OpenScape Mobile Pro vs Unify Office
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- VoIP and Video calling
- Seamless call transfer
- Wi-Fi call routing
- User presence status
- Contact management
- Instant messaging (Beta)
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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.
Unify Office
This all-in-one business communication app offers team messaging, video conferencing, and HD phone calls. It allows for seamless collaboration with file sharing, task management, and screen sharing. Users can also send faxes directly from their mobile devices.
- Team messaging with file sharing
- Real-time video meetings with screen sharing
- HD voice calls with business caller ID
- Send faxes from mobile devices
- Task management and shared calendar
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Work from anywhere with the leading all-in-one team messaging, video conferencing, and phone calling solution. You and your team can stay more connected, focused, and productive while staying home and keeping your social distances. Here’s how Unify Office helps teams stay efficient during this time: *Collaborate with superior team messaging* Message individuals or teams in real time to stay connected and bring remote workers together. Easily collaborate with file sharing, task management, and a shared calendar. All for free. No plan required. *Stay connected with seamless video meetings* Launch video meetings directly from the app for real-time collaboration with screen sharing, chat, and markup tools. *Make HD calls with an enterprise phone system* Get HD voice quality, call forwarding, and advanced call features all while displaying your business number as your caller ID. Use Wi-Fi, carrier minutes, or cellular data on any mobile device. *Send a fax from anywhere* Send files through your mobile device with secure and easy online faxing. Attach files from Dropbox, Box, Google Drive, or any Microsoft Office application, or submit faxes online via email. A Unify Office subscription is required for certain product features. Features will vary by product and plan. A free subscription is available with limited capabilities.
Screenshots
Verdict
The clearest difference is review sentiment: Unify Office at 100% against OpenScape Mobile Pro's 10%. OpenScape Mobile Pro's advantage is update cadence (fortnightly vs every 3 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OpenScape Mobile Pro ships an update fortnightly, Unify Office every 3 months. The most recent releases landed on September 17, 2026 and August 30, 2026 respectively.
| Parameter | OpenScape Mobile Pro | Unify Office |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 10.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 62 MB | 308 MB |
| Age rating | 4+ | 4+ |
| Developer | Unify Software and Solutions GmbH & Co.KG | RingCentral, Inc |
Customer experience
OpenScape Mobile Pro
Unify Office
In-app purchases
OpenScape Mobile Pro
No in-app purchases
Unify Office
No in-app purchases





