# Arzel Pro vs Unstumble

The clearest difference is in-app purchases: Arzel Pro at none against Unstumble's 1. Arzel Pro also leads on iOS requirement (15.0 vs 18.4). On price, ads and device support there is nothing between them.

Both are free to download. Unstumble sells 1 in-app purchase, starting at $6.99 per 7 days. Arzel Pro asks for nothing beyond the download.

## The numbers

| Metric | Arzel Pro | Unstumble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/arzel-pro/id6670562268/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 11 MB | 6 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Arzel Technology, Inc.](https://appshunter.io/developer/644309533) | [Affirmations](https://appshunter.io/developer/1681218022) |

## What reviewers say

### Arzel Pro

[App page](https://appshunter.io/ios/app/arzel-pro/id6670562268)

This app allows HVAC contractors to configure and manage a universal zoning panel. It offers easy setup, diagnostics, and software updates via a Bluetooth connection. Homeowners control the system through installed thermostats.

**Highlights:** App-controlled zoning panel, Create up to 16 zones, One-tap equipment settings, Bluetooth configuration, System diagnostics, Software updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Unstumble

[App page](https://appshunter.io/ios/app/unstumble-text-assistant/id6746147145)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |


## Frequently asked questions

### Is Arzel Pro free?

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

### Is Unstumble free?

Unstumble is free to download, with in-app purchases available.

### Do Arzel Pro or Unstumble have ads?

Neither Arzel Pro nor Unstumble shows ads.

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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.*