Electronics Reference
John Kennedy Reference iPhoneiPadiPod touch
Electronics Reference is a free Reference app for iPhone and iPad by John Kennedy. Rated 5.0/5 from 1 ratings. Requires iOS 18.6. Updated August 25, 2026.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 19 MB
- Age 4+
- Updated
- Aug 25
- 2026 · v1.2
Screenshots
About Electronics Reference
Electronics Component Reference is a beautifully crafted reference app for anyone who works with electronic components - from hobbyists building their first circuit to engineers at the bench. WHAT'S INSIDE • Resistors - Interactive color band calculator with common values and a visual guide to reading 4, 5, and 6-band resistors. • Capacitors - Decode ceramic capacitor markings, explore types, and look up values instantly. • Semiconductors - Reference cards for popular transistors and diodes, with a guide to PN junctions, BJTs, MOSFETs, and more. • Integrated Circuits - Browse a library of common ICs and the complete 74-series logic family, with pinouts and a family comparison guide (HC, LS, AC, LVC). • Microcontrollers - Specs and details for popular chips across ARM, AVR, and Xtensa architectures. • Boards - Pinout diagrams and GPIO references for Raspberry Pi 5 & 4, Pico, Arduino Uno & Nano, and ESP32. • Identify - Point your camera at a component and use OCR to identify ICs, capacitors, and microcontrollers from their markings. • Learn - Interactive common circuits, so you can always have the correct component values. Information on chip families, capacitor types and more., No ads, no account required, no internet needed.
What’s new
Version 1.2 · Updated August 25, 2026
• IC search now recognizes real markings such as 74HC00 , SN74LS04 , MC74HC00 , and package suffixes. • Identification results now open the relevant IC, MCU, logic, or capacitor reference. • OCR now respects image orientation and displays recognition failures instead of silently reporting no text. • Detected capacitor values show equivalent pF, nF, µF, and common markings. • Capacitor destinations avoid showing a misleading empty table when the conversion itself is the answer. • The home animation becomes static for Reduce Motion and while the app is inactive.
App privacy
The developer, John Kennedy, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Electronics Reference
Looking for apps like Electronics Reference? Here are 6 similar apps on the App Store. The highest rated is Digital Electronics Guide (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Electronics Reference | 5.0 / 5 (1 rating) | Free | August 25, 2026 | |
| Learn About Electronics | 3.5 / 5 (2) | Free | Jan 12, 2026 | Compare |
| Visual Periodic Table Chemie | 4.5 / 5 (2) | Free | Nov 1, 2026 | Compare |
| Digital Electronics Guide | 5.0 / 5 (2) | Free | Aug 11, 2026 | Compare |
| BlueGrays - Arduino Projects | 4.2 / 5 (14) | Free | Oct 31, 2026 | Compare |
| Electronics Tools & Calculator | 4.0 / 5 (16) | Free | Sep 14, 2026 | Compare |
| Arduino Programming Tutorial | 3.0 / 5 (1) | Free | Aug 10, 2026 | Compare |