Comparison

Intermedia Unite vs Mobile ZAC

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

Head to head
About

Intermedia Unite

This app transforms your mobile device into a comprehensive business communication hub. Make and receive calls, chat with colleagues, manage voicemails, and join meetings from anywhere. It integrates AI assistance for task simplification and offers advanced calling features for seamless teamwork on the go.

Highlights
  • Place and receive business calls
  • Real-time team chat and messaging
  • Host and join meetings
  • Voicemail transcription
  • Integrated AI Assistant
  • Call transfers and forwarding
  • Corporate contact list
Features
Read full description

Intermedia Unite® 4+ Unite Cloud Communications On-the-Go Download the Unite Mobile App for use with Intermedia Unite so you can call, chat, meet, and more, anywhere work takes you. The Unite Mobile App transforms your mobile phone into an essential collaboration tool, making teamwork on the go easier than ever. Place and receive calls, see who is available, chat with colleagues, host or join meetings, and manage voicemails, all from one application — any time, anywhere. Never Miss Important Calls Extend your business phone number and extension to your mobile phone, so you can place and receive calls on the go or even transfer calls from your desktop phone to your mobile device — seamlessly, without interruption. Easily Collaborate From Anywhere Your desktop chat is synchronised in real-time with your mobile device so you can stay connected and continue conversations no matter where you are. Now, with Unite AI Assistant, you can effortlessly access information and simplify your daily tasks using the power of generative AI technology. All Your Important Collaboration Tools Right on Your Mobile Device, Including: • An integrated, searchable corporate contact list • One-tap calling of your contacts • One-tap calling into conference bridges • The ability to manage multiple calls at once • Voicemail transcription • Advanced calling features: • Call transfers – blind and warm • Call Flip – quickly flip between mobile and desk phone during active calls • Call Forwarding - allows greater flexibility to customise call flows based on specific, predetermined schedules, number of rings, and routing instructions to other users or phone numbers • Team chat and messaging • Unite AI Assistant – an integrated generative AI tool, that provides quick, helpful responses to a variety of tasks via Unite chat • The ability to host and attend meetings • The ability to securely access and share files (requires Intermedia SecuriSync® Mobile App) IMPORTANT: Unite Mobile App requires an Intermedia Unite account. * LEGAL DISCLAIMERS 1. It is important that you understand the 911 policies before using this product. For more information on these policies, please see https://www.intermedia.com/assets/pdf/legal/911notifications.pdf 2. Call quality may be affected when using Wi-Fi or Cellular Data. 3. International and roaming data charges from your mobile carrier may apply. 4. You are responsible for ensuring that all call recordings comply with any applicable federal or state law (including consent requirements.) 5. By downloading Intermedia Unite, you agree to the terms of the End User Licence Agreement and acknowledge that you accept the Privacy Policy, and the AI Policy and Notifications within the following links (see https://www.intermedia.com/end-user-license-agreement, https://www.intermedia.com/intermedia-privacy-policy, and https://www.intermedia.com/ai-policy-notifications).

About

Mobile ZAC

Transform your mobile device into a fully functional business phone. This app integrates with Zultys systems to provide remote and mobile employees with essential communication tools, including video conferencing, instant messaging, and call management.

Highlights
  • Video conferencing
  • Scheduled conferences
  • Call logs with filtering
  • Instant messaging
  • Call attached data
  • Retrieve active calls
  • Agent roles & queue monitor
Read full description

