I&C Tech Tools vs PLC Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
I&C Tech Tools
This app offers essential calculation tools for instrumentation and control technicians and engineers. It provides free access to basic tools, with advanced calculators available through a one-time in-app purchase or subscription.
- Basic instrumentation calculations
- Free access to selected tools
- Advanced calculators via in-app purchase
- Practical reference tools
- Ongoing improvements and updates
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Instrumentation and control calculation tools for technicians and engineers. Some tools require an in-app purchase. I&C Tech Tool provides practical instrumentation and control calculation tools designed for field technicians, engineers, and students You can use selected tools for free. Advanced calculators and professional tools are available with a one-time in-app purchase. Features include: • Basic instrumentation calculations • Free access to selected tools • Advanced calculators available with in-app purchase • Practical reference tools for field use • Ongoing improvements and updates Some features require an in-app purchase. Free tools are available to preview before purchasing full access. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/ictechtool/home
PLC Pro
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PLC Pro is the essential professional calculator designed specifically for instrumentation engineers, technicians, and control systems specialists. Streamline your fieldwork with precise tools for signal calibration, alarm configuration, and PLC/DCS integrations—all in one powerful, pocket-sized app. Key Features: • Multi-Signal Support – Effortlessly handle 4-20mA, 0-20mA, or 0-10V signals • 5-Point Signal Check – Generate instant calibration checkpoints at 0%, 25%, 50%, 75%, and 100% • Raw Count Conversion – Seamlessly convert between ADC/DAC counts and engineering units for any PLC or DCS system • Alarm Setpoint Calculator – Compute low/high pre-trip and trip values with deadband resets • Deviation Alarms – Apply deviation percentages and view values across all checkpoints • Square Root Extraction – Built-in calculations for flow transmitters • Save & Organize – Store unlimited calculations for fast field reference • Fault Detection Reference – Integrated NAMUR NE43 guidelines for reliable signal diagnostics Ideal For: Instrument technicians • Control systems engineers • PLC/DCS programmers • Process engineers • Maintenance professionals • Automation specialists Elevate your instrumentation workflow with PLC Pro—accuracy and efficiency at your fingertips.
Screenshots
Verdict
The clearest difference is price: I&C Tech Tools at Free against PLC Pro's $9.99. PLC Pro's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement 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
I&C Tech Tools is free to download; PLC Pro costs $9.99 up front. I&C Tech Tools sells 2 in-app purchases, starting at $4.99 per month. PLC Pro asks for nothing beyond the download.
I&C Tech Tools ships an update every 4 days, PLC Pro every 8 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | I&C Tech Tools | PLC Pro |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 43 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | LONNIE DALE RAWLS | James Johnson |
In-app purchases
I&C Tech Tools
- I&C Tech Tools - Monthly Access$4.991 Month
- I&C Tech Tools - Yearly$49.991 Year
PLC Pro
No in-app purchases








