Comparison

EngineerCalc vs PLC Assistance

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

Head to head
About

EngineerCalc

Features
Read full description

EngineerCalc is an app for electrical engineers and hobbyists. At the moment, it includes 4 calculators: • CapacitorCalc - Calculate the ripple voltage refusing capacitor capacitance and min. voltage for your AC-DC circuit • InductorCalc - Calculate the inductance, needed wire-length (and resistance of the wire) and Q-value for your diy coil/inductor • LC-TankCircuit - Calculate the 3rd value of your tank-circuit (capacitance, inductance or frequency) • Ohm'sLawCalc - Calculate the 3rd and/or 4th value of an Ohm's law circuit (voltage, current, resistance or power ) The app supports multiple units which you can change by tapping the unit-label: For CapacitorCalc: • Voltage (Volt) - V • Current (Amper) - A • Frequency (Herz) - Hz For InductorCalc: • Distance (Meter) - µm, mm, cm, m, Km • Resistance (Ohm) - pΩ, nΩ, µΩ, mΩ, Ω, KΩ, MΩ, GΩ • Frequency (Herz) - Hz, KHz, MHz, GHz • Inductance (Henry) - pH, nH, µH, mH, H, KH, MH, GH For LC-TankCircuit: • Capacitance (Farad) - pF, nF, µF, mF, F, KF, MF, GF • Inductance (Henry) - pH, nH, µH, mH, H, KH, MH, GH • Frequency (Herz) - Hz, KHz, MHz, GHz For Ohm'sLawCalc: • Voltage unit (Volt) - pV, nV, µV, mV, V, KV, MV, GV • Current unit (Amper) - pA, nA, µA, mA, A, KA, MA, GA • Resistance unit (Ohm) - pΩ, nΩ, µΩ, mΩ, Ω, KΩ, MΩ, GΩ • Power unit (Watt) - pW, nW, µW, mW, W, KW, MW, GW If you have an development suggestion, want to request an unit support or want to report a bug, you can get in touch with me trough my website https://ssl-saario.xyz/AppFiles/html/eCalcHelp.html

About

PLC Assistance

This AI-powered tool assists electrical and automation engineers in understanding PLC logic, troubleshooting issues, and enhancing their workflow. It provides instant answers and programming support for various industrial automation systems, helping users save time and improve efficiency.

Highlights
  • PLC programming support (ladder logic, structured text)
  • Troubleshooting and debugging guidance
  • Instant answers for industrial automation problems
  • AI assistant tailored for engineers
  • Support for Siemens, Allen-Bradley, and other PLC systems
Features
Read full description

PLC AI Assistant is designed for electrical and automation engineers. It helps you quickly understand PLC logic, troubleshoot issues, and improve your workflow with AI-powered assistance. Key Features: - PLC programming support (ladder logic, structured text) - Troubleshooting and debugging guidance - Instant answers for industrial automation problems - AI assistant tailored for engineers Whether you're working with Siemens, Allen-Bradley, or other PLC systems, PLC AI Assistant helps you save time and work more efficiently.

Screenshots

EngineerCalc4 screens
PLC Assistance4 screens

Verdict

The call

The clearest difference is price: PLC Assistance at Free against EngineerCalc's $1.99. PLC Assistance also leads on update cadence (weekly vs every 60 months). EngineerCalc's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On ads and in-app purchases 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

PLC Assistance is free to download; EngineerCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EngineerCalc ships an update every 60 months, PLC Assistance weekly. The most recent releases landed on September 15, 2026 and August 9, 2026 respectively.

Scorecard4 real differences · 6 level
EngineerCalc versus PLC Assistance: the parameters behind the verdict, then further details
ParameterEngineerCalcPLC Assistance
Price$1.99Free — better
Rating—5.0 (45 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—45 — better
Update frequencyEvery 60 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.6
Further details — not scored
Size10 MB10 MB
Age rating4+4+
Developeroskari saarinenZhihao Wang

In-app purchases

None

EngineerCalc

No in-app purchases

None

PLC Assistance

No in-app purchases

Questions

Is EngineerCalc free?
EngineerCalc costs $1.99, with no in-app purchases.
Is PLC Assistance free?
PLC Assistance is free to download, with no in-app purchases.
Do EngineerCalc or PLC Assistance have ads?
Neither EngineerCalc nor PLC Assistance shows ads.
Which is updated more often, EngineerCalc or PLC Assistance?
EngineerCalc ships an update every 60 months, and PLC Assistance weekly. Most recently, EngineerCalc was updated on September 15, 2026 and PLC Assistance on August 9, 2026.

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