# WMA ClearWater vs e

The clearest difference is update cadence: WMA ClearWater at every 3 weeks against e's every 2 months. WMA ClearWater also leads on iOS requirement (13.0 vs 15.6). 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.

WMA ClearWater ships an update every 3 weeks, e every 2 months. The most recent releases landed on October 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | WMA ClearWater | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/e-sens/id1585074022/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 44 MB | 32 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wastewater Management Authority](https://appshunter.io/developer/1543221047) | [e-sens, Inc.](https://appshunter.io/developer/1479061797) |

## What reviewers say

### WMA ClearWater

[App page](https://appshunter.io/ios/app/wma-clearwater/id1543221045)

**Features:** macOS Compatibility

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-sens/id1585074022)

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.

**Highlights:** Water quality data collection, Data management, Analysis of test parameters, Tracking of water quality, Designed for professionals, Supports water treatment facilities

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

**In-app purchases:** none


## Frequently asked questions

### Is WMA ClearWater free?

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

### Is e free?

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

### Do WMA ClearWater or e have ads?

Neither WMA ClearWater nor e shows ads.

### Which is updated more often, WMA ClearWater or e?

WMA ClearWater ships an update every 3 weeks, and e every 2 months. Most recently, WMA ClearWater was updated on October 7, 2026 and e on November 3, 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.*