# Elgin Pro vs ATweb App

The clearest difference is update cadence: ATweb App at fortnightly against Elgin Pro's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Elgin Pro ships an update every 5 weeks, ATweb App fortnightly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Elgin Pro | ATweb App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 43 MB | 311 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elgin S.A](https://appshunter.io/developer/1220234539) | [ATweb Inc.](https://appshunter.io/developer/1726419046) |

## What reviewers say

### Elgin Pro

[App page](https://appshunter.io/ios/app/elgin-pro/id6447068619)

This app provides essential tools and resources for air conditioning technicians and installers. It offers offline functionality, technical calculators, educational content, and product information to streamline daily tasks and improve customer support.

**Highlights:** Offline technical tools, Thermal capacity calculator, Superheat calculator, Fluid x temperature converter, Educational content and tutorials, Product portfolio and specifications, Error code lookup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ATweb App

[App page](https://appshunter.io/ios/app/atweb-app/id6476314389)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Elgin Pro free?

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

### Is ATweb App free?

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

### Do Elgin Pro or ATweb App have ads?

Neither Elgin Pro nor ATweb App shows ads.

### Which is updated more often, Elgin Pro or ATweb App?

Elgin Pro ships an update every 5 weeks, and ATweb App fortnightly. Most recently, Elgin Pro was updated on October 25, 2026 and ATweb App on October 30, 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.*