# Mobile ZAC vs Threo

The clearest difference is rating: Threo at 5.0 against Mobile ZAC's 3.8. Threo also leads on update cadence (every 3 days vs every 3 months). Mobile ZAC's advantage is ratings volume (56 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Threo holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Mobile ZAC has 56 ratings behind it against 2, so its average is the more settled of the two.

Mobile ZAC ships an update every 3 months, Threo every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Mobile ZAC | Threo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (56 ratings)](https://appshunter.io/ios/app/mobile-zac/id1589199857/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/threo-secure-ai-for-work/id6779433165/reviews)** |
| Number of ratings | **56** | 2 |
| Positive reviews | 54.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 60 MB | 58 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Zultys, Inc.](https://appshunter.io/developer/420370950) | [Synthreo, Inc.](https://appshunter.io/developer/6779433587) |

## What reviewers say

### Mobile ZAC

[App page](https://appshunter.io/ios/app/mobile-zac/id1589199857)

Transform your mobile device into a fully functional business phone. This app integrates with Zultys systems to provide remote and mobile employees with essential communication tools, including video conferencing, instant messaging, and call management.

**Highlights:** Video conferencing, Scheduled conferences, Call logs with filtering, Instant messaging, Call attached data, Retrieve active calls, Agent roles & queue monitor

**In-app purchases:** none


### Threo

[App page](https://appshunter.io/ios/app/threo-secure-ai-for-work/id6779433165)

This AI assistant provides a secure workspace for your organization, allowing you to chat, draft, summarize, and run specialized agents. It offers hands-free voice input and seamless synchronization with its web version, all while prioritizing privacy and company policies.

**Highlights:** Secure AI chat, AI agents for repeatable tasks, Hands-free voice input, Attach photos, documents, and files, Syncs with web version, Quick Actions widget, Encrypted in transit

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

**In-app purchases:** none


## Frequently asked questions

### Is Mobile ZAC free?

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

### Is Threo free?

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

### Which has better reviews, Mobile ZAC or Threo?

Threo is rated higher. Mobile ZAC averages 3.8 out of 5 from 56 ratings, while Threo averages 5.0 from 2 ratings.

### Do Mobile ZAC or Threo have ads?

Neither Mobile ZAC nor Threo shows ads.

### Which is updated more often, Mobile ZAC or Threo?

Mobile ZAC ships an update every 3 months, and Threo every 3 days. Most recently, Mobile ZAC was updated on October 24, 2026 and Threo 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.*