# ZuluCall vs STN UC

The clearest difference is update cadence: STN UC at every 2 months against ZuluCall's every 6 months. 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.

ZuluCall ships an update every 6 months, STN UC every 2 months. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ZuluCall | STN UC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 104 MB | 54 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZuluCare, LLC](https://appshunter.io/developer/1512243230) | [PortSIP Solutions, Inc.](https://appshunter.io/developer/426903821) |

## What reviewers say

### ZuluCall

[App page](https://appshunter.io/ios/app/zulucall/id1512243232)

**Features:** macOS Compatibility

**In-app purchases:** none


### STN UC

[App page](https://appshunter.io/ios/app/stn-uc/id1569753155)

This application functions as a SIP-based softphone, enabling users to make and receive calls and instant messages over Wi-Fi or cellular data. It integrates with a specific PBX system to support push notifications for incoming calls and messages, even when the app is not actively running.

**Highlights:** SIP-based softphone, Wi-Fi or 4G/LTE calls, Instant messaging, Push notifications for calls, Push notifications for messages, Interworks with PortSIP PBX

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZuluCall free?

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

### Is STN UC free?

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

### Do ZuluCall or STN UC have ads?

Neither ZuluCall nor STN UC shows ads.

### Which is updated more often, ZuluCall or STN UC?

ZuluCall ships an update every 6 months, and STN UC every 2 months. Most recently, ZuluCall was updated on October 25, 2026 and STN UC on October 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.*