Comparison

Sm@rtClient vs MaintMaster Inspector

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

Head to head
About

Sm@rtClient

Remotely operate and monitor industrial HMI systems from your mobile device. Access operator stations, view system layouts, and interact with hardware buttons via touch input. Supports various SIMATIC HMI systems and offers both view-only and coordinated operation modes.

Highlights
  • Remote operation of HMI systems
  • View-only monitoring mode
  • Coordinated operation with active remote control
  • Access to hardware buttons
  • Automatic HMI panel detection
  • Browser-based access to Unified Panels
  • WebView access to PLC webpages
Read full description

The SIMATIC WinCC Sm@rtClient App, in combination with the SIMATIC WinCC Sm@rtServer, allows remote mobile operation and observation of SIMATIC HMI systems over Industrial Ethernet/WLAN (wireless). The app offers support for WebClient on Unified Panels, expanding accessibility through browser-based interfaces. It also supports WebView-based access to legacy webpages on PLCs, enabling users to access View of Things (VoT) pages. The app is available for SIMATIC HMI Comfort Panels, SIMATIC WinCC Runtime Advanced, SIMATIC Unified Panels, and PLCs. The scope of the Sm@rtClient concept allows an operator station to make its display available to the app. The station takes on the role of a Sm@rtServer, while the smartphone or tablet acts as the Sm@rtClient. Sm@rtServer functionality can be easily enabled with a single mouse click in the device’s configuration settings. The screen can be displayed on the Sm@rtClient in "View only" mode, or a full-fledged, coordinated operation can be set up. Coordinated operation ensures that only one user has control at a time β€” either the operator station with Sm@rtServer or the Sm@rtClient app. Additionally, the app supports easy connection setup through automatic HMI panel detection. The Sm@rtClient app not only shows the selected HMI screen but also mirrors the complete device layout, including functional hardware buttons. This enables users to interact with the system as if they were physically present in front of the panel β€” except buttons are triggered via touch input on the mobile screen. Functions: * Access to operator stations for the operation and setup of large, spatially separated machines * Flexible solution for safe and location-independent access to operator stations * Global access to plants (e.g. for service or maintenance staff) * Full access to hardware buttons on your Comfort Panel * Easy discovery of available Sm@rtServers * Coordinated operation through active remote control * View-only mode for passive monitoring * Support for WebClient on Unified Panels for browser-based access * Support for WebView-based access to legacy webpages on PLCs, enabling access to View of Things (VoT) pages

About

MaintMaster Inspector

Features
Read full description

With MaintMaster Inspector you can now manage all your checklists in your mobile device. The built in decision support will help you to act on the right things, and get all deviations automatically followed up by new work orders in MaintMaster. All reports are stored in the cloud with full traceability. Quick and easy you now have all your information available whenever needed. Time to digitalize all your paperwork.

Screenshots

Sm@rtClient4 screens

Verdict

The call

The clearest difference is update cadence: MaintMaster Inspector at every 3 weeks against Sm@rtClient's every 10 months. MaintMaster Inspector also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sm@rtClient ships an update every 10 months, MaintMaster Inspector every 3 weeks. The most recent releases landed on October 1, 2026 and September 10, 2026 respectively.

Scorecard2 real differences Β· 6 level
Sm@rtClient versus MaintMaster Inspector: the parameters behind the verdict, then further details
ParameterSm@rtClientMaintMaster Inspector
PriceFreeFree
Positive reviews0.0% of reviewsβ€”
Update frequencyEvery 10 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPad β€” betteriPad
Requires iOS18.015.0 β€” better
Further details β€” not scored
Size57 MB36 MB
Age rating4+4+
DeveloperSiemens AGMaintMaster Systems AB

In-app purchases

None

Sm@rtClient

No in-app purchases

None

MaintMaster Inspector

No in-app purchases

Questions

Is Sm@rtClient free?
Sm@rtClient is free to download, with no in-app purchases.
Is MaintMaster Inspector free?
MaintMaster Inspector is free to download, with no in-app purchases.
Do Sm@rtClient or MaintMaster Inspector have ads?
Neither Sm@rtClient nor MaintMaster Inspector shows ads.
Which is updated more often, Sm@rtClient or MaintMaster Inspector?
Sm@rtClient ships an update every 10 months, and MaintMaster Inspector every 3 weeks. Most recently, Sm@rtClient was updated on October 1, 2026 and MaintMaster Inspector on September 10, 2026.

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