Comparison

AustenTel ACS vs Telvatec Calling

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AustenTel ACS

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
Read full description

AustenTel ACS puts your organization's phone system in your pocket. Make and receive calls with your work extension, check voicemail with automatic transcription, message teammates, and stay reachable wherever work takes you. ACS is the AustenTel Advanced Communication System — a carrier-grade, cloud-hosted business phone platform. The ACS app connects to your organization's ACS service, so your business extension rings your iPhone like a native call. FEATURES • Your work extension on your iPhone — incoming calls arrive like any other call, even when the app is closed • HD voice with secure signaling and media (TLS + SRTP) • Visual voicemail with automatic transcription • Team messaging with photo attachments • Company directory with live presence • Call history synced across your devices • Hold, transfer, and conference controls • Organization-wide instant alerts (where enabled by your admin) GETTING STARTED The ACS app is for organizations using AustenTel ACS phone service. Your administrator provisions your extension and sends you a setup code or QR — enter or scan it and you're connected. There is no self-serve account setup. Don't have ACS yet? Learn more at austentel.com or call 800.817.7845. The ACS app requires an active AustenTel ACS extension.

About

Telvatec Calling

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
Read full description

Experience crystal-clear international calling with unmatched reliability—only with Telvatec. Designed for global citizens, Telvatec connects you to loved ones, friends and businesses worldwide with unbeatable voice quality and affordable rates. Whether you're calling Africa, Asia, Europe, or beyond, Telvatec ensures your voice is heard. No hidden fees. No dropped calls. Just high-quality conversations powered by Telvatec’s smart connectivity and commitment to secure communication.

Screenshots

AustenTel ACS4 screens
Telvatec Calling4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
AustenTel ACS versus Telvatec Calling: the parameters behind the verdict, then further details
ParameterAustenTel ACSTelvatec Calling
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better2
Update frequencyEvery 6 weeks — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size5 MB62 MB
Age rating4+4+
DeveloperAusten Consultants, LLCTELVATEC LLC

Customer experience

AustenTel ACS

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Telvatec Calling

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AustenTel ACS

No in-app purchases

None

Telvatec Calling

No in-app purchases

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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