# Nalco E vs Ecolab StainID

The clearest difference is rating: Ecolab StainID at 5.0 against Nalco E's 3.0. Ecolab StainID also leads on iOS requirement (11.0 vs 13.0). Nalco E's advantage is review sentiment (14% vs 0%) and ratings volume (21 vs 2). 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.

Ecolab StainID holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Nalco E has 21 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 14% of Nalco E's written reviews are positive against 0% of Ecolab StainID's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 5 weeks. Both last shipped on June 4, 2026.

## The numbers

| Metric | Nalco E | Ecolab StainID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (21 ratings)](https://appshunter.io/ios/app/nalco-e-data/id1229919601/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ecolab-stainid/id6476347293/reviews)** |
| Number of ratings | **21** | 2 |
| Positive reviews | **14.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | Free |
| Size | 109 MB | 107 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NALCO COMPANY LLC](https://appshunter.io/developer/1229919600) | [Ecolab Inc](https://appshunter.io/developer/1132697449) |

## 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


### Ecolab StainID

[App page](https://appshunter.io/ios/app/ecolab-stainid/id6476347293)

This app helps identify and manage laundry stains. It provides detailed information and recommended solutions for various types of stains, ensuring effective cleaning. Ideal for professionals in the textile care industry.

**Highlights:** Stain identification, Recommended cleaning solutions, Detailed stain information, Professional textile care support

**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 Ecolab StainID free?

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

### Which has better reviews, Nalco E or Ecolab StainID?

Ecolab StainID is rated higher. Nalco E averages 3.0 out of 5 from 21 ratings, while Ecolab StainID averages 5.0 from 2 ratings.

### Do Nalco E or Ecolab StainID have ads?

Neither Nalco E nor Ecolab StainID shows ads.

### Which is updated more often, Nalco E or Ecolab StainID?

Nalco E ships an update every 5 weeks, and Ecolab StainID every 5 weeks. Most recently, Nalco E was updated on June 4, 2026 and Ecolab StainID on June 4, 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.*