Electronics Tools & Calculator vs DB Component Decoder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
DB Component Decoder
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Lo strumento completo per studenti e appassionati di elettronica. Decoder componenti, progettazione alimentatori, database semiconduttori e quiz interattivi — tutto offline, tutto gratis, zero pubblicità. DECODER COMPONENTI Resistori: decodifica bande colore 3, 4, 5 e 6 bande. Inserisci i colori e ottieni il valore, oppure inserisci il valore e scopri i colori. Suggerimento serie E12, E24, E96. Condensatori: codici ceramici (104, 472…), tantalio ed elettrolitici. Tabella rapida dei codici più comuni. Induttori: bande colore e codici SMD (100, 4R7…). LED: calcola il resistore di caduta per qualsiasi LED. Supporta LED in serie e stringhe in parallelo, con preset per i colori più comuni. CALCOLO CIRCUITI Serie e parallelo per R, C e L, fino a 6 componenti. Costante di tempo RC e RL, frequenza di taglio, energia e potenza. Filtri RC, RL e RLC con diagramma di Bode interattivo. ALIMENTAZIONE Progettazione alimentatore AC/DC: scegli la topologia (mezza onda, ponte, presa centrale), calcola tensione DC, ripple e condensatore bulk. Verifica dropout del regolatore. Fusibili trasformatore: dimensionamento primario e secondario con margine per corrente di inrush. Scelta tra fusibile rapido, medio e lento. DATABASE SEMICONDUTTORI Decoder codici SMD per resistori, condensatori, transistor e diodi. Transistor: NPN, PNP, N-MOSFET, P-MOSFET, JFET, IGBT. Scheda completa con pinout, caratteristiche elettriche, equivalenti e sostituti. Diodi: signal, Schottky, rectifier, Zener, TVS e LED. Ogni componente con VF, VRRM, IF, package e note applicative. Regolatori: serie 78xx, 79xx, LM317, LM337 e equivalenti. Ponti raddrizzatori: database con modelli integrati e discreti. DIDATTICA Esercizi interattivi con punteggio e spiegazioni dettagliate. Cronologia degli ultimi 50 componenti analizzati. CARATTERISTICHE 100% offline — nessuna connessione richiesta. Dark mode automatica o manuale. Nessun tracciamento, nessuna pubblicità, nessun account. Progettata da un docente ITIS per studenti di Elettronica e Automazione.
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Verdict
The clearest difference is ads: DB Component Decoder at none against Electronics Tools & Calculator's shown. DB Component Decoder also leads on update cadence (every 3 days vs every 6 weeks). Electronics Tools & Calculator's advantage is device support (3 vs 1). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Electronics Tools & Calculator ships an update every 6 weeks, DB Component Decoder every 3 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.
| Parameter | Electronics Tools & Calculator | DB Component Decoder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (16 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 6 weeks | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 63 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Anas Abubakar | Davide Bertolino |
In-app purchases
Electronics Tools & Calculator
No in-app purchases
DB Component Decoder
No in-app purchases
Questions
Is Electronics Tools & Calculator free?
Is DB Component Decoder free?
Do Electronics Tools & Calculator or DB Component Decoder have ads?
Which is updated more often, Electronics Tools & Calculator or DB Component Decoder?
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