The ultimate electronics toolkit for engineers, students & makers.
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Designed for iPhone — clean, fast and intuitive.






Features
Ohm's Law, voltage divider, RC/RL filters, op-amp, transformer, motor, LED, AWG wire gauge, battery life, dB — and many more.
Build circuits on a touch canvas with drag-and-drop components. Run instant DC analysis and visualize results in real time.
Point your camera at any 4, 5 or 6-band resistor and instantly decode its value. No manual lookup needed.
Turn any calculation into a clean PDF report and share it directly from your iPhone. Perfect for documentation and reports.
Offline tables for resistor codes, capacitor codes, AWG wire gauge, SI prefixes, E-series standard values, and more.
No internet connection required. No account. No ads. All features work completely offline, anywhere, anytime.
One-time purchase. No subscription, no recurring fees. Yours forever.
Support
Have a question or need help? Reach out anytime.