# AustenTel ACS vs Telvatec Calling

The clearest difference is update cadence: AustenTel ACS at every 6 weeks against Telvatec Calling's every 9 months. Telvatec Calling's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for AustenTel ACS against 5.0 for Telvatec Calling. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

AustenTel ACS ships an update every 6 weeks, Telvatec Calling every 9 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | AustenTel ACS | Telvatec Calling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/austentel-acs/id6444466517/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/telvatec-calling/id6753214170/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | Free | Free |
| Size | 5 MB | 62 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Austen Consultants, LLC](https://appshunter.io/developer/1654860193) | [TELVATEC LLC](https://appshunter.io/developer/1781947503) |

## What reviewers say

### AustenTel ACS

[App page](https://appshunter.io/ios/app/austentel-acs/id6444466517)

Manage your business phone system from your mobile device. Make and receive calls with your work extension, access transcribed voicemails, and message colleagues. Stay connected and productive wherever you are.

**Highlights:** Work extension on mobile, HD voice calls, Visual voicemail with transcription, Team messaging, Company directory, Call history sync

**In-app purchases:** none


### Telvatec Calling

[App page](https://appshunter.io/ios/app/telvatec-calling/id6753214170)

Make reliable, crystal-clear international calls worldwide at affordable rates. Enjoy secure communication with no hidden fees or dropped calls, connecting you to friends, family, and businesses globally.

**Highlights:** Crystal-clear international calling, Unmatched reliability, Affordable rates, Secure communication, No hidden fees, No dropped calls

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AustenTel ACS free?

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

### Is Telvatec Calling free?

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

### Which has better reviews, AustenTel ACS or Telvatec Calling?

AustenTel ACS and Telvatec Calling are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do AustenTel ACS or Telvatec Calling have ads?

Neither AustenTel ACS nor Telvatec Calling shows ads.

### Which is updated more often, AustenTel ACS or Telvatec Calling?

AustenTel ACS ships an update every 6 weeks, and Telvatec Calling every 9 months. Most recently, AustenTel ACS was updated on October 30, 2026 and Telvatec Calling on October 30, 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.*