# E3 Drying vs Restoration

The clearest difference is ratings volume: E3 Drying at 10 against Restoration's 1. E3 Drying also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 14.0). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for E3 Drying against 5.0 for Restoration. That said, the two scores are not equally well evidenced: E3 Drying has 10 ratings behind it against 1, so its average is the more settled of the two.

E3 Drying ships an update every 3 weeks, Restoration every 2 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | E3 Drying | Restoration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/e3-drying/id1513574356/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/restoration-os/id6443714896/reviews) |
| Number of ratings | **10** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 68 MB | 44 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scott Dewald](https://appshunter.io/developer/1513574355) | [Mitchell Byrom](https://appshunter.io/developer/1648634625) |

## 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


### Restoration

[App page](https://appshunter.io/ios/app/restoration-os/id6443714896)

This app helps full-service restoration companies manage their operations efficiently. It allows users to sign contracts, assign technicians, inspect projects, scan rooms in 3D, add scope notes, create estimates, record communications, and manage job costing and scheduling.

**Highlights:** Contract signing, Technician assignment, 3D room scanning, Scope notes and estimates, Customer communication logging, Job costing and scheduling

**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 Restoration free?

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

### Which has better reviews, E3 Drying or Restoration?

E3 Drying and Restoration are both rated 5.0 out of 5 on the App Store, from 10 and 1 ratings respectively.

### Do E3 Drying or Restoration have ads?

Neither E3 Drying nor Restoration shows ads.

### Which is updated more often, E3 Drying or Restoration?

E3 Drying ships an update every 3 weeks, and Restoration every 2 months. Most recently, E3 Drying was updated on October 2, 2026 and Restoration on October 7, 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.*