 in-app purchases, starting at $1.99 per month and Underlayer sells 1 in-app purchase, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PixelMask ships an update every 2 months, Underlayer every 5 months. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | PixelMask | Underlayer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pixelmask/id6642652050/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Subscription | — |
| Size | 12 MB | 169 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vitalii Sosin](https://appshunter.io/developer/1522602428) | [Mihail Rukavishnikov](https://appshunter.io/developer/1648782212) |

## What reviewers say

### PixelMask

[App page](https://appshunter.io/ios/app/pixelmask/id6642652050)

This app allows you to hide secret messages or confidential data within images using advanced steganography. It offers multiple methods to ensure your data remains invisible and secure, even under analysis. Protect your privacy and transmit information discreetly.

**Highlights:** Invisible data embedding, Multiple steganography methods, Simple encoding and decoding, Secure data transmission, Preserves image quality

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $1.99 | per month |
| Yearly Premium Access | $9.99 | per year |
| Purchase Premium Access | $9.99 | one-time |
| Purchase Premium Access | $49.99 | one-time |


### Underlayer

[App page](https://appshunter.io/ios/app/underlayer/id6753363956)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per 7 days |


## Frequently asked questions

### Is PixelMask free?

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

### Is Underlayer free?

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

### Do PixelMask or Underlayer have ads?

Underlayer shows ads; PixelMask does not.

### Which is updated more often, PixelMask or Underlayer?

PixelMask ships an update every 2 months, and Underlayer every 5 months. Most recently, PixelMask was updated on September 18, 2026 and Underlayer on September 12, 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.*