e vs Cool Guard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
This tool allows water quality professionals to collect, manage, analyze, and track water quality test parameters. It is designed for water treatment facilities and professionals in the field.
- Water quality data collection
- Data management
- Analysis of test parameters
- Tracking of water quality
- Designed for professionals
- Supports water treatment facilities
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The e-sens ROAM app is a free water quality collection tool to gather, manage, analyze and track all your water quality test parameters. Built for Water quality professionals and water treatment facilities.
Cool Guard
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Installer, this app is for you. To log on, you only need the serial number of your Cool Guard Comm device and it model number. Enter that and proceed to Start Test! Follow the instructions to test your temp probes, humidity, battery voltage, door open status, Paw Protect switch and hot or cold alarm signal.
Screenshots
Verdict
The clearest difference is device support: e at 3 against Cool Guard's 1. 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.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.
| Parameter | e | Cool Guard |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 32 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | e-sens, Inc. | TouchLync, Inc |
In-app purchases
e
No in-app purchases
Cool Guard
No in-app purchases
