# iQua2 vs PETNF

The clearest difference is update cadence: iQua2 at every 3 weeks against PETNF's every 14 months. PETNF's advantage is iOS requirement (13.0 vs 16.6). 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.

iQua2 ships an update every 3 weeks, PETNF every 14 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iQua2 | PETNF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (793 ratings)](https://appshunter.io/ios/app/iqua2/id6670173359/reviews)** | — |
| Number of ratings | **793** | — |
| Positive reviews | 43.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 14 months |
| Monetization | Ad-supported | — |
| Size | 40 MB | 109 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EcoWater Systems LLC](https://appshunter.io/developer/1001681720) | [LESOROCITY (SHENZHEN) IND'L](https://appshunter.io/developer/1889071730) |

## What reviewers say

### 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


### PETNF

[App page](https://appshunter.io/ios/app/petnf/id6748596395)

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

**In-app purchases:** none


## Frequently asked questions

### Is iQua2 free?

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

### Is PETNF free?

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

### Do iQua2 or PETNF have ads?

Neither iQua2 nor PETNF shows ads.

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

iQua2 ships an update every 3 weeks, and PETNF every 14 months. Most recently, iQua2 was updated on November 8, 2026 and PETNF on October 30, 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.*