Comparison

AGA vs Cluster2A

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

Head to head
About

AGA

Features
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AGA-3 Orifice calculates size, flow-rate or pressure drop for gas and liquid flow orifice meters based on the American Gas Association AGA Report No. 3 (AGA-3) (also API Manual of Petroleum Measurement Standards, Chapter 14.3). Orifice Size is calculated from given flowrate and pressure drop, Flowrate is calculated from given size and pressure drop and Pressure Drop requires orifice size and flowrate. Different taps can be selected: Flange Taps and Pipe Taps. Fluids include gases: Natural Gas (Specific Gravity must be provided), Air and Nitrogen, or liquids: Crude Oil, Water, Methanol, Mono-ethylene Glycol, Diethylene Glycol and Triethylene Glycol. In addition, selecting orifice material will adjust the sizing parameter of the orifice depending on temperature. Customary or SI-units.

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

AGA4 screens
Cluster2A4 screens

Verdict

The call

The clearest difference is price: Cluster2A at Free against AGA's $0.99. Cluster2A also leads on update cadence (every 3 months vs every 15 months). AGA's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Cluster2A is free to download; AGA costs $0.99 up front. Cluster2A sells 2 one-off in-app purchases. AGA asks for nothing beyond the download.

UpkeepUpdate frequency

AGA ships an update every 15 months, Cluster2A every 3 months. The most recent releases landed on September 28, 2026 and October 4, 2026 respectively.

Scorecard5 real differences Β· 1 level
AGA versus Cluster2A: the parameters behind the verdict, then further details
ParameterAGACluster2A
Price$0.99Free β€” better
Update frequencyEvery 15 monthsEvery 3 months β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.6 β€” better26.2
Further details β€” not scored
Size1 MB9 MB
Age rating17+4+
DeveloperBjarne BergeChu-Yi Chang

In-app purchases

None

AGA

No in-app purchases

2 purchases

Cluster2A

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

Questions

Is AGA free?
AGA costs $0.99, with no in-app purchases.
Is Cluster2A free?
Cluster2A is free to download, with in-app purchases available.
Do AGA or Cluster2A have ads?
Neither AGA nor Cluster2A shows ads.
Which is updated more often, AGA or Cluster2A?
AGA ships an update every 15 months, and Cluster2A every 3 months. Most recently, AGA was updated on September 28, 2026 and Cluster2A on October 4, 2026.

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