# zero vs MQTT Developer

The clearest difference is ads: MQTT Developer at none against zero's shown. MQTT Developer also leads on iOS requirement (13.0 vs 15.6). zero's advantage is chart position (#202 vs unranked) and update cadence (every 2 months vs every 3 months). On price, 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.

zero ships an update every 2 months, MQTT Developer every 3 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | zero | MQTT Developer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/zero-z1/id6479646791/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Ad-supported | — |
| Best chart rank | **#202** | — |
| Size | 37 MB | 52 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohammad Alipour Behzadi](https://appshunter.io/developer/1711941412) | [Patrick West](https://appshunter.io/developer/1560984117) |

## What reviewers say

### zero

[App page](https://appshunter.io/ios/app/zero-z1/id6479646791)

**Currently charting:** #202 Top Free · Developer Tools (US App Store)

Control your burglar alarm remotely via SMS commands. This application simplifies sending instructions to your alarm system without manual text input.

**Highlights:** Remote alarm control, SMS command sending, Multiple location support, Simplified interface, No manual text typing

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

**In-app purchases:** none


### MQTT Developer

[App page](https://appshunter.io/ios/app/mqtt-developer/id6505110467)

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

**In-app purchases:** none


## Frequently asked questions

### Is zero free?

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

### Is MQTT Developer free?

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

### Do zero or MQTT Developer have ads?

zero shows ads; MQTT Developer does not.

### Which is updated more often, zero or MQTT Developer?

zero ships an update every 2 months, and MQTT Developer every 3 months. Most recently, zero was updated on September 21, 2026 and MQTT Developer on September 10, 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.*