# Centra Connect vs ADM VoIP

The clearest difference is update cadence: Centra Connect at every 3 months against ADM VoIP's every 9 months. ADM VoIP's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Centra Connect ships an update every 3 months, ADM VoIP every 9 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Centra Connect | ADM VoIP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/centra-connect/id6443876138/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | — |
| Size | 115 MB | 56 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Advanced Communications LLC](https://appshunter.io/developer/1514873172) | [ADM Technologies Inc](https://appshunter.io/developer/1850231129) |

## What reviewers say

### Centra Connect

[App page](https://appshunter.io/ios/app/centra-connect/id6443876138)

This communication app allows users to make and receive calls using their existing phone number. It supports high-definition voice and video, along with push notifications for incoming calls. Users can also enjoy free calling between other users of the application.

**Highlights:** SIP softphone functionality, Push notifications, HD voice and video calls, Free calling between app users

**In-app purchases:** none


### ADM VoIP

[App page](https://appshunter.io/ios/app/adm-voip/id6754810396)

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

**In-app purchases:** none


## Frequently asked questions

### Is Centra Connect free?

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

### Is ADM VoIP free?

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

### Do Centra Connect or ADM VoIP have ads?

Neither Centra Connect nor ADM VoIP shows ads.

### Which is updated more often, Centra Connect or ADM VoIP?

Centra Connect ships an update every 3 months, and ADM VoIP every 9 months. Most recently, Centra Connect was updated on October 30, 2026 and ADM VoIP on October 25, 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.*