# RegEchse vs Cluster2A

The clearest difference is in-app purchases: RegEchse at none against Cluster2A's 2. RegEchse also leads on device support (3 vs 1) and iOS requirement (9.0 vs 26.2). On price, update cadence and ads there is nothing between them.

Both are free to download. Cluster2A sells 2 one-off in-app purchases. RegEchse asks for nothing beyond the download.

RegEchse ships an update every 2 months, Cluster2A every 3 months. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | RegEchse | Cluster2A |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 15 MB | 9 MB |
| Requires iOS | **9.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Artur Hellmann](https://appshunter.io/developer/1055318537) | [Chu-Yi Chang](https://appshunter.io/developer/943416679) |

## What reviewers say

### RegEchse

[App page](https://appshunter.io/ios/app/regechse/id1061035460)

Test and refine your regular expressions with an innovative highlighted view that clarifies complex patterns. This tool also offers powerful search and replace functionality for efficient text manipulation.

**Highlights:** Highlighted regex visualization, Regex testing, Search and replace functionality, Pattern structure understanding

**Features:** macOS Compatibility

**In-app purchases:** none


### Cluster2A

[App page](https://appshunter.io/ios/app/cluster2a/id1544599436)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| K-means Model | $1.99 | one-time |
| DBSCAN Model | $1.99 | one-time |


## Frequently asked questions

### Is RegEchse free?

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

### Is Cluster2A free?

Cluster2A is free to download, with in-app purchases available.

### Do RegEchse or Cluster2A have ads?

Neither RegEchse nor Cluster2A shows ads.

### Which is updated more often, RegEchse or Cluster2A?

RegEchse ships an update every 2 months, and Cluster2A every 3 months. Most recently, RegEchse was updated on October 9, 2026 and Cluster2A on October 4, 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.*