# E3 Drying vs AT Dry

The clearest difference is update cadence: E3 Drying at every 3 weeks against AT Dry's every 12 months. E3 Drying also leads on iOS requirement (12.0 vs 14.0). 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.

E3 Drying ships an update every 3 weeks, AT Dry every 12 months. The most recent releases landed on June 4, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | E3 Drying | AT Dry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/e3-drying/id1513574356/reviews)** | — |
| Number of ratings | **10** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Monetization | Free | — |
| Size | 68 MB | 206 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Scott Dewald](https://appshunter.io/developer/1513574355) | [Abatement Technologies](https://appshunter.io/developer/1634201962) |

## What reviewers say

### E3 Drying

[App page](https://appshunter.io/ios/app/e3-drying/id1513574356)

This utility app provides water mitigation professionals with proprietary algorithms and metrics to precisely control drying chambers. It introduces a patent-pending E3 metric to evaluate evaporation ability and set daily targets, allowing for optimized equipment selection and performance comparison.

**Highlights:** Proprietary algorithms for drying chamber control, Patent-pending E3 metric for evaporation evaluation, Daily E3 targets for various equipment and conditions, Equipment ranking and comparison, Control regardless of chamber size or outside conditions

**Features:** macOS Compatibility

**In-app purchases:** none


### AT Dry

[App page](https://appshunter.io/ios/app/at-dry/id1617964186)

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

**In-app purchases:** none


## Frequently asked questions

### Is E3 Drying free?

E3 Drying is free to download, with no in-app purchases.

### Is AT Dry free?

AT Dry is free to download, with no in-app purchases.

### Do E3 Drying or AT Dry have ads?

Neither E3 Drying nor AT Dry shows ads.

### Which is updated more often, E3 Drying or AT Dry?

E3 Drying ships an update every 3 weeks, and AT Dry every 12 months. Most recently, E3 Drying was updated on June 4, 2026 and AT Dry on September 18, 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.*