# BT OnePhone Mobile Application vs R4Telecom mobile access

The clearest difference is update cadence: BT OnePhone Mobile Application at every 2 months against R4Telecom mobile access's every 4 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.

BT OnePhone Mobile Application ships an update every 2 months, R4Telecom mobile access every 4 months. The most recent releases landed on October 4, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | BT OnePhone Mobile Application | R4Telecom mobile access |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/bt-onephone-mobile-application/id903053398/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | — |
| Size | 4 MB | 7 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BT OnePhone Ltd](https://appshunter.io/developer/903053401) | [Administratieburo Toepoel B.V.](https://appshunter.io/developer/1469040631) |

## What reviewers say

### BT OnePhone Mobile Application

[App page](https://appshunter.io/ios/app/bt-onephone-mobile-application/id903053398)

This app unifies your fixed lines, mobile phones, and phone system into a single hosted service. It allows customers to reach you on your mobile via your office number and provides control over your service on the go. Manage your presence, voicemails, and call history.

**Highlights:** Unified fixed and mobile communication, Call redirection ('Follow-me'), Presence status management, Voicemail access, Company directory with offline access, Local directory sync for contacts

**Features:** macOS Compatibility

**In-app purchases:** none


### R4Telecom mobile access

[App page](https://appshunter.io/ios/app/r4telecom-mobile-access/id1469040632)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BT OnePhone Mobile Application free?

BT OnePhone Mobile Application is free to download, with no in-app purchases.

### Is R4Telecom mobile access free?

R4Telecom mobile access is free to download, with no in-app purchases.

### Do BT OnePhone Mobile Application or R4Telecom mobile access have ads?

Neither BT OnePhone Mobile Application nor R4Telecom mobile access shows ads.

### Which is updated more often, BT OnePhone Mobile Application or R4Telecom mobile access?

BT OnePhone Mobile Application ships an update every 2 months, and R4Telecom mobile access every 4 months. Most recently, BT OnePhone Mobile Application was updated on October 4, 2026 and R4Telecom mobile access on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*