# Nalco E vs MoBau

The clearest difference is iOS requirement: Nalco E at 13.0 against MoBau's 15.1. On price, update cadence, 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.

Nalco E ships an update every 5 weeks, MoBau monthly. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Nalco E | MoBau |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (21 ratings)](https://appshunter.io/ios/app/nalco-e-data/id1229919601/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | — |
| Size | 109 MB | 36 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NALCO COMPANY LLC](https://appshunter.io/developer/1229919600) | [Web & Print Media Switzerland Sarl](https://appshunter.io/developer/1462168165) |

## What reviewers say

### Nalco E

[App page](https://appshunter.io/ios/app/nalco-e-data/id1229919601)

This app allows users to easily capture and track system-specific data, including water chemistry, inventory, and meter readings. It helps ensure optimal performance of water systems and proactively identifies potential issues. Features include offline data capture and alerts for out-of-limit results.

**Highlights:** Capture water chemistry, inventory, and meter data, Trigger alerts for out-of-limit results, Measure bacteria counts quickly, Offline data capture capability, Proactive identification of system issues

**Features:** macOS Compatibility

**In-app purchases:** none


### MoBau

[App page](https://appshunter.io/ios/app/mobau/id6746497214)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nalco E free?

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

### Is MoBau free?

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

### Do Nalco E or MoBau have ads?

Neither Nalco E nor MoBau shows ads.

### Which is updated more often, Nalco E or MoBau?

Nalco E ships an update every 5 weeks, and MoBau monthly. Most recently, Nalco E was updated on October 7, 2026 and MoBau on October 6, 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.*