# Call One UC vs Telefox

The clearest difference is review sentiment: Telefox at 100% against Call One UC's 50%. Telefox also leads on rating (5.0 vs 4.2) and update cadence (every 6 days vs every 4 months). Call One UC's advantage is in-app purchases (none vs 2) and ratings volume (29 vs 1). On price and ads there is nothing between them.

Both are free to download. Telefox sells 1 in-app purchase, starting at $2.99 per month. Call One UC asks for nothing beyond the download.

Telefox holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Call One UC has 29 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Call One UC's written reviews are positive against 100% of Telefox's.

Call One UC ships an update every 4 months, Telefox every 6 days. The most recent releases landed on September 14, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Call One UC | Telefox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (29 ratings)](https://appshunter.io/ios/app/call-one-uc/id1358793823/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/telefox/id6477368155/reviews)** |
| Number of ratings | **29** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 148 MB | 77 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Call One, Inc.](https://appshunter.io/developer/1358793822) | [Omni Story Co., Ltd.](https://appshunter.io/developer/1707132974) |

## What reviewers say

### Call One UC

[App page](https://appshunter.io/ios/app/call-one-uc/id1358793823)

Manage your home or office telephony services remotely. Make and receive calls using your landline number over WiFi or cellular data, and seamlessly transfer calls between devices. Includes features for conference calls, voicemail, and fax management.

**Highlights:** Join audio/video conferences, Make/receive calls with landline number, Transfer calls between devices, Add video to calls, Use landline caller ID, Voicemail and fax playback, Transcribed voice messages

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


### Telefox

[App page](https://appshunter.io/ios/app/telefox/id6477368155)

Connect globally with voice and video calls, and messaging, using only your email address. Enjoy secure, seamless communication without needing phone numbers or worrying about roaming fees. It's free to start and offers features for both personal and professional use.

**Highlights:** Email-based voice and video calls, Real-time messaging, Group management and virtual meetings, Digital business card sharing, Password-free sign-in, Web access

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $2.99 | per month |


## Frequently asked questions

### Is Call One UC free?

Call One UC is free to download, with no in-app purchases.

### Is Telefox free?

Telefox is free to download, with in-app purchases available.

### Which has better reviews, Call One UC or Telefox?

Telefox is rated higher. Call One UC averages 4.2 out of 5 from 29 ratings, while Telefox averages 5.0 from 1 ratings.

### Do Call One UC or Telefox have ads?

Neither Call One UC nor Telefox shows ads.

### Which is updated more often, Call One UC or Telefox?

Call One UC ships an update every 4 months, and Telefox every 6 days. Most recently, Call One UC was updated on September 14, 2026 and Telefox on August 26, 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.*