电工PLC题库 vs Electronics Tools & Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
电工PLC题库
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PLC练习题是技成培训网旗下主打题库工具,专为国内电气自动化行业人才量身打造,让您足不出户,轻松刷题练习! 以西门子PLC、三菱PLC编程应用为主,题库内容挑选自技成培训网线上课程内容搭配练习,主要针对学习西门子PLC编程入门、西门子S7-200 SMART PLC、西门子S7-200 PLC、西门子S7-300 PLC、三菱PLC编程应用入门、三菱FX系列综合应用等题库;助力于广大电气自动化从业者对PLC相关知识的学习与吸收。
Electronics Tools & Calculator
This app serves as a pocket-sized electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding both engineers and hobbyists in their design processes.
- Electronic component reference
- Electronic circuit reference
- Filter design calculators
- Inductor winding calculators
- Transformer winding calculators
- Resistor and capacitor calculations
- Ohm's law and power calculations
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Calculate, simulate, and understand electronic circuits with more than 60 calculators, interactive tools, and illustrated engineering references. Electronics Tools & Calculator is an all-in-one toolkit for students, engineers, technicians, makers, and electronics enthusiasts. Use it to study circuit theory, select components, check designs, or troubleshoot projects with practical calculators and clear circuit visuals. MORE THAN 60 ELECTRONICS CALCULATORS Solve problems across a wide range of topics: • Ohm’s law, voltage, current, resistance, and power • Series and parallel resistors and capacitors • Four-band, five-band, and SMD resistor codes • Voltage and current dividers • DC power and ripple voltage • RC, RL, LC, and RLC circuits • LED resistor and parallel LED calculations • Capacitor and inductor charging • Star-to-delta and delta-to-star conversions ACTIVE AND PASSIVE FILTER DESIGN Design and explore: • RC, RL, and LC filters • Butterworth and Chebyshev filters • Active and passive filters • Sallen-Key active filters • Band-pass and band-reject filters • Twin-T notch filters Selected advanced calculators include response graphs, helping you visualize how component values affect circuit behavior. AMPLIFIERS AND SEMICONDUCTORS Work with practical tools for: • 555 timer astable and monostable circuits • BJT analysis, biasing, Q-point, and switching • MOSFET switching • Inverting, non-inverting, and difference amplifiers • Class A, Class B, and Class AB amplifiers • Differential amplifiers and current mirrors • LM386 audio amplifier circuits POWER, RF, AND DESIGN TOOLS Explore calculations for: • Linear regulators and heat dissipation • Buck and boost converters • Rectifiers and Zener regulators • Clippers, clampers, and voltage multipliers • PCB trace width • Air-core and multilayer inductors • Transformers • Coaxial cables and waveguides • Antenna length and skin depth • dBm, watts, and decibel conversions • Servo and stepper motors DIGITAL ELECTRONICS Study essential digital circuits with clear diagrams and truth tables: • Logic gates • Flip-flops and counters • Multiplexers and demultiplexers • Encoders and decoders • Shift registers • Common digital integrated circuits INTERACTIVE CIRCUIT TOOLS Explore circuit behavior through interactive simulations and strong visual explanations. Adjust values, examine circuit configurations, and connect formulas with practical electronic designs. ILLUSTRATED ELECTRONICS REFERENCES Access more than 30 guides covering resistors, capacitors, inductors, transformers, diodes, BJTs, MOSFETs, IGBTs, UJTs, SCRs, DIACs, TRIACs, operational amplifiers, regulators, 555 timers, sensors, digital logic, Arduino boards, and ATmega microcontrollers. The guides combine explanations, equations, circuit diagrams, pinouts, truth tables, and practical notes to connect theory with real-world applications. DESIGNED FOR FASTER WORK • Search calculators by name • Save frequently used tools to Favorites • View response graphs in selected calculators • Export results from selected tools as PDF documents • Automatically switch between light and dark appearance • Use an interface designed for phones and larger screens • Choose from 15 supported languages • Access additional features through optional Pro tools Whether you are learning electronics, designing a filter, analyzing an amplifier, or checking values at the workbench, Electronics Tools & Calculator keeps useful tools and references close at hand. Important: This app is intended for education and design assistance. Always verify calculations, component ratings, circuit requirements, and safety considerations before building or operating electronic equipment.
Screenshots
Verdict
The clearest difference is ads: 电工PLC题库 at none against Electronics Tools & Calculator's shown. 电工PLC题库 also leads on iOS requirement (11.0 vs 15.0). Electronics Tools & Calculator's advantage is update cadence (every 6 weeks vs every 14 months). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
电工PLC题库 ships an update every 14 months, Electronics Tools & Calculator every 6 weeks. The most recent releases landed on September 12, 2026 and September 27, 2026 respectively.
| Parameter | 电工PLC题库 | Electronics Tools & Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (16 ratings) — better |
| Positive reviews | — | 16.7% of reviews |
| Number of ratings | — | 16 — better |
| Update frequency | Every 14 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 29 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | ShenZhen JiCheng Technology Co.,LTD. | Anas Abubakar |
In-app purchases
电工PLC题库
No in-app purchases
Electronics Tools & Calculator
No in-app purchases
Questions
Is 电工PLC题库 free?
Is Electronics Tools & Calculator free?
Do 电工PLC题库 or Electronics Tools & Calculator have ads?
Which is updated more often, 电工PLC题库 or Electronics Tools & Calculator?
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