# CallingU Softphone vs RemiPBX

CallingU Softphone and RemiPBX are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CallingU Softphone ships an update every 7 months, RemiPBX every 5 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CallingU Softphone | RemiPBX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (31 ratings)](https://appshunter.io/ios/app/remipbx/id1620868574/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | — | Free |
| Size | 109 MB | 115 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [FIBRE TELECOM NETWORKS LTD](https://appshunter.io/developer/1616517943) | [RemiPBX, Inc.](https://appshunter.io/developer/1620868576) |

## What reviewers say

### CallingU Softphone

[App page](https://appshunter.io/ios/app/callingu-softphone/id1616517941)

**In-app purchases:** none


### RemiPBX

[App page](https://appshunter.io/ios/app/remipbx/id1620868574)

This is a SIP softphone application that works with the RemiPBX platform. It offers features like push notifications, HD voice and video calls, and free calling between its users.

**Highlights:** SIP softphone functionality, Push notifications, HD voice and video, Free calling between app users

**In-app purchases:** none


## Frequently asked questions

### Is CallingU Softphone free?

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

### Is RemiPBX free?

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

### Do CallingU Softphone or RemiPBX have ads?

Neither CallingU Softphone nor RemiPBX shows ads.

### Which is updated more often, CallingU Softphone or RemiPBX?

CallingU Softphone ships an update every 7 months, and RemiPBX every 5 months. Most recently, CallingU Softphone was updated on November 7, 2026 and RemiPBX on November 3, 2026.

---

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