# 03plus vs uniConnect4

The clearest difference is update cadence: 03plus at fortnightly against uniConnect4's every 6 months. uniConnect4's advantage is iOS requirement (13.4 vs 17.6). 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.

03plus ships an update fortnightly, uniConnect4 every 6 months. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 03plus | uniConnect4 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Free | — |
| Size | 158 MB | 15 MB |
| Requires iOS | 17.6 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Magrex](https://appshunter.io/developer/573043527) | [S&I Co.,Ltd.](https://appshunter.io/developer/327530036) |

## What reviewers say

### 03plus

[App page](https://appshunter.io/ios/app/03plus/id966072922)

This app allows you to use a landline number on your smartphone without complex setup. Obtain a fixed-line number with a local area code and make/receive calls and send/receive faxes directly from your device. It's ideal for remote work and managing business communications efficiently.

**Highlights:** Use landline numbers on smartphone, Obtain local area codes nationwide, Send and receive faxes via app, Supports remote work and telecommuting, No construction or phone lines needed, Fast number acquisition (as short as 10 minutes)

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

**In-app purchases:** none


### uniConnect4

[App page](https://appshunter.io/ios/app/uniconnect4/id1503119894)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 03plus free?

03plus is free to download, with no in-app purchases.

### Is uniConnect4 free?

uniConnect4 is free to download, with no in-app purchases.

### Do 03plus or uniConnect4 have ads?

Neither 03plus nor uniConnect4 shows ads.

### Which is updated more often, 03plus or uniConnect4?

03plus ships an update fortnightly, and uniConnect4 every 6 months. Most recently, 03plus was updated on September 19, 2026 and uniConnect4 on September 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.*