# PBX vs AI Agent Assistant

The clearest difference is in-app purchases: PBX at none against AI Agent Assistant's 8. PBX also leads on iOS requirement (12.0 vs 17.0). AI Agent Assistant's advantage is update cadence (weekly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. AI Agent Assistant sells 8 in-app purchases, starting at $9.99 per 7 days. PBX asks for nothing beyond the download.

PBX ships an update every 4 months, AI Agent Assistant weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PBX | AI Agent Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (195 ratings)](https://appshunter.io/ios/app/ai-agent-assistant-agentic-ai/id6761501260/reviews)** |
| Number of ratings | — | **195** |
| Positive reviews | — | 35.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 25 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [PracBiz Pte Ltd](https://appshunter.io/developer/1833141553) | [Little Tough Apps](https://appshunter.io/developer/1786880698) |

## What reviewers say

### PBX

[App page](https://appshunter.io/ios/app/pbx/id1567169977)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Agent Assistant

[App page](https://appshunter.io/ios/app/ai-agent-assistant-agentic-ai/id6761501260)

This app provides a team of specialized AI agents to assist with various tasks, from writing and coding to research and planning. Users can leverage individual agents or assemble teams for collaborative problem-solving, with options to build custom agents.

**Highlights:** Team of specialized AI agents, Individual and collaborative agent use, Custom agent creation, Real-time agent collaboration, Expertise in writing, coding, research, and planning, Private by design, no account needed

**Features:** iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Access Weekly Std | $9.99 | per 7 days |
| PRO Access Weekly | $9.99 | per 7 days |
| PRO Access Yearly Std | $24.99 | per year |
| PRO Access Yearly | $34.99 | per year |
| Agentic AI PRO | $79.99 | per year |
| Genius Credits | $7.99 | one-time |
| Prof Credits | $59.99 | one-time |
| Top Credits | $99.99 | one-time |


## Frequently asked questions

### Is PBX free?

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

### Is AI Agent Assistant free?

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

### Do PBX or AI Agent Assistant have ads?

Neither PBX nor AI Agent Assistant shows ads.

### Which is updated more often, PBX or AI Agent Assistant?

PBX ships an update every 4 months, and AI Agent Assistant weekly. Most recently, PBX was updated on October 30, 2026 and AI Agent Assistant on October 31, 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.*