# Linphone vs UNIVERGE ST500

The clearest difference is review sentiment: Linphone at 35% against UNIVERGE ST500's 13%. UNIVERGE ST500's advantage is rating (3.0 vs 2.7). On price, ratings volume, update cadence 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.

UNIVERGE ST500 holds the better App Store score, 3.0 against 2.7. Both are backed by a comparable volume of ratings — 10 and 9 respectively. Written reviews complicate that: 35% of Linphone's written reviews are positive against 13% of UNIVERGE ST500's, so the app with the better star average is not the one people write more warmly about.

Linphone ships an update every 2 months, UNIVERGE ST500 every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Linphone | UNIVERGE ST500 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (10 ratings)](https://appshunter.io/ios/app/linphone/id360065638/reviews) | **[3.0 (9 ratings)](https://appshunter.io/ios/app/univerge-st500/id1280247418/reviews)** |
| Number of ratings | **10** | 9 |
| Positive reviews | **35.2% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 69 MB | 80 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Belledonne Communications SARL](https://appshunter.io/developer/694969034) | [NEC Corporation](https://appshunter.io/developer/423274625) |

## What reviewers say

### Linphone

[App page](https://appshunter.io/ios/app/linphone/id360065638)

This open-source app provides free audio/video calls and text messaging over the internet. It allows users to be reachable at any time via WiFi or mobile data, offering secure communication and file sharing. Advanced users can customize various settings for SIP-compatible VoIP services.

**Highlights:** High definition audio/video calls, Audio conference calls, Picture and file sharing, Always reachable with push notifications, Secure communication options, SIP-compatible VoIP integration

**Features:** Siri integration, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Good call quality
- 🚀 Works well with SIP providers
- 💡 Useful features like DTMF support

**What reviewers complain about**

- 🐛 Buggy, crashes frequently
- 🔑 Issues with account setup and configuration
- 🔒 Security concerns with password handling
- 🔋 Unreliable background/push notification support

**Reported bugs**

- Crashes on startup
- Incoming calls not working properly
- Settings not saving correctly
- Compatibility issues with newer iOS versions

**Requested features**

- Add support for multiple SIP accounts
- Improve user interface and navigation
- Provide more customization options
- Enhance audio quality and noise cancellation


### UNIVERGE ST500

[App page](https://appshunter.io/ios/app/univerge-st500/id1280247418)

This app allows users to make and receive business calls from their mobile devices as if they were at their desk. It integrates with iOS contacts and offers various call management features, simplifying business communications and potentially reducing mobile call costs.

**Highlights:** Make and receive business calls from mobile, Integrates with iOS phone contacts, Call history grouped by contact, Hands-free and Bluetooth headset support, Video call capabilities, Security and encryption via TLS and SRTP, Voicemail access and message waiting indicator

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Linphone free?

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

### Is UNIVERGE ST500 free?

UNIVERGE ST500 is free to download, with no in-app purchases.

### Which has better reviews, Linphone or UNIVERGE ST500?

UNIVERGE ST500 is rated higher. Linphone averages 2.7 out of 5 from 10 ratings, while UNIVERGE ST500 averages 3.0 from 9 ratings.

### Do Linphone or UNIVERGE ST500 have ads?

Neither Linphone nor UNIVERGE ST500 shows ads.

### Which is updated more often, Linphone or UNIVERGE ST500?

Linphone ships an update every 2 months, and UNIVERGE ST500 every 3 months. Most recently, Linphone was updated on November 6, 2026 and UNIVERGE ST500 on November 3, 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.*