# Manifold Link vs Appion Central

The clearest difference is review sentiment: Appion Central at 29% against Manifold Link's 0%. Manifold Link's advantage is iOS requirement (7.0 vs 13.0). 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.

Manifold Link ships an update every 3 weeks, Appion Central every 5 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Manifold Link | Appion Central |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.8 (14 ratings)](https://appshunter.io/ios/app/appion-central/id1455230837/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | 0.0% of reviews | **28.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 29 MB | 35 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CPS Products](https://appshunter.io/developer/945771072) | [Appion Inc.](https://appshunter.io/developer/978979622) |

## What reviewers say

### Manifold Link

[App page](https://appshunter.io/ios/app/manifold-link/id945771073)

Remotely control and monitor select functions of wireless digital manifolds for HVAC servicing. View system measurements, graphical data, and log information for comprehensive equipment analysis.

**Highlights:** Remote communication with digital manifolds, Control select manifold functions, Comprehensive system measurement views, Graphical depictions of test functions, Data logging capabilities

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Manifold Link free?

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

### Is Appion Central free?

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

### Do Manifold Link or Appion Central have ads?

Neither Manifold Link nor Appion Central shows ads.

### Which is updated more often, Manifold Link or Appion Central?

Manifold Link ships an update every 3 weeks, and Appion Central every 5 weeks. Most recently, Manifold Link was updated on October 13, 2026 and Appion Central on October 3, 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.*