# Streams UC vs Mobile ZAC

The clearest difference is rating: Mobile ZAC at 4.0 against Streams UC's 3.3. Streams UC's advantage is update cadence (every 2 months vs every 3 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Mobile ZAC holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 44 and 49 respectively. Written reviews complicate that: 65% of Streams UC's written reviews are positive against 59% of Mobile ZAC's, so the app with the better star average is not the one people write more warmly about.

Streams UC ships an update every 2 months, Mobile ZAC every 3 months. The most recent releases landed on August 20, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Streams UC | Mobile ZAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (44 ratings)](https://appshunter.io/ios/app/streams-uc/id1231953697/reviews) | **[4.0 (49 ratings)](https://appshunter.io/ios/app/mobile-zac/id1589199857/reviews)** |
| Number of ratings | 44 | **49** |
| Positive reviews | **65.2% of reviews** | 59.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 58 MB | 60 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PanTerra Networks Inc.,](https://appshunter.io/developer/719584704) | [Zultys, Inc](https://appshunter.io/developer/420370950) |

## What reviewers say

### Streams UC

[App page](https://appshunter.io/ios/app/streams-uc/id1231953697)

This app unifies office communications, team messaging, and cloud file management into a single, secure mobile platform. Make and receive office calls, message teams with rich media, and securely sync and share files from anywhere.

**Highlights:** Full-featured softphone for office calls, Multimedia persistent team messaging, Real-time presence indication, Full video calling and conferencing, Secure file store, sync, and share, Unlimited secure cloud storage, Multi-factor authentication and HIPAA compliance

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Streams UC free?

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

### Is Mobile ZAC free?

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

### Which has better reviews, Streams UC or Mobile ZAC?

Mobile ZAC is rated higher. Streams UC averages 3.3 out of 5 from 44 ratings, while Mobile ZAC averages 4.0 from 49 ratings.

### Do Streams UC or Mobile ZAC have ads?

Neither Streams UC nor Mobile ZAC shows ads.

### Which is updated more often, Streams UC or Mobile ZAC?

Streams UC ships an update every 2 months, and Mobile ZAC every 3 months. Most recently, Streams UC was updated on August 20, 2026 and Mobile ZAC on September 14, 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.*