# Underlayer vs ComDeck

The clearest difference is in-app purchases: ComDeck at none against Underlayer's 1. ComDeck also leads on ads (none vs shown) and update cadence (fortnightly vs every 5 months). Underlayer's advantage is iOS requirement (15.1 vs 26.2). On price and device support there is nothing between them.

Both are free to download. Underlayer sells 1 in-app purchase, starting at $2.99 per 7 days. ComDeck asks for nothing beyond the download.

Underlayer ships an update every 5 months, ComDeck fortnightly. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Underlayer | ComDeck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 169 MB | 29 MB |
| Requires iOS | **15.1** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mihail Rukavishnikov](https://appshunter.io/developer/1648782212) | [Riyad Anabtawi](https://appshunter.io/developer/1537641230) |

## What reviewers say

### 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 |


### ComDeck

[App page](https://appshunter.io/ios/app/comdeck/id6761635080)

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

**In-app purchases:** none


## Frequently asked questions

### Is Underlayer free?

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

### Is ComDeck free?

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

### Do Underlayer or ComDeck have ads?

Underlayer shows ads; ComDeck does not.

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

Underlayer ships an update every 5 months, and ComDeck fortnightly. Most recently, Underlayer was updated on October 1, 2026 and ComDeck on October 5, 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.*