# Underlayer vs GrepEx

The clearest difference is price: Underlayer at Free against GrepEx's $1.99. GrepEx's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Underlayer is free to download; GrepEx costs $1.99 up front. Underlayer sells 1 in-app purchase, starting at $2.99 per 7 days. GrepEx asks for nothing beyond the download.

Underlayer ships an update every 5 months, GrepEx weekly. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Underlayer | GrepEx |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Weekly** |
| Size | 169 MB | 12 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mihail Rukavishnikov](https://appshunter.io/developer/1648782212) | [Jeremy Laratro](https://appshunter.io/developer/1864044207) |

## 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 |


### GrepEx

[App page](https://appshunter.io/ios/app/grepex/id6756987451)

**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 GrepEx free?

GrepEx costs $1.99, with no in-app purchases.

### Do Underlayer or GrepEx have ads?

Underlayer shows ads; GrepEx does not.

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

Underlayer ships an update every 5 months, and GrepEx weekly. Most recently, Underlayer was updated on October 1, 2026 and GrepEx on October 7, 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.*