Comparison

Unify Circuit vs OpenScape Mobile Pro

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

Head to head
About

Unify Circuit

This app provides a unified digital workspace for businesses, integrating messaging, file sharing, and real-time communication tools like voice, video, and screen sharing. It transforms any device into a mobile office, empowering flexible work arrangements.

Highlights
  • Unified digital workspace
  • Messaging and file sharing
  • Voice and video conferencing
  • Screen sharing
  • Whiteboarding
  • Mobile office functionality
Features
Read full description

Circuit is your digital workplace in the cloud. Everything is in one place: your messages, files, voice and video conferencing, screen sharing and whiteboarding. Your device becomes your mobile office, allowing you to work wherever you are: at home, in the office, on the go. You dictate how and where you work. Circuit - make your teamwork better.

About

OpenScape Mobile Pro

This app enhances mobile communications with VoIP and video capabilities, allowing seamless call transfers between devices and networks. It helps reduce cellular charges by routing calls over Wi-Fi.

Highlights
  • VoIP and Video calling
  • Seamless call transfer
  • Wi-Fi call routing
  • User presence status
  • Contact management
  • Instant messaging (Beta)
Features
Read full description

IMPORTANT NOTICE: OpenScape Mobile Pro is not a standalone client but part of a Unified Communications solution. In order to function correctly all mandatory solution components must be installed and in operational state. Be advised by your administrator before installing or upgrading the application. The solution requires an OpenScape UC applications server, an SBC server, a HAproxy, a mobile Façade server and a suitable PBX (OpenScape Voice or OpenScape 4000). Version compatibility matrix can be found in the product release notes. Today’s reality - A mobile, global, distributed and digital workplace. But you still need fast access to people, from wherever you are, at the lowest possible cost. OpenScape Mobile Pro enhances your communications experience with rich Voice over IP (VoIP) and Video capabilities from your iPhone or iPad. It also features iOS CallKit and PushKit support. Plus it allows you to seamlessly move calls between desk phone, Wi-Fi and cellular. OpenScape Mobile Pro reduces cellular charges through lower air-time minutes and roaming charges by making and receiving calls over Wi-Fi from your home, a Wi-Fi hotspot or on the corporate Wi-Fi. With a simple finger gesture, OpenScape Mobile’s call swipe lets you seamlessly move calls from your mobile device to a desktop device, and vice-versa, and from cellular network or the Wi-Fi. What you can do OpenScape Mobile Pro works in three modes (depending on the license you purchased): UC-only mode: Gives you access to OpenScape Unified Communications features (also see OpenScape UC) • Set your user presence status and preferred device or device list • Be reached on a single published phone number • See your OpenScape contacts and their presence status • Manage your OpenScape contacts and place calls to your contacts through your corporate network • Chat and send Instant Messages to other contacts (Beta) • Initiate ad-hoc conferences and join a conference, plus see the conference status • Utilize additional call control services (e.g. toggle, consultation, 3 party conference) • Activate rules and set time zone, location and status note • View missed calls in the Journal • Automatically import credentials from the OpenScape mobile client, if installed and configured Voice/Video-only mode: Gives you access to VoIP and Video, plus call transfer, call forwarding and call swipe. Combined mode: Gives you both UC and VoIP/Video functionality in a single mobile application.

Screenshots

Unify Circuit4 screens
OpenScape Mobile Pro4 screens

Verdict

The call

The clearest difference is rating: Unify Circuit at 2.7 against OpenScape Mobile Pro's 1.0. Unify Circuit also leads on review sentiment (51% vs 10%) and ratings volume (72 vs 2). OpenScape Mobile Pro's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 6 weeks). On price, ads, monetization model and device support 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. Unify Circuit sells 1 one-off in-app purchase. OpenScape Mobile Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Unify Circuit holds the better App Store score, 2.7 against 1.0. That said, the two scores are not equally well evidenced: Unify Circuit has 72 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 51% of Unify Circuit's written reviews are positive against 10% of OpenScape Mobile Pro's.

