# Circuit Calculator — Build & Solve AC/DC Circuits > Build, simulate, and solve AC/DC electrical circuits with component analysis. (iPhone/iPad app by Neil Woodcock.) - Source: https://appshunter.io/ios/app/circuit-calculator/id836792864 (this page in markdown: same URL + `.md`) - Developer: [Neil Woodcock](https://appshunter.io/developer/836792867) - Category: Education, Utilities - Price: Free (on sale, was $0.99) - Age rating: 4+ - Requires: iOS 18.0 · 2 MB - Languages: American English - Released: 2014-03-25 - Data updated: 2026-06-08 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/circuit-calculator/id836792864/reviews.md ## What is Circuit Calculator? Circuit Calculator - The Essential Tool for Circuit Solutions: Solve circuit problems effortlessly! Circuit Calculator is the go-to app for students, engineers, and electronics enthusiasts. Quickly build, simulate, and solve linear AC and DC circuits - ideal for study, verification, or practical use. Build, Solve & Review Results: • Create schematics by dragging, rotating, and snapping components • Tap solve to compute steady-state voltages and currents • Follow DC current flow with real-time animations • Zoom and pan around to review results directly on the schematic • Tap detailed analysis to also compute power values Perfect for Learning & Quick Verification: Whether you're checking your homework or confirming a design, Circuit Calculator supports both rectangular and polar notation - just like textbook problems. It focuses on steady-state behaviour in linear circuits, making it ideal for academic and professional use. Other Key Features: • Interactive user guide • Pre-built example circuits • Supports DC and sinusoidal AC circuits • Computes Thévenin and Norton equivalents • Save to iCloud for access across devices • Export/share circuits or PDF snapshots • Import circuits from others • Undo/redo and copy/paste support Available Components: • Independent Ideal Current Sources • Independent Ideal Voltage Sources • Current-Controlled Current Sources • Current-Controlled Voltage Sources • Voltage-Controlled Current Sources • Voltage-Controlled Voltage Sources • Resistors, Capacitors & Inductors • Mutually Coupled Inductors (AC only) • Impedances (AC only) • Diodes (DC only) Learn More & See It in Action! Want to see Circuit Calculator in action? Visit our website or check out our YouTube channel for tutorials! ## Key features - Build schematics with drag-and-drop components - Solve for steady-state voltages and currents - Real-time DC current flow animation - Compute power values and Thévenin/Norton equivalents - Supports rectangular and polar notation - Save, export, and import circuits - Interactive user guide and example circuits ## Recent user reviews (10 of 36) All indexed reviews: https://appshunter.io/ios/app/circuit-calculator/id836792864/reviews.md ### 5/5 — At last!!!! *2025-06-25, version 3.01* I have been looking for a program to check my calculations easily and I have finally found one that does exactly what I want. There are lots of others on the market but you won't be disappointed with this as it's not overly complicated (if U don't want it to be) and does exactly what it says on the tin!! ### 5/5 — Great update *2025-06-22, version 3.01* New user interface look great. ### 1/5 — Doesn’t seem to work? *2025-02-11, version 2.92* I don’t know what I’m doing wrong but it seems the components won’t rotate… I can’t use it. Seems it could be a bit more intuitive. ### 5/5 — Essential for EE students *2024-11-26, version 2.92* This app is a flippin lifesaver-almost feels like cheating to use it! It’s been a really great tool for doublechecking my circuit analysis calculations for class assignments ### 4/5 — Add element boxes? *2024-10-22, version 2.92* Can you also add the possibility for resistors to be read in voltage and ability to converting to resistance? Add batteries? Some circuits the resistors have voltages read as them we must find Vfb in the circuit aka high and low sides. Also I get it’s a calculator but I just built a circuit and didn’t get any option for calculation. ### 4/5 — Add diodes? *2024-10-02, version 2.92* Wonderful app, taking electronic circuits right now, but I noticed there are no diodes for this app. Wondering if it