# Regex Tester Pattern Editor vs KeyNest

The clearest difference is chart position: Regex Tester Pattern Editor at #199 against KeyNest's unranked. KeyNest's advantage is device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Regex Tester Pattern Editor sells 3 in-app purchases, starting at $2.99 per 7 days and KeyNest sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Regex Tester Pattern Editor ships an update every 3 weeks, KeyNest fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Regex Tester Pattern Editor | KeyNest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/regex-tester-pattern-editor/id6772274452/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Freemium | — |
| Best chart rank | **#199** | — |
| Size | 5 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [晨阳 段](https://appshunter.io/developer/1791560858) |

## What reviewers say

### Regex Tester Pattern Editor

[App page](https://appshunter.io/ios/app/regex-tester-pattern-editor/id6772274452)

**Currently charting:** #199 Top Grossing · Developer Tools (US App Store)

Test regular expressions live on your device. See matches highlight character by character as you type, with instant feedback on invalid patterns. Preview find-and-replace operations and access a built-in cheatsheet for tokens and templates.

**Highlights:** Live regex matching as you type, Capture group inspection, Find and replace preview, Case-insensitive, multiline modes, 19 ready-made patterns, Built-in syntax cheatsheet, Save and reload patterns

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Syntax Cheatsheet Weekly | $2.99 | per 7 days |
| Replace Preview Yearly | $14.99 | per year |
| Expression Validator Forever | $29.99 | one-time |


### KeyNest

[App page](https://appshunter.io/ios/app/keynest-ai-api-key-manager/id6779501183)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeyNest Pro | $1.99 | one-time |


## Frequently asked questions

### Is Regex Tester Pattern Editor free?

Regex Tester Pattern Editor is free to download, with in-app purchases available.

### Is KeyNest free?

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

### Do Regex Tester Pattern Editor or KeyNest have ads?

Neither Regex Tester Pattern Editor nor KeyNest shows ads.

### Which is updated more often, Regex Tester Pattern Editor or KeyNest?

Regex Tester Pattern Editor ships an update every 3 weeks, and KeyNest fortnightly. Most recently, Regex Tester Pattern Editor was updated on October 31, 2026 and KeyNest on November 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.*