Wherever your job takes you, make your mobile device your business phone. Mobile ZAC allows remote and mobile employees to manage business communications while utilizing the same tools as Zultys Advanced Communicator (ZAC) and our browser-based Web ZAC. We bring significant cost savings and reliability to our customers by including our mobile app with every user bundle for every Zultys system. Feature Overview: • Support for AI Tools: Real-time closed captions, real-time sentiment analysis, and live transcription with searchable post-call transcripts. • Mobile Network Calling: Place outbound and receive inbound business calls over your mobile carrier network. • iOS Recents Control: A configurable option to control whether Mobile ZAC calls appear in the native Phone app’s Recents list. • Department Filtering: Quickly filter company contact list by department or sub-department, and hide system services like auto attendants and call groups. • Single Sign-On (SSO) Support: SAML SSO has been developed and tested with Entra ID and ClassLink, with the potential to support other identity providers such as Okta, Duo, Auth0, and OneLogin. • Inbound and Outbound SMS and MMS for Call Group Agents: Agents in Operator, ACD, and ICC groups can send and receive SMS and MMS messages. • Web Chat for Call Group Agents: Agents in Operator, ACD, and ICC groups can now receive real-time message notifications from website visitors and respond. • Video Conferences: Easily host or join a conference, whether it’s for a group or one-on-one. Choose from three different modes to match your preferences: Speaker, Grid, or Pin an individual user. • Scheduled Conferences: Now users can view, join, and schedule conferences directly from the mobile app. • Call Logs: You can view complete phone call records and review the call history. Easily find the exact information you need with new filter and sort options. • Emojis: Elevate your conversations with native emojis. • Call Attached Data: Accessing and completing Call Attached Data while on the go is now easier than ever. • Retrieve Call: Move an active call from one device to another quickly and effortlessly. This feature gives you flexibility and an uninterrupted call experience. • Agent Roles & Queue Monitor: Agent roles and queue monitor have now been added for call center functionality on the go. More Feature Highlights: • Access Call Attached Data, recordings, transcripts, and voicemails from the call log • View presenter screen sharing for one-on-one and conference calls • System speed dial access • Ability for users to reply to and forward any message • Password reset link • Network switching between cellular and Wi-Fi networks while maintaining calls • Real-time presence status and presence notes • Instant message with internal and external parties with IM alerts • SMS support • Call group support Mobile ZAC is supported on systems running MX version Release 17 and above. Access to the latest capabilities requires MX Release 19.

Screenshots

Intermedia Unite4 screens
Mobile ZAC4 screens

Verdict

The call

The clearest difference is update cadence: Intermedia Unite at monthly against Mobile ZAC's every 3 months. Intermedia Unite also leads on ratings volume (267 vs 49). Mobile ZAC's advantage is review sentiment (59% vs 50%) and iOS requirement (15.1 vs 17.0). On price, rating, ads and in-app purchases 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 — 4.1 for Intermedia Unite against 4.0 for Mobile ZAC. That said, the two scores are not equally well evidenced: Intermedia Unite has 267 ratings behind it against 49, so its average is the more settled of the two. Written reviews are what separate them: 50% of Intermedia Unite's written reviews are positive against 59% of Mobile ZAC's.

UpkeepUpdate frequency

Intermedia Unite ships an update monthly, Mobile ZAC every 3 months. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

Scorecard4 real differences · 6 level
Intermedia Unite versus Mobile ZAC: the parameters behind the verdict, then further details
ParameterIntermedia UniteMobile ZAC
PriceFreeFree
Rating4.1 (267 ratings) — better4.0 (49 ratings)
Positive reviews50.5% of reviews59.1% of reviews — better
Number of ratings267 — better49
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size152 MB60 MB
Age rating4+4+
DeveloperIntermedia.net, Inc.Zultys, Inc

Customer experience

Intermedia Unite

All ratings267 ratings
Positive75.7%
Neutral3.7%
Negative20.6%
Written reviews107 reviews
Positive50.5%
Neutral9.3%
Negative40.2%

Mobile ZAC

All ratings44 ratings
Positive79.5%
Neutral2.3%
Negative18.2%
Written reviews22 reviews
Positive59.1%
Neutral9.1%
Negative31.8%

Bugs and requests

Intermedia Unite

Reported bugs

5 issues
  • App crashes on iOS 14 devices
  • Inability to answer or hear calls through the app
  • Calls getting stuck in limbo or not connecting properly
  • Inconsistent behavior when answering calls from the app
  • Accidental call dialing due to lack of confirmation prompts

Requested features

5 requests
  • Add search functionality for SMS messages
  • Allow custom ringtone assignment for calls
  • Improve Apple Watch integration and notifications
  • Enhance silent/do-not-disturb mode options
  • Add support for iPad landscape mode and multitasking

Mobile ZAC

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Intermedia Unite

No in-app purchases

None

Mobile ZAC

No in-app purchases

Questions

Is Intermedia Unite free?
Intermedia Unite is free to download, with no in-app purchases.
Is Mobile ZAC free?
Mobile ZAC is free to download, with no in-app purchases.
Which has better reviews, Intermedia Unite or Mobile ZAC?
Intermedia Unite is rated higher. Intermedia Unite averages 4.1 out of 5 from 267 ratings, while Mobile ZAC averages 4.0 from 49 ratings.
Do Intermedia Unite or Mobile ZAC have ads?
Neither Intermedia Unite nor Mobile ZAC shows ads.
Which is updated more often, Intermedia Unite or Mobile ZAC?
Intermedia Unite ships an update monthly, and Mobile ZAC every 3 months. Most recently, Intermedia Unite was updated on September 24, 2026 and Mobile ZAC on September 14, 2026.

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