# SessionTalk Pro Softphone vs STN UC

The clearest difference is review sentiment: SessionTalk Pro Softphone at 63% against STN UC's 0%. SessionTalk Pro Softphone also leads on chart position (#79 vs unranked). STN UC's advantage is price (Free vs $6.99) and in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

STN UC is free to download; SessionTalk Pro Softphone costs $6.99 up front. SessionTalk Pro Softphone sells 1 one-off in-app purchase. STN UC asks for nothing beyond the download.

SessionTalk Pro Softphone ships an update every 5 weeks, STN UC every 2 months. The most recent releases landed on September 21, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | SessionTalk Pro Softphone | STN UC |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.1 (28 ratings)](https://appshunter.io/ios/app/sessiontalk-pro-softphone/id357429372/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | **63.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#79** | — |
| Size | 20 MB | 54 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SessionTalk Ltd](https://appshunter.io/developer/357429375) | [PortSIP Solutions, Inc.](https://appshunter.io/developer/426903821) |

## What reviewers say

### SessionTalk Pro Softphone

[App page](https://appshunter.io/ios/app/sessiontalk-pro-softphone/id357429372)

**Currently charting:** #79 Top Paid · Social Networking (US App Store)

This mobile SIP client enables high-quality enterprise VoIP calls over LTE and WiFi. It offers features like video calls, SMS messaging, multiple account support, and advanced call management, all with minimal battery impact. It integrates seamlessly with cloud telephony solutions.

**Highlights:** SIP VoIP calls over LTE and WiFi, Video Calls, SMS Messaging, Multiple simultaneous accounts, Advanced call management (transfer, conference), TLS Encryption and SRTP secure calls, Call Recording

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| G.729 Annex A Codec | $2.99 | one-time |


### 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 SessionTalk Pro Softphone free?

SessionTalk Pro Softphone costs $6.99, and also offers in-app purchases.

### Is STN UC free?

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

### Do SessionTalk Pro Softphone or STN UC have ads?

Neither SessionTalk Pro Softphone nor STN UC shows ads.

### Which is updated more often, SessionTalk Pro Softphone or STN UC?

SessionTalk Pro Softphone ships an update every 5 weeks, and STN UC every 2 months. Most recently, SessionTalk Pro Softphone was updated on September 21, 2026 and STN UC on August 20, 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.*