# RingRx vs CallHarborUC

The clearest difference is rating: CallHarborUC at 3.8 against RingRx's 2.6. RingRx's advantage is review sentiment (25% vs 0%) and update cadence (every 4 months vs every 9 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CallHarborUC holds the better App Store score, 3.8 against 2.6. That said, the two scores are not equally well evidenced: RingRx has 58 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 25% of RingRx's written reviews are positive against 0% of CallHarborUC's, so the app with the better star average is not the one people write more warmly about.

RingRx ships an update every 4 months, CallHarborUC every 9 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | RingRx | CallHarborUC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (58 ratings)](https://appshunter.io/ios/app/ringrx/id1289078819/reviews) | **[3.8 (8 ratings)](https://appshunter.io/ios/app/callharboruc/id6497948881/reviews)** |
| Number of ratings | **58** | 8 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 114 MB | 115 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Douglas Parent](https://appshunter.io/developer/1289078818) | [Active Solutions Group, Inc.](https://appshunter.io/developer/1222134241) |

## What reviewers say

### RingRx

[App page](https://appshunter.io/ios/app/ringrx/id1289078819)

This app extends your office phone system to your mobile device. Make and receive calls, manage voicemails, and transfer callers as if you were at your desk. It enables seamless extension-to-extension calling on the go.

**Highlights:** Mobile office phone system, Make and receive calls, Check voicemail, Transfer callers, Extension to extension calls

**In-app purchases:** none


### CallHarborUC

[App page](https://appshunter.io/ios/app/callharboruc/id6497948881)

This app allows you to use your professional phone extension on your mobile device. Make and receive calls from anywhere, and enjoy free in-app calls with other users.

**Highlights:** Carry your extension on mobile, Make and receive calls on the go, Log in with existing credentials, Free in-app calls among users, High-quality audio

**In-app purchases:** none


## Frequently asked questions

### Is RingRx free?

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

### Is CallHarborUC free?

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

### Which has better reviews, RingRx or CallHarborUC?

CallHarborUC is rated higher. RingRx averages 2.6 out of 5 from 58 ratings, while CallHarborUC averages 3.8 from 8 ratings.

### Do RingRx or CallHarborUC have ads?

Neither RingRx nor CallHarborUC shows ads.

### Which is updated more often, RingRx or CallHarborUC?

RingRx ships an update every 4 months, and CallHarborUC every 9 months. Most recently, RingRx was updated on October 12, 2026 and CallHarborUC on October 1, 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.*