RegEchse vs Cluster2A
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
RegEchse
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.
- Highlighted regex visualization
- Regex testing
- Search and replace functionality
- Pattern structure understanding
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RegEchse is a small regex tester and a Search & Replace tool. Have fun while testing your regular expressions with the new innovative highlighted regex that makes it easy to understand the structure of what you write down.
Cluster2A
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Machine learning has become a powerful tool, revolutionizing how industries operate. Unsupervised learning is a machine learning method that analyzes and discovers hidden patterns, structures, or relationships in unclassified or unlabeled data. It is widely used to improve customer experience, provide personalized recommendations, optimize operations, and drive innovation. K-means and DBSCAN are two commonly used unsupervised learning algorithms. Common application scenarios: Customer and market segmentation: Grouping customers based on their behavior, demographic characteristics, or purchase history for targeted marketing and personalized recommendations. Retail analytics: Identifying "hotspot areas" in a store through cluster analysis of customer locations. Cluster2A combines two machine learning algorithms, K-means and DBSCAN, to help users with small datasets take their first steps into the world of machine learning more easily and enjoyably.
Screenshots
Verdict
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.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
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.
| Parameter | RegEchse | Cluster2A |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | โ |
| Update frequency | Every 2 months โ better | Every 3 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Monetization | Free | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 9.0 โ better | 26.2 |
| Further details โ not scored | ||
| Size | 15 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Artur Hellmann | Chu-Yi Chang |
In-app purchases
RegEchse
No in-app purchases
Cluster2A
- K-means Model$1.99
- DBSCAN Model$1.99









