# Electronics Tools - ElectroLab — Circuit Calculator & Pinouts

> Circuit Calculator & Pinouts (iPhone/iPad app by Denis Kovalov.)

- Source: https://appshunter.io/ios/app/electronics-tools-electrolab/id6830176549 (this page in markdown: same URL + `.md`)
- Developer: [Denis Kovalov](https://appshunter.io/developer/1835735362)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 45 MB
- Languages: American English
- Released: 2026-11-10
- Data updated: 2026-11-13

## What is Electronics Tools?

ElectroLab is an all-in-one offline electronics toolkit for hardware engineers, students, Arduino & ESP32 makers, and hobbyists. Whether you are decoding an SMD resistor on the bench, calculating a PCB trace width, or checking a connector pinout in the field, ElectroLab gives you accurate answers without an internet connection.

30 INTERACTIVE ELECTRONICS CALCULATORS
Solve circuit equations instantly with built-in formulas, SI unit prefixes, and standard E-series matching:

• Component Decoders:
- Resistor Color Code (4, 5 & 6 bands)
- Lookup Resistor Color by Value (E6–E192 series)
- SMD Resistor Code Decoder (3-digit, 4-digit & EIA-96)
- Inductor Color Code (4 & 5 bands)

• Fundamental & Passive Circuits:
- Ohm's Law (Voltage, Current, Resistance, Power)
- Voltage Divider (Unloaded & loaded circuits)
- Resistor Ratio Finder (E12, E24, E48, E96 pairs)
- Resistors & Capacitors in Series / Parallel
- Capacitor Charge & RC Time Constant
- Reactance & LC Resonance Frequency
- Passive RC, RL & LC Low-Pass / High-Pass Filters
- Y-Δ (Star-Delta) Network Transformation
- DC, Single-Phase & Three-Phase AC Power

• Active Circuits & Semiconductors:
- LED Series Resistor Calculator (Single, Series, Parallel)
- Operational Amplifier (Inverting, Non-Inverting, Differential, Summing, Buffer)
- Adjustable Voltage Regulator (LM317, LM338, LM350 & custom)
- NE555 Timer (Astable oscillator & Monostable pulse)
- Zener Diode Shunt Regulator

• Thermal, PCB & Hardware Design:
- PCB Trace Width Calculator (IPC-2221 internal & external layers)
- Power Dissipation & Heatsink Thermal Resistance
- Wire Voltage Drop & Power Loss
- Battery Life & Duty Cycle Runtime Estimator
- Air-Core Inductor Coil Design

• Signals, Sensors & Converters:
- RTD Temperature Sensor (PT100 / PT1000 IEC 60751)
- Analog-to-Digital Converter (ADC LSB, code & SNR)
- Decibel Converter (dB, dBm, dBW, dBV, dBu)
- RMS, Peak & Peak-to-Peak Waveform Converter
- Frequency, Period & Wavelength Converter
- Linear Range & 4–20 mA Span Converter

OFFLINE PINOUT LIBRARY
Visual connector diagrams and contact assignments:
• USB & Data: USB-A/Mini/Micro/3.x/Type-C, Ethernet RJ45 & PoE, RS-232 Serial, Parallel, FireWire, Lightning, SD/MicroSD, SIM, GPIB, Fiber & 25-Pair color codes.
• Boards & Debug: Arduino (Uno, Nano, Mega, Due & more), Raspberry Pi GPIO, BeagleBone, JTAG, LCD & Thermocouples.
• Audio, Video & PC: HDMI, DisplayPort, VGA, DVI, SCART, RCA, Audio Jack (TS/TRS/TRRS), XLR/DMX, DIN, MIDI, ATX 24-pin, SATA/PCIe, OBD-II, Car Audio ISO & Trailer wiring.

25 ENGINEERING REFERENCE TABLES
• Wires & Power: AWG & SWG gauges, Ampacity, Material Resistivity, USB Power Delivery (up to 240W), IEC 60320, DIN 47100.
• Components & Standards: Capacitor codes, SMD packages (0402–1206), E-series tables, 18650/AA & Coin (CR2032) cells, Auto fuses, Schematic symbols, Logic gates, ASCII, SI units, dBm & RF charts, Switch layouts.

FREE VS. ELECTROLAB PRO
20 essential calculators, core pinouts (including USB-C & Arduino Uno), and essential reference tables are free. Upgrade to ElectroLab Pro (Annual subscription or one-time Lifetime purchase) to unlock all 30 calculators, the full pinout library, and all 25 reference tables—100% offline.

SUBSCRIPTION & TERMS INFORMATION
• Payment is charged to your Apple ID account at confirmation of purchase.
• Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period.
• Manage or cancel subscriptions anytime in your App Store Account Settings.
• Lifetime Pro is a one-time purchase and does not auto-renew.

Terms of Use (EULA): https://quit-tracker-ios.web.app/terms.html
Privacy Policy: https://quit-tracker-ios.web.app/privacy.html
Support: dekovalov@gmail.com

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| ElectroLab Pro Annual | $2.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ElectroLab Pro Lifetime | $6.99 | one-time |


## Is Electronics Tools safe?

Not enough ratings yet to assess Electronics Tools.

## Is Electronics Tools legit?

Electronics Tools - ElectroLab appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Electronics Tools is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2.0 — 2026-11-12

Added multi-language support across calculators, pinouts, and reference tables, plus general improvements.

### 1.1.1 — 2026-11-12

Improved visual assets and updated diagrams for a clearer and more intuitive experience.

### 1.0 — 2026-11-10

No release notes.

## More apps by Denis Kovalov

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All apps by Denis Kovalov: https://appshunter.io/developer/1835735362

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-13.*