# Ariel Quick Size vs ecom® ecommander

The clearest difference is review sentiment: Ariel Quick Size at 100% against ecom® ecommander's 13%. Ariel Quick Size also leads on rating (5.0 vs 3.0) and iOS requirement (9.0 vs 16.6). ecom® ecommander's advantage is update cadence (every 5 weeks vs every 7 months) and ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ariel Quick Size holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of Ariel Quick Size's written reviews are positive against 13% of ecom® ecommander's.

Ariel Quick Size ships an update every 7 months, ecom® ecommander every 5 weeks. The most recent releases landed on July 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Ariel Quick Size | ecom® ecommander |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ariel-quick-size/id571901596/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/ecom-ecommander/id1363886513/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 31 MB | 28 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ariel Corporation](https://appshunter.io/developer/571901606) | [ecom GmbH](https://appshunter.io/developer/1213366518) |

## What reviewers say

### Ariel Quick Size

[App page](https://appshunter.io/ios/app/ariel-quick-size/id571901596)

This utility app helps users estimate compressor configurations based on input pressures and flow requirements. It calculates needed horsepower or flow, suggests frame and cylinder configurations, and estimates stages, bore sizes, and discharge temperatures. Results can be emailed for further review.

**Highlights:** Horsepower or gas flow estimate, Compressor frame and cylinder configuration, Estimate required stages and bore sizes, Input gas specific gravity, English or Metric units, Email results

**Features:** macOS Compatibility

**In-app purchases:** none


### ecom® ecommander

[App page](https://appshunter.io/ios/app/ecom-ecommander/id1363886513)

This app allows you to remotely control and manage ecom® flue gas analyzers. It enables reading measurement values, starting/stopping tests, inputting customer data, and generating reports in PDF or CSV formats.

**Highlights:** Read measurement values, Start/stop measurements, Input customer data, Generate PDF reports, Generate CSV reports, Export data via email/cloud, Customize value display

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ariel Quick Size free?

Ariel Quick Size is free to download, with no in-app purchases.

### Is ecom® ecommander free?

ecom® ecommander is free to download, with no in-app purchases.

### Which has better reviews, Ariel Quick Size or ecom® ecommander?

Ariel Quick Size is rated higher. Ariel Quick Size averages 5.0 out of 5 from 1 ratings, while ecom® ecommander averages 3.0 from 4 ratings.

### Do Ariel Quick Size or ecom® ecommander have ads?

Neither Ariel Quick Size nor ecom® ecommander shows ads.

### Which is updated more often, Ariel Quick Size or ecom® ecommander?

Ariel Quick Size ships an update every 7 months, and ecom® ecommander every 5 weeks. Most recently, Ariel Quick Size was updated on July 1, 2026 and ecom® ecommander on September 8, 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.*