would be possible to add them in an update? ### 1/5 — Scan app *2024-09-28, version 2.92* Do not buy it it’s a scam ### 5/5 — Excellent Electronics App *2024-01-16, version 2.92* I really appreciate this excellent app you created I've just started using it for my Facebook page. I post daily circuit problems for fans of electronics theory design to practice. I hope you continue to support & develop it. Thanks. ### 5/5 — Great app *2022-09-05, version 2.92* This app is everything I need to help with my circuit analysis. Easy to use ### 2/5 — No diodes in ac mode *2021-11-17, version 2.92* Thought it could help me better understand bridge rectifiers, but there are no diodes in AC mode. Disappointing. ## Frequently asked questions about Circuit Calculator ### What does Circuit Calculator do? Circuit Calculator is a mobile application designed to help users build, simulate, and solve linear AC and DC electrical circuits. It allows for the creation of schematics, computation of steady-state voltages and currents, and analysis of component values. It's suitable for educational purposes, design verification, and practical electronics work. ### What are the key features of Circuit Calculator? Key features include the ability to build schematics by dragging and snapping components, solving for voltages and currents, real-time DC current flow animation, and detailed analysis including power values. It also supports Thévenin and Norton equivalents, rectangular and polar notation, and offers features like saving, exporting, and importing circuits. ### Is Circuit Calculator free to use? Yes, based on the provided information, Circuit Calculator is available for free. There are no mentions of in-app purchases or subscription models, indicating it is a free application. ### What types of circuits can I build and solve? The app supports building and solving linear AC and DC circuits. This includes components like resistors, capacitors, inductors, various types of independent and dependent sources, and impedances for AC circuits. It focuses on steady-state behavior for both DC and sinusoidal AC circuits. ### Who is the target audience for this app? This application is intended for students learning about electrical circuits, engineers who need a tool for quick verification or design analysis, and electronics enthusiasts. Its features cater to both academic study and practical application of circuit theory. ## Version history (last 5 releases) ### 3.01 — 2025-06-15 Improved bold accessibility font support for customer alerts and improved high resolution zooming. ### 3.0 — 2025-06-06 • Complete user interface overhaul for a faster, smoother experience • Add connectors instantly with a two-finger tap • Export and share your saved circuits with ease • Learn faster with new interactive tutorials • Explore pre-built example circuits to get started quickly • Navigate effortlessly using the new zoom slider ### 2.92 — 2021-10-02 Minor compatibility updates for iOS 15 ### 2.91 — 2021-02-21 Fix for unclear display if device running in dark mode. ### 2.90 — 2020-11-11 Minor improvements. ## Apps similar to Circuit Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [SPARKvue](https://appshunter.io/ios/app/sparkvue/id361907181) | 1.9 (610) | Free | Education | | [Career Fair Plus](https://appshunter.io/ios/app/career-fair-plus/id1119153393) | — | Free | Education | | [Sololearn: Learn to Code](https://appshunter.io/ios/app/sololearn-learn-to-code/id1210079064) | 4.9 (23,099) | Free | Education | | [Solvo: AI Homework Helper](https://appshunter.io/ios/app/solvo-ai-homework-helper/id6447069698) | 4.6 (5,384) | Free | Education | | [Taculator 84 Graphing Calc](https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367) | 4.5 (7,509) | Free | Education | | [Mimo: Learn Coding/Programming](https://appshunter.io/ios/app/mimo-learn-codingprogramming/id1133960732) | 4.9 (107,982) | Free | Education | ## More apps by Neil Woodcock - [Complex Number Cruncher](https://appshunter.io/ios/app/complex-number-cruncher/id1046399105) All apps by Neil Woodcock: https://appshunter.io/developer/836792867 ## Related topics [circuit calculator](https://appshunter.io/ios/topics/circuit-calculator) --- *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 2026-06-08.*