cMT Viewer vs Unitronics' Remote Operator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
cMT Viewer
This application allows for the visual control of HMI hardware and software directly on an iPad. It offers seamless integration with powerful project editor software, enabling intuitive multi-touch gesture operation for data display and trend analysis.
- Multiple iPad clients
- Simultaneous operation of multiple HMI servers
- Intuitive multi-touch gestures
- Fluid and vivid visualization
- Account management for access privileges
- Hot project switching
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Breaking through the architecture of HMI hardware and software, we freed HMI from its traditional combination with LCD panel and touch screen, and perfectly integrated HMI’s visual control into iPad with the powerful EasyBuilder project editor software. Not only do we inherit the advantage of traditional HMI and the motto of “Make Things Easy,” we also encourage infinite innovation in HMI technology and lead HMI into the cloud. FEATURE ● Multiple iPad Clients A cMT-SVR can be operated by three iPads simultaneously, and by Account Management in EasyBuilder, user accounts and access privileges can be managed properly. ● One iPad, Multiple cMT-SVRs An iPad can connect to operate up to 253 cMT-SVRs, and 3 of the connected cMT-SVRs can be set as hot projects for instant switch in operation. ● Break with Tradition Embrace the Trend Through the integration of iPad and EasyBuilder, cMT Viewer, requiring no additional learning, break the public image of traditional HMI operation. By multi-touch-gesture-enabled Trend Display, Data Display, etc., you can immediately experience fluid and vivid visualization as well as the most intuitive HMI operation. Learn more: http://www.weintek.com/global/
Unitronics' Remote Operator
Access and control Unitronics controllers remotely from your smartphone or tablet. Monitor automation processes, view HMI screens, and manage alarms and data in real-time. Configure and organize multiple controllers for efficient operation.
- Remote access to Vision and Samba controllers
- Monitor and control automation processes
- View HMI screens as if physically present
- Manage alarms and process trends
- Organize multiple controllers in groups
- Secure access with password protection
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The Remote Operator application enables you to remotely access your Unitronics controllers using your smartphone and tablet. Via the application, you can view and operate the controller’s HMI —as if you are physically touching the controller. Using Remote Operator you monitor automation processes, press keys and touch HMI objects, change parameter values, view Alarms and process value Trends. You can define and access multiple controllers from a single device. Main Features - Remotely access Vision and Samba controllers via Internet or wireless LAN - Remotely control/monitor automation processes and machines - Control many controllers from a single mobile device. - View operational conditions, Alarms, data, and Trends in real time - Configure communication channels for multiple controllers - Organize controllers in Favorites and Groups - Shareable Configurations – send/share your list of controllers to another device - Security via Password: prevent unauthorized entry - Pinch to zoom *Supported Controllers Minimum OS version: iOS 7+ Supported Controllers: V350, V430, V700, V570, V1040, V1210, SM35, SM43, SM70 View and Download the QuickStart Guide: http://www.unitronics.com/Unitronics_Apps/Unitronics_Remote_Operator_AppQuickStart.pdf *First-time Use 1. Open Remote Operator. 2. Create a Password, set up password recovery. 3. Tap OK, the app opens an empty Favorites screen. **Adding PLCs to Favorites/Groups Tap + to add PLCS, configure controllers and communication channels. Enter: - PLC Nickname Optional. Must be unique. - PLC Name Must exactly match the actual PLC Name, including capitals. - IP Address/Host, TCP and Port Defines communication channel NOTE: 1. IP Address & Port MUST be a unique combination. 2. Format: Incorrect 10.000.000.037 Correct 10.0.0.37. - Group Name Tap to open the Group list. Add to Favorites: When checked, the PLC is added to the Favorites list as well as a Group. When finished, if desired, tap Check PLC Connection. Tap OK to save the PLC and return to Favorites. To delete a PLC, swipe left. *Adding Groups 1. In the Favorites screen, tap the right facing arrow to open Groups. 2. Tap + to add a Group. 3. Enter Group Name and Comment. 4. Tap OK to add the Group. 5. Tap left facing arrow to return to Favorites. 6. Tap More (three bars, upper right side of the screen) to Hide/Show the Application Bar. *Using Remote Operator In Favorites or Groups, a PLC marked with a green hand is active. Access it remotely by tapping it. During a session, your mobile screen displays the PLC's HMI panel, along with a red Application Bar. This Bar shows (from left to right): - Connected PLC name - Connection duration - Buttons: > Switch modes: View Only /Full Control. Disable/enable buttons and touch properties on the HMI panel displayed on your mobile > Set Refresh rate (seconds) > Pause Remote session > Exit Remote session **PLC Information To view /edit, tap i: PLC Communication - To edit details, tap fields; set View mode: View Only/Full Control. - Check the PLC Connection. PLC System Info - When connected: Tap Get PLC Information to view PLC OS data. - When not connected: Shows details of last session. PLC Location Info - Tap to enter data: location, contact details, comments, edit the PLC’s group. - Delete PLC from Favorites: uncheck Add to Favorites. *Application Settings Tap More to show Application Bar if hidden, then tap Settings button. Startup Page: Remote Operator automatically loads/checks communications for all PLCs on Startup page Sharing Settings: 1. Tap Share, follow instructions to send the file Share.unitronics. 2. When Share.unitronics is received on the second device, tap to open it. Remote Operator opens the Share file. Remote Operator MUST be installed on the receiving device.
Screenshots
Verdict
The clearest difference is rating: cMT Viewer at 4.6 against Unitronics' Remote Operator's 4.0. cMT Viewer also leads on update cadence (every 2 months vs every 20 months) and ratings volume (8 vs 2). Unitronics' Remote Operator's advantage is review sentiment (67% vs 43%) and iOS requirement (7.0 vs 12.0). 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.
cMT Viewer holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews complicate that: 43% of cMT Viewer's written reviews are positive against 67% of Unitronics' Remote Operator's, so the app with the better star average is not the one people write more warmly about.
cMT Viewer ships an update every 2 months, Unitronics' Remote Operator every 20 months. The most recent releases landed on August 8, 2026 and June 1, 2026 respectively.
| Parameter | cMT Viewer | Unitronics' Remote Operator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (8 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | 42.9% of reviews | 66.7% of reviews — better |
| Number of ratings | 8 — better | 2 |
| Update frequency | Every 2 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 67 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Weintek Labs., Inc. | Unitronics |
Customer experience
cMT Viewer
Unitronics' Remote Operator
In-app purchases
cMT Viewer
No in-app purchases
Unitronics' Remote Operator
No in-app purchases
Questions
Is cMT Viewer free?
Is Unitronics' Remote Operator free?
Which has better reviews, cMT Viewer or Unitronics' Remote Operator?
Do cMT Viewer or Unitronics' Remote Operator have ads?
Which is updated more often, cMT Viewer or Unitronics' Remote Operator?
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