UpkeepUpdate frequency

Unify Circuit ships an update every 6 weeks, OpenScape Mobile Pro fortnightly. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

Scorecard6 real differences · 4 level
Unify Circuit versus OpenScape Mobile Pro: the parameters behind the verdict, then further details
ParameterUnify CircuitOpenScape Mobile Pro
PriceFreeFree
Rating2.7 (72 ratings) — better1.0 (2 ratings)
Positive reviews51.0% of reviews — better10.0% of reviews
Number of ratings72 — better2
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size191 MB62 MB
Age rating4+4+
DeveloperMitel Networks CorporationUnify Software and Solutions GmbH & Co.KG

Customer experience

Unify Circuit

All ratings72 ratings
Positive40.3%
Neutral4.2%
Negative55.6%
Written reviews49 reviews
Positive51.0%
Neutral6.1%
Negative42.9%

OpenScape Mobile Pro

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews30 reviews
Positive10.0%
Neutral3.3%
Negative86.7%

Bugs and requests

Unify Circuit

Reported bugs

37 issues
  • Application does not connect to the network
  • Does not allow calls
  • Since its last update it stopped working
  • Problems with the call service
  • Notifications unusable
Show 32 more
  • App doesn’t recognise password
  • Requested a new one and nothing came through
  • Customers cannot get it to work for them
  • Are always confused
  • Dial in by phone numbers are always busy or do not connect
  • No guest access
  • The app requires a user name and password which I do not have as a guest
  • The screen from the presenter was one of 4. The view was very small and I could not see the slides
  • When I tried to click to enlarge the screen it went blank and there was no way to return to the previous view
  • The notification badge on the app icon is not removed when the messages was viewed on a different device
  • If another user in a meeting mutes, unmutes, connects, or disconnects, then the speakerphone is turned off
  • Speaker keeps turning off during my meetings
  • Speaker turns off
  • It was working earlier and stopped working in apple watch
  • The phone as well as the desktop app are simply horrible
  • I have to keep entering my password
  • It logs me out and I have to go thru secure sign in
  • Customers can join
  • Poor interface
  • Connection quality is horrific
  • Circuit works sporadically and cannot be relied upon
  • Push is not supported. App must be running in background to get notifications
  • App crashes upon opening from direct link in calendar
  • Can’t login as guest
  • Did not work on my iPad
  • There is no Safari support
  • The app did not work on my iPad
  • Doesn't work!!!!
  • I can't log in
  • Not working in apple watch
  • App fails to connect to the network
  • App fails, problems with call service

Requested features

7 requests
  • Support for AirPods
  • Guest access
  • Add India dial-in number
  • Add South Korea dial-in number
  • Allow emojis
Show 2 more
  • Delete/archive conversations
  • Push notifications

OpenScape Mobile Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Unify Circuit

One-time1
  • RegionIAPFree
None

OpenScape Mobile Pro

No in-app purchases

Questions

Is Unify Circuit free?
Unify Circuit is free to download, with in-app purchases available.
Is OpenScape Mobile Pro free?
OpenScape Mobile Pro is free to download, with no in-app purchases.
Which has better reviews, Unify Circuit or OpenScape Mobile Pro?
Unify Circuit is rated higher. Unify Circuit averages 2.7 out of 5 from 72 ratings, while OpenScape Mobile Pro averages 1.0 from 2 ratings.
Do Unify Circuit or OpenScape Mobile Pro have ads?
Neither Unify Circuit nor OpenScape Mobile Pro shows ads.
Which is updated more often, Unify Circuit or OpenScape Mobile Pro?
Unify Circuit ships an update every 6 weeks, and OpenScape Mobile Pro fortnightly. Most recently, Unify Circuit was updated on September 23, 2026 and OpenScape Mobile Pro on September 17, 2026.

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