Comparison

RegEchse vs Cluster2A

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

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.

Highlights
  • Highlighted regex visualization
  • Regex testing
  • Search and replace functionality
  • Pattern structure understanding
Features
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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.

About

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

RegEchse3 screens
Cluster2A4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences ยท 5 level
RegEchse versus Cluster2A: the parameters behind the verdict, then further details
ParameterRegEchseCluster2A
PriceFreeFree
Positive reviews50.0% of reviewsโ€”
Update frequencyEvery 2 months โ€” betterEvery 3 months
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFreeโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS9.0 โ€” better26.2
Further details โ€” not scored
Size15 MB9 MB
Age rating4+4+
DeveloperArtur HellmannChu-Yi Chang

In-app purchases

None

RegEchse

No in-app purchases

2 purchases

Cluster2A

One-time2
  • K-means Model$1.99
  • DBSCAN Model$1.99

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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