# Link2Valves vs AQS

The clearest difference is ads: AQS at none against Link2Valves's shown. On price, update cadence, 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.

Link2Valves ships an update every 3 weeks, AQS every 5 weeks. Both last shipped on September 14, 2026.

## The numbers

| Metric | Link2Valves | AQS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/link2valves/id1478479539/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Ad-supported | — |
| Size | 25 MB | 70 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Griswold Industries](https://appshunter.io/developer/1478479538) | [Aquarius-Spectrum](https://appshunter.io/developer/1613033707) |

## What reviewers say

### Link2Valves

[App page](https://appshunter.io/ios/app/link2valves/id1478479539)

This utility app helps water systems track the maintenance status of their control valves. It provides an intuitive platform to manage asset information, schedule preventative maintenance, and minimize downtime for water system infrastructure.

**Highlights:** Track control valve maintenance status, Manage water system asset information, Schedule preventative maintenance, Minimize equipment downtime, View, edit, and create valve assets, Sync data with web portal

**Features:** macOS Compatibility

**In-app purchases:** none


### AQS

[App page](https://appshunter.io/ios/app/aqs-sys-app/id1613033435)

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

**In-app purchases:** none


## Frequently asked questions

### Is Link2Valves free?

Link2Valves is free to download, with no in-app purchases.

### Is AQS free?

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

### Do Link2Valves or AQS have ads?

Link2Valves shows ads; AQS does not.

### Which is updated more often, Link2Valves or AQS?

Link2Valves ships an update every 3 weeks, and AQS every 5 weeks. Most recently, Link2Valves was updated on September 14, 2026 and AQS on September 14, 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.*