E3 Drying vs Kahi Field App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E3 Drying
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.
- 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
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This app is built for all levels of restorers in the water mitigation industry. For the first time ever these proprietary algorithms and metrics will give the restorer complete control of their drying chamber regardless of the size, class, equipment used or outside conditions instead of the restorer being controlled by their chamber. The keystone metric for this app is the patent pending E3 metric that can evaluate the exact evaporation ability of any condition in a drying chamber and the daily E3 targets that have been set for all different types of drying equipment for all possible water classes and outside conditions. This metric also allows for all different types of equipment to be specifically ranked or compared to prove which is the best for any job scenario.
Kahi Field App
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Kahi is a powerful mobile app designed specifically for restoration companies. It enables field technicians to track the real-time location and status of their equipment, whether it’s at a job site, warehouse, or inside a vehicle. With instant access to critical equipment data, teams can work more efficiently, minimize downtime, and stay in control.
Screenshots
Verdict
The clearest difference is device support: E3 Drying at 3 against Kahi Field App's 1. E3 Drying also leads on iOS requirement (12.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Kahi Field App every 5 weeks. The most recent releases landed on June 4, 2026 and September 13, 2026 respectively.
| Parameter | E3 Drying | Kahi Field App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 68 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott Dewald | Kahi Inc. |
In-app purchases
E3 Drying
No in-app purchases
Kahi Field App
No in-app purchases









