# Callflow Unify vs Event PRO Forum

The clearest difference is update cadence: Event PRO Forum at every 10 days against Callflow Unify's every 10 months. Event PRO Forum also leads on iOS requirement (13.0 vs 15.0). 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.

Callflow Unify ships an update every 10 months, Event PRO Forum every 10 days. The most recent releases landed on September 18, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Callflow Unify | Event PRO Forum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 10 days** |
| Size | 90 MB | 144 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Price International EOOD](https://appshunter.io/developer/1536581279) | [Fundamental Studio LTD OOD](https://appshunter.io/developer/1660763956) |

## What reviewers say

### Callflow Unify

[App page](https://appshunter.io/ios/app/callflow-unify/id1596906748)

**Features:** macOS Compatibility

**In-app purchases:** none


### Event PRO Forum

[App page](https://appshunter.io/ios/app/event-pro-forum/id6751637477)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Callflow Unify free?

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

### Is Event PRO Forum free?

Event PRO Forum is free to download, with no in-app purchases.

### Do Callflow Unify or Event PRO Forum have ads?

Neither Callflow Unify nor Event PRO Forum shows ads.

### Which is updated more often, Callflow Unify or Event PRO Forum?

Callflow Unify ships an update every 10 months, and Event PRO Forum every 10 days. Most recently, Callflow Unify was updated on September 18, 2026 and Event PRO Forum on May 19, 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.*