SCADA HMI Client vs HMI/SCADA Mobile Access
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SCADA HMI Client
Access and control SCADA and HMI applications remotely from your Apple device. Securely connect to servers for real-time data interaction and visualization. Adjust polling rates for optimal performance on various network conditions.
- Remote SCADA/HMI visualization
- Secure server connection
- Real-time data interaction
- Configurable polling rate
- Project-level security validation
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SCADA HMI Client app for your Apple® iPad or iPhone allows client visualization and interaction on your device from SCADA (supervisory control and data acquisition) and HMI (Human Machine Interfaces) applications running on remote desktop computers. The Security is a key component on the SCADA HMI Client, therefore the connection with the server has validation at the Project level. It means that besides having the server address and project name, the user name and password provided when running the application must match the authorization defined at that specific project scope. The SCADA HMI Client connects with host servers running SCADA or HMI Web Server applications compatible with Tatsoft communication specification, allowing the remote real-time interaction with the server data and graphics. Technical notes: The default polling rate to get new information from the server is 250ms. That configuration is on the Polling settings and the number is defined in quarters of second. When using the client on a slower network or an internet server, it may be necessary to modify that value. One good way to verify the proper polling rate is to verify the typical “PING” tie from your location to the remote server; the polling rate should be bigger than the ping time, typically two times to five times. It is important to be aware that when an iPad or iPhone is connected to the SCADA HMI Web Server, one client license is consumed. The number of clients that can be simultaneously connected with each server depends on the server model and license key; contact your server provider or our technical support for information regarding server requirements and compatibility. For information on known issues or to report requests contact Tatsoft support services, sending email to support@tatsoft.com with your contact information and a brief description of your request; our team will open an support ticket and report back with your solution or contact you demanding for additional information.
HMI/SCADA Mobile Access
Access and interact with HMI and SCADA applications remotely. Monitor dashboards, acknowledge alarms, and receive notifications for efficient operations and preventive maintenance, especially for remote facilities.
- Secure remote access to HMI/SCADA
- View dashboards and machine status
- Acknowledge and trace alarms
- Receive immediate problem notifications
- Support for preventive maintenance alerts
- Remote adjustments and control
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Mobile Access allows you to securely view information and interact with your HMI and SCADA applications. The Mobile Access app connects to a Mobile Access server hosted by your HMI and SCADA applications. Using your HMI and SCADA application development platform, developers can develop screens, useful widgets, and animations that can be deployed to mobile devices. Benefits to using the Mobile Access app include: Efficiency: Being able to securely access a machine remotely or view dashboards across a plant floor gives machine operators and process managers a chance to make adjustments even when they're not able to be physically at the machine. This may include stopping a machine when certain values are not met, or knowing at a glance whether or not an entire plant is operating at the expected levels. A mobile SCADA solution is particularly valuable to anyone with remote facilities in hard-to-access places. Preventive care: A mobile solution can not only make things more efficient, it can also help guard against disaster. If machine operators and managers are notified of problems immediately wherever they are, it's possible to take action before product is wasted, or the machine is damaged. Regular alerts can also let users know when it is time to perform preventive maintenance on machines such as lubrication or filter replacement. Acknowledge alarms and maintain traceability: You can monitor the active alarms and acknowledge them from the mobile device. Some regulations, such as FDA 21 CFR Part 11, require that alarms be acknowledged and traced to the user who acknowledged them. The Mobile Access app requires that the Mobile Access server be version 8.1 SP2 or later. If you are using an earlier version, then please contact your software provider for instructions on how to install a patch to your Mobile Access server so that it can support the Mobile Access app. Works as Mobile Access client for AVEVA Edge and Edge based products. Not for use with other AVEVA products at this time.
Screenshots
Verdict
The clearest difference is update cadence: SCADA HMI Client at every 6 weeks against HMI/SCADA Mobile Access's every 49 months. SCADA HMI Client also leads on iOS requirement (8.0 vs 11.0). HMI/SCADA Mobile Access's advantage is ratings volume (3 vs 1). On price, rating, review sentiment and ads 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.
On the App Store both sit at effectively the same score — 5.0 for SCADA HMI Client against 5.0 for HMI/SCADA Mobile Access. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SCADA HMI Client ships an update every 6 weeks, HMI/SCADA Mobile Access every 49 months. The most recent releases landed on June 10, 2026 and June 1, 2026 respectively.
| Parameter | SCADA HMI Client | HMI/SCADA Mobile Access |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 6 weeks — better | Every 49 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 9 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | TATSOFT LLC | AVEVA GROUP PLC |
Customer experience
SCADA HMI Client
HMI/SCADA Mobile Access
In-app purchases
SCADA HMI Client
No in-app purchases
HMI/SCADA Mobile Access
No in-app purchases
Questions
Is SCADA HMI Client free?
Is HMI/SCADA Mobile Access free?
Which has better reviews, SCADA HMI Client or HMI/SCADA Mobile Access?
Do SCADA HMI Client or HMI/SCADA Mobile Access have ads?
Which is updated more often, SCADA HMI Client or HMI/SCADA Mobile Access?
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