# Nalco E vs VZRscada

The clearest difference is update cadence: Nalco E at every 5 weeks against VZRscada's every 23 months. 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.

Nalco E ships an update every 5 weeks, VZRscada every 23 months. The most recent releases landed on June 4, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Nalco E | VZRscada |
| --- | --- | --- |
| 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** | Every 23 months |
| Monetization | Free | — |
| Size | 109 MB | 1 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NALCO COMPANY LLC](https://appshunter.io/developer/1229919600) | [Martz Technologies, Inc.](https://appshunter.io/developer/1508350950) |

## 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


### VZRscada

[App page](https://appshunter.io/ios/app/vzrscada/id1508350951)

**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 VZRscada free?

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

### Do Nalco E or VZRscada have ads?

Neither Nalco E nor VZRscada shows ads.

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

Nalco E ships an update every 5 weeks, and VZRscada every 23 months. Most recently, Nalco E was updated on June 4, 2026 and VZRscada on September 23, 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.*