# Unicast(MCU) vs CallAgent AI

The clearest difference is in-app purchases: Unicast(MCU) at none against CallAgent AI's 2. Unicast(MCU) also leads on iOS requirement (12.0 vs 15.6). CallAgent AI's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. CallAgent AI sells 2 in-app purchases, starting at $14.99 per month. Unicast(MCU) asks for nothing beyond the download.

Unicast(MCU) ships an update every 5 months, CallAgent AI every 3 weeks. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Unicast(MCU) | CallAgent AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 59 MB | 183 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ultari Inc](https://appshunter.io/developer/1611773633) | [重庆子媛发国际进出口贸易有限公司](https://appshunter.io/developer/1738364982) |

## What reviewers say

### Unicast(MCU)

[App page](https://appshunter.io/ios/app/unicastmcu/id1611773631)

**Features:** macOS Compatibility

**In-app purchases:** none


### CallAgent AI

[App page](https://appshunter.io/ios/app/callagent-ai/id6636533563)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All AI | $14.99 | per month |
| CallAgent Subscribe | $14.99 | one-time |


## Frequently asked questions

### Is Unicast(MCU) free?

Unicast(MCU) is free to download, with no in-app purchases.

### Is CallAgent AI free?

CallAgent AI is free to download, with in-app purchases available.

### Do Unicast(MCU) or CallAgent AI have ads?

Neither Unicast(MCU) nor CallAgent AI shows ads.

### Which is updated more often, Unicast(MCU) or CallAgent AI?

Unicast(MCU) ships an update every 5 months, and CallAgent AI every 3 weeks. Most recently, Unicast(MCU) was updated on October 11, 2026 and CallAgent AI on October 9, 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.*