# eRAMx vs CallHarborUC

The clearest difference is update cadence: eRAMx at every 5 weeks against CallHarborUC's every 9 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.

eRAMx ships an update every 5 weeks, CallHarborUC every 9 months. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | eRAMx | CallHarborUC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (8 ratings)](https://appshunter.io/ios/app/callharboruc/id6497948881/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 9 months |
| Monetization | — | Free |
| Size | 26 MB | 115 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ABK Remote Drug Testing, Inc.](https://appshunter.io/developer/1289419704) | [Active Solutions Group, Inc.](https://appshunter.io/developer/1222134241) |

## What reviewers say

### eRAMx

[App page](https://appshunter.io/ios/app/eramx/id1289419705)

**Features:** Vision Pro support

**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 eRAMx free?

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

### Is CallHarborUC free?

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

### Do eRAMx or CallHarborUC have ads?

Neither eRAMx nor CallHarborUC shows ads.

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

eRAMx ships an update every 5 weeks, and CallHarborUC every 9 months. Most recently, eRAMx was updated on October 5, 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.*