Comparison

PLC Signal Explorer vs PLC Tools Plus

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

Head to head
About

PLC Signal Explorer

Features
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PLC Signal Explorer is a powerful industrial utility designed for PLC engineers, automation specialists, and technicians who need a faster way to understand and trace PLC signals across projects. The app bridges the gap between PLC hardware tag tables and SCL software blocks by intelligently linking physical I/O addresses to their corresponding signals inside Function Blocks. This makes troubleshooting, diagnostics, and system understanding significantly easier and faster. With support for common industrial file formats, PLC Signal Explorer allows you to load tag tables and SCL blocks, then instantly search across addresses, tag names, signals, blocks, and comments. Smart matching highlights the most relevant signals, helping you quickly identify relationships that are often difficult to trace manually. Key Features: • Smart signal matching between PLC tags and SCL blocks • Instant search by address, tag name, signal, block, or keyword • Clear separation of INPUT, OUTPUT, INOUT, and STATIC signals • Support for CSV, XLSX, SCL, and XML file formats • Dark and Light mode with persistent user settings • Built-in SCL state machine parsing for deeper insight • Designed for offline use with no cloud dependency PLC Signal Explorer is built as a practical tool for real-world industrial environments, helping engineers save time, reduce errors, and gain better visibility into complex PLC logic.

About

PLC Tools Plus

Features
Read full description

PLC Tools Plus turns your phone or tablet into a portable EtherNet/IP diagnostic tool for compatible PLC controllers. Discover controllers on your local network, explore their full tag database, and watch live values update in real time - all without opening a laptop or launching programming software. Built for controls engineers, technicians, and integrators who need a fast way to check on a machine from the plant floor. KEY FEATURES - Controller Discovery: Scan your local network for EtherNet/IP controllers, or connect directly by IP address. Choose which network interface to scan from when your device has more than one. - Full Tag Browser: Explore a controller's complete tag database, including nested structures, arrays, and user-defined types (UDTs). Drill down into individual members to find exactly the tag you need. - Live Data Monitor: Add tags to a live monitoring view grouped by controller, watch values update in real time, and write new values to tags when you need to test or adjust a running process. - Ethernet/IP IO Scanner: Connect to any IO device that supports Ethernet/IP such field IO and VFDs - Ethernet/IP IO Device Simulator: Simulate IO devices and connect to it from a PLC. Simulate input data and read output data. - Demo PLC Mode: New to the app? Try a simulated "Demo PLC" controller loaded with sample tags, arrays, and UDTs - no real hardware required. - Built for the Field: A clean, mobile-first interface designed for quick checks on the plant floor, not a scaled-down desktop tool. REQUIREMENTS - Your device must be on the same local network as the target PLC(s). - Compatible with PLC controllers that support the EtherNet/IP (CIP) protocol using symbolic tag names. SUBSCRIPTION PLC Tools Plus includes a 14-day free trial. After the trial, full access requires a PLC Tools Plus Pro subscription at $4.99/month. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription anytime in your App Store account settings. Payment will be charged to your Apple ID account at confirmation of purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://serafintech.github.io/privacy/plc-tools-plus/

Screenshots

PLC Signal Explorer4 screens
PLC Tools Plus3 screens

Verdict

The call

The clearest difference is in-app purchases: PLC Signal Explorer at none against PLC Tools Plus's 1. On price, ads, device support and iOS requirement there is nothing between them.

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

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

Both are free to download. PLC Tools Plus sells 1 in-app purchase, starting at $4.99 per month. PLC Signal Explorer asks for nothing beyond the download.

Scorecard1 real difference Ā· 5 level
PLC Signal Explorer versus PLC Tools Plus: the parameters behind the verdict, then further details
ParameterPLC Signal ExplorerPLC Tools Plus
PriceFreeFree
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.4 — better
Further details — not scored
Size8 MB60 MB
Age rating4+4+
DeveloperYagoub DagririJASON THOMAS SERAFIN

In-app purchases

None

PLC Signal Explorer

No in-app purchases

1 purchases

PLC Tools Plus

Subscriptions1
  • PLC Tools Plus Pro14 Days trial$4.991 Month

Questions

Is PLC Signal Explorer free?
PLC Signal Explorer is free to download, with no in-app purchases.
Is PLC Tools Plus free?
PLC Tools Plus is free to download, with in-app purchases available.
Do PLC Signal Explorer or PLC Tools Plus have ads?
Neither PLC Signal Explorer nor PLC Tools Plus shows ads.

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