# PBXAPP vs Zfone

The clearest difference is update cadence: PBXAPP at every 2 months against Zfone's every 10 months. On price, ads, 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.

PBXAPP ships an update every 2 months, Zfone every 10 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PBXAPP | Zfone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Size | 109 MB | 116 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Outbox AG](https://appshunter.io/developer/1722630235) | [Telco Depot Inc](https://appshunter.io/developer/1798939381) |

## What reviewers say

### PBXAPP

[App page](https://appshunter.io/ios/app/pbxapp/id6474870851)

**In-app purchases:** none


### Zfone

[App page](https://appshunter.io/ios/app/zfone/id6742549416)

**In-app purchases:** none


## Frequently asked questions

### Is PBXAPP free?

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

### Is Zfone free?

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

### Do PBXAPP or Zfone have ads?

Neither PBXAPP nor Zfone shows ads.

### Which is updated more often, PBXAPP or Zfone?

PBXAPP ships an update every 2 months, and Zfone every 10 months. Most recently, PBXAPP was updated on October 27, 2026 and Zfone on October 28, 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.*