# Mercury vs Commtel Config

The clearest difference is review sentiment: Commtel Config at 50% against Mercury's 0%. Commtel Config also leads on update cadence (monthly vs every 3 months). Mercury's advantage is iOS requirement (8.0 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mercury ships an update every 3 months, Commtel Config monthly. Both last shipped on October 4, 2026.

## The numbers

| Metric | Mercury | Commtel Config |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 20 MB | 151 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [R Hamilton & Co Ltd.](https://appshunter.io/developer/482574203) | [Commtel Ltd](https://appshunter.io/developer/727709984) |

## What reviewers say

### Mercury

[App page](https://appshunter.io/ios/app/mercury/id482574198)

Control your multi-room audio system remotely. Manage playback, zones, and settings for a seamless listening experience throughout your home.

**Highlights:** Remote control, Multi-room audio system management, Zone control, Playback management, Settings adjustment

**Features:** macOS Compatibility

**In-app purchases:** none


### Commtel Config

[App page](https://appshunter.io/ios/app/commtel-config/id1562639613)

Easily configure your Commtel system by filling in on-screen fields and sending SMS commands. The app remembers your system details and previous commands, simplifying modifications and eliminating the need to memorize complex SMS formats.

**Highlights:** Compose and send SMS commands, No need to memorize SMS commands, Remembers system details and previous commands, Store multiple named Commtel systems, Supports multiple telephone numbers and login codes

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

**In-app purchases:** none


## Frequently asked questions

### Is Mercury free?

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

### Is Commtel Config free?

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

### Do Mercury or Commtel Config have ads?

Neither Mercury nor Commtel Config shows ads.

### Which is updated more often, Mercury or Commtel Config?

Mercury ships an update every 3 months, and Commtel Config monthly. Most recently, Mercury was updated on October 4, 2026 and Commtel Config on October 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.*