# Appion Central vs DiagnosePro

The clearest difference is iOS requirement: Appion Central at 13.0 against DiagnosePro's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Appion Central | DiagnosePro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (14 ratings)](https://appshunter.io/ios/app/appion-central/id1455230837/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Free | — |
| Size | 35 MB | 7 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appion Inc.](https://appshunter.io/developer/978979622) | [Suelware Inc.](https://appshunter.io/developer/1178420556) |

## What reviewers say

### Appion Central

[App page](https://appshunter.io/ios/app/appion-central/id1455230837)

Manage your HVAC tools and connect to the web portal. This app provides a mobile interface for your Appion products.

**Highlights:** Manage Appion products, Interface with Appion Portal, Mobile tool management

**Features:** macOS Compatibility

**In-app purchases:** none


### DiagnosePro

[App page](https://appshunter.io/ios/app/diagnosepro/id6744031464)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Appion Central free?

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

### Is DiagnosePro free?

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

### Do Appion Central or DiagnosePro have ads?

Neither Appion Central nor DiagnosePro shows ads.

### Which is updated more often, Appion Central or DiagnosePro?

Appion Central ships an update every 5 weeks, and DiagnosePro every 5 weeks. Most recently, Appion Central was updated on November 11, 2026 and DiagnosePro on November 8, 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.*