# DC Circuit Builder > Free DC circuit simulator for designing, building, and testing electrical circuits. