# DIAMOND vs iQua2

DIAMOND and iQua2 both sit at 4.7 stars, but that hides the real split: 100% of DIAMOND's written reviews are positive against 38% of iQua2's. DIAMOND also leads on monetization model (free vs ad-supported) and device support (3 vs 1). iQua2's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (763 vs 94). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.7 for DIAMOND against 4.8 for iQua2. That said, the two scores are not equally well evidenced: iQua2 has 763 ratings behind it against 94, so its average is the more settled of the two. Written reviews are what separate them: 100% of DIAMOND's written reviews are positive against 38% of iQua2's.

DIAMOND ships an update every 3 months, iQua2 fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | DIAMOND | iQua2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (94 ratings)](https://appshunter.io/ios/app/diamond-linq/id1448273058/reviews) | **[4.8 (763 ratings)](https://appshunter.io/ios/app/iqua2/id6670173359/reviews)** |
| Number of ratings | 94 | **763** |
| Positive reviews | **100.0% of reviews** | 37.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | **Free** | Ad-supported |
| Size | 23 MB | 47 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Diamond H2O](https://appshunter.io/developer/1448273057) | [EcoWater Systems LLC](https://appshunter.io/developer/1001681720) |

## What reviewers say

### DIAMOND

[App page](https://appshunter.io/ios/app/diamond-linq/id1448273058)

This app allows users to easily set up and monitor their water treatment equipment. Users can control valve settings, view water usage, and initiate system cycles directly from their Bluetooth-enabled device.

**Highlights:** Control and monitor valve settings, View water usage information, Start regeneration/backwash cycles, Set dealer information, Basic troubleshooting, Connect to multiple valves, Update firmware

**Features:** macOS Compatibility

**In-app purchases:** none


### iQua2

[App page](https://appshunter.io/ios/app/iqua2/id6670173359)

Monitor and manage your Wi-Fi connected water treatment systems and water usage remotely. Get system insights like daily usage, flow rate, and salt levels. Receive alerts for unusual water flow or usage.

**Highlights:** Monitor water usage (daily, weekly, monthly, yearly), Track current water flow rate, View salt levels and days remaining, Remotely control water system (on/off), Schedule system regenerations, Receive custom water usage alerts, Receive low salt alerts

**In-app purchases:** none


## Frequently asked questions

### Is DIAMOND free?

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

### Is iQua2 free?

iQua2 is free to download, with no in-app purchases.

### Which has better reviews, DIAMOND or iQua2?

iQua2 is rated higher. DIAMOND averages 4.7 out of 5 from 94 ratings, while iQua2 averages 4.8 from 763 ratings.

### Do DIAMOND or iQua2 have ads?

Neither DIAMOND nor iQua2 shows ads.

### Which is updated more often, DIAMOND or iQua2?

DIAMOND ships an update every 3 months, and iQua2 fortnightly. Most recently, DIAMOND was updated on October 24, 2026 and iQua2 on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*