# 050 plus vs UNIVERGE ST500

The clearest difference is rating: UNIVERGE ST500 at 3.0 against 050 plus's 1.8. UNIVERGE ST500 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, review sentiment, ratings volume and update cadence 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 1.8. Both are backed by a comparable volume of ratings — 5 and 9 respectively. Written reviews complicate that: 17% of 050 plus'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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 050 plus | UNIVERGE ST500 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/050-plus/id432067123/reviews) | **[3.0 (9 ratings)](https://appshunter.io/ios/app/univerge-st500/id1280247418/reviews)** |
| Number of ratings | 5 | **9** |
| Positive reviews | **17.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 28 MB | 80 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NTT DOCOMO BUSINESS, INC.](https://appshunter.io/developer/291824371) | [NEC Corporation](https://appshunter.io/developer/423274625) |

## What reviewers say

### 050 plus

[App page](https://appshunter.io/ios/app/050-plus/id432067123)

This IP phone application provides an assigned 050 number for low-cost calls to mobile and landline phones. It includes voicemail, cost-saving estimates, and contact grouping. Note that new applications are no longer being accepted.

**Highlights:** IP phone function with 050 number, Voicemail with email attachment option, Cost-saving display, Contacts list grouping, Mute, speaker, and hold functions

**Features:** Vision Pro support

**In-app purchases:** none


### 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 050 plus free?

050 plus 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, 050 plus or UNIVERGE ST500?

UNIVERGE ST500 is rated higher. 050 plus averages 1.8 out of 5 from 5 ratings, while UNIVERGE ST500 averages 3.0 from 9 ratings.

### Do 050 plus or UNIVERGE ST500 have ads?

Neither 050 plus nor UNIVERGE ST500 shows ads.

### Which is updated more often, 050 plus or UNIVERGE ST500?

050 plus ships an update every 3 months, and UNIVERGE ST500 every 3 months. Most recently, 050 plus was updated on October 23, 2026 and UNIVERGE ST500 on October 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.*