Comparison

Ohmie vs SCADA & PLC Academy

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

Head to head
About

Ohmie

Learn electronics through engaging, game-like lessons and interactive circuit simulations. Master concepts from basic circuits to embedded systems and robotics with bite-sized daily practice. Progress is tracked on your device with no ads or accounts required.

Highlights
  • Live circuit simulations
  • Build schematics with real components
  • Interactive problem-solving lessons
  • Covers circuits, op-amps, embedded systems, and robotics
  • Gamified learning with XP and streaks
  • Progress saved locally, no account needed
  • Ad-free and tracking-free experience
Features
Read full description

Pass circuits. 3 minutes a day. Ohmie teaches electronics the way you'd learn a language: short, game-like lessons you actually solve, not paragraphs you skim. Lessons are read aloud, so your eyes stay on the circuit. REAL PRACTICE • Live circuit sims: stack battery cells, dim an LED, watch current respond to resistance • Build schematics by dragging real components into place • Decode resistor color bands, spot the broken circuit, order the steps • Miss a question? It comes back in Practice until it sticks. That's the method, not a penalty. LEARN THE FULL PATH • Electronics: charge, current, voltage, Ohm's law, series and parallel, capacitors, power, analog, then transistors, logic gates and an 8-bit computer you can run, pause and step through • Embedded systems: GPIO, timers, PWM, ADC, interrupts, serial protocols, build a device • Robotics: sensors, motors, PID control, build a line-following racer • PCB design: schematics, layout, routing, production • Programming: Python, and C++ for Arduino EXPLORE OHMIE WORLD Walk into Copper Town, take on the trainers in the forest, wire the town's circuit on a breadboard, and face other learners in the Arena. MOMENTUM THAT FORGIVES XP, streaks, daily quests, 30 badges to earn, skins to unlock, leaderboards, and a mascot named Ohmie who reacts to every answer and is on your side. Streaks are forgiving. Life happens. Stuck? Ask Ohmie and get a hint in plain words. No ads. Learn in English, Spanish or German. Sign in to keep your progress across devices. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ohmie.io/privacy

About

SCADA & PLC Academy

Features
Read full description

SCADA & PLC Academy is a professional-grade training suite for industrial automation engineers, technicians, and engineering students. Three complete learning modules — each packed with curriculum, illustrated references, interactive labs, and real-world projects. MODULE 1 - PLC PROGRAMMING Master programmable logic controllers from fundamentals through advanced applications. - 6-module curriculum covering IEC 61131-3 languages: Ladder Logic, Structured Text, Function Block, and Sequential Function Chart - Interactive Ladder Logic Simulator — write and test rungs directly on device - 19 illustrated reference diagrams covering hardware architecture, scan cycle, I/O wiring, and programming examples - Hands-on projects with step-by-step guidance - Study guide and quick reference for exam prep MODULE 2 - SCADA DESIGN STUDIO Learn to design, simulate, and secure modern SCADA systems. - Comprehensive curriculum: SCADA architecture, HMI design, PID control, communications protocols, cybersecurity, and project documentation - 44 illustrated reference diagrams covering Purdue model, ISA-101 HMI standards, OPC-UA, Modbus, EtherNet/IP, and more - Interactive simulation lab with SCADA network scenarios - Assessment module with timed exam sessions - Full project lifecycle from FDS through FAT/SAT documentation MODULE 3 - SCADA ENGINEERING WORKFLOW Follow a real 17-phase SCADA engineering project from concept to commissioning. - Complete engineering workflow for two facility types: 650 MW Combined Cycle Gas Turbine and Cascade Falls Hydroelectric - 51 authentic engineering drawings: architecture diagrams, OT network topologies, loop diagrams, cause and effect matrices, firewall rule matrices, and more - I/O Tag Database builder and Alarm Matrix builder - Deliverables tracker across all 17 project phases - Engineering drawing gallery with full-screen zoom WHO IT'S FOR - Automation and controls engineers building or refreshing their skills - Instrumentation and electrical technicians pursuing advancement - Engineering students preparing for industry roles - Professionals studying for ISA, NICET, or similar certifications FLEXIBLE PURCHASING Purchase only the modules you need, or unlock all three with the Complete Bundle at a significant discount. All content is available offline once downloaded. SCADA & PLC Academy - built by engineers, for engineers.

Screenshots

Ohmie4 screens
SCADA & PLC Academy4 screens

Verdict

The call

The clearest difference is ads: SCADA & PLC Academy at none against Ohmie's shown. SCADA & PLC Academy also leads on iOS requirement (17.0 vs 26.2). Ohmie's advantage is chart position (#121 vs unranked). On price, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ohmie sells 4 in-app purchases, starting at $7.99 per month and SCADA & PLC Academy sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Scorecard3 real differences · 8 level
Ohmie versus SCADA & PLC Academy: the parameters behind the verdict, then further details
ParameterOhmieSCADA & PLC Academy
PriceFreeFree
Rating4.5 (247 ratings) — better—
Positive reviews56.0% of reviews—
Number of ratings247 — better—
Update frequencyEvery 3 days—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemium—
Best chart rank#121 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.217.0 — better
Further details — not scored
Size731 MB172 MB
Age rating4+4+
DeveloperOHMIE LLCYuhsiu Lai

In-app purchases

4 purchases

Ohmie

Subscriptions4
  • Ohmie Pro$7.991 Month
  • Ohmie Pro Yearly Saver$19.991 Year
  • Ohmie Pro7 Days trial$29.991 Year
Show 1 more
  • Ohmie Pro Annual3 Days trial$29.991 Year
4 purchases

SCADA & PLC Academy

One-time4
  • PLC Programming Module$4.99
  • SCADA Design Module$4.99
  • SCADA Workflow Module$4.99
Show 1 more
  • Complete Bundle$9.99

Questions

Is Ohmie free?
Ohmie is free to download, with in-app purchases available.
Is SCADA & PLC Academy free?
SCADA & PLC Academy is free to download, with in-app purchases available.
Do Ohmie or SCADA & PLC Academy have ads?
Ohmie shows ads; SCADA & PLC Academy does not.

Other comparisons