Comparison

Linphone vs Tel MCX

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

Head to head
About

Linphone

This open-source application provides free audio and video calls, as well as text messaging, over the internet. It allows users to stay reachable at all times via WiFi or mobile data, even when the app is closed. Enjoy secure communication and the ability to connect with traditional phone lines.

Highlights
  • High definition audio and video calls
  • Audio conference calls
  • Picture and file sharing
  • Push notifications for reachability
  • Secure communication with encryption
  • SIP-compliant VoIP service integration
Features
Read full description

Linphone is an open source internet SIP phone or Voice Over IP phone (VoIP). Linphone is an open source app offering free audio/video calls and text messaging. With Linphone, you can be reachable at any time, even if the app is closed, with a WiFi or 3G/4G internet connection. Linphone key features: * high definition audio and video calls * audio conference calls with various participants * pictures and file sharing * Linphone accounts reachable at any time, even if the app is closed (thanks to push notifications) * secure communication (encryption options) * compliant with a large number of SIP-compatible VoIP service providers allowing to reach everyone that has a "classic" phone line. Linphone is available on the main mobile and desktop operating systems and offers various specific features for advanced users (codecs, transport standard, encryption options, DTMF...). For more information, see Linphone project website: www.linphone.org Note for developers and professionals: Linphone can be rebranded and customized to meet specific needs. Contact Belledonne Communications www.belledonne-communications.com for any specific development query.

About

Tel MCX

Read full description

Teltronic T.Flex is an all-in-one mission critical communications powerhouse that connects people in a variety of ways in a wide range of situations. Its capabilities comprise voice and video calls, messaging, tracking (including indoor localization), task management and more. The uses of the app are versatile. For some users, it helps ensure smooth operation of their business. For others, it's part of the security toolset. Importantly, it can be vital in responding to dangerous incidents where lives depend on timely communication. Whether you're a logistics specialist, a guard on patrol, a firefighter or a police officer, you will appreciate the reliable power of Teltronic T.Flex, its focus and ease of use. This app is the client-side component of the TELTRONIC framework. TELTRONIC provides mission critical push-to-talk (MC-PTT) capabilities in LTE networks over the Internet Protocol (IP) and builds a comprehensive communications and emergency response solution on that foundation. The following are some highlights of the TELTRONIC features that Teltronic T.Flex implements. Voice communication features Call capabilities are at the heart of mission-critical communications. In addition to the obligatory group and individual calls, Teltronic T.Flex offers an extended set of voice and video call types. • Individual, group and channel calls • Emergency calls • Priority calls • Video calls • Offline user calls • Voice recording and playback Messaging features In situations where voice communication is not your first choice of format, use free-form or template-based text messages, or send arbitrary files over your TELTRONIC network. • Text and file exchange • Template-based status messages Lone worker protection features Intended for ensuring the safety of employees who are working in hazardous conditions, these features rely on sensor and battery charge data. These readings can indicate emergencies and cause alerts to be triggered. • Sensor state tracking • Automated alerts (such as Man Down) based on sensor data analysis • Battery charge monitoring Location and tracking features Always-on location tracking is a core component of Teltronic T.Flex operation and in many cases the reason to use the app. Access to location is required by dispatchers for ensuring personnel safety and tracking assets. • Subscriber identification and location markers • Detailed street view • Guard tour planning • Waypoints • Indoor localization Other features • Remote listening and camera • Task management and control Note that the feature set for your particular Teltronic T.Flex setup will be as broad or as lean as your TELTRONIC administrators configure it to be.

Screenshots

Linphone4 screens
Tel MCX4 screens

Verdict

The call

Linphone and Tel MCX are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

Linphone ships an update every 2 months, Tel MCX every 6 weeks. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

ScorecardNo meaningful differences
Linphone versus Tel MCX: the parameters behind the verdict, then further details
ParameterLinphoneTel MCX
PriceFreeFree
Rating2.4 (9 ratings) — better—
Positive reviews35.2% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size70 MB54 MB
Age rating4+4+
DeveloperBelledonne Communications SARLTASSTA GmbH

Bugs and requests

Linphone

Reported bugs

4 issues
  • Crashes on startup
  • Incoming calls not working properly
  • Settings not saving correctly
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Add support for multiple SIP accounts
  • Improve user interface and navigation
  • Provide more customization options
  • Enhance audio quality and noise cancellation

Tel MCX

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Linphone

No in-app purchases

None

Tel MCX

No in-app purchases

Questions

Is Linphone free?
Linphone is free to download, with no in-app purchases.
Is Tel MCX free?
Tel MCX is free to download, with no in-app purchases.
Do Linphone or Tel MCX have ads?
Neither Linphone nor Tel MCX shows ads.
Which is updated more often, Linphone or Tel MCX?
Linphone ships an update every 2 months, and Tel MCX every 6 weeks. Most recently, Linphone was updated on September 22, 2026 and Tel MCX on September 20, 2026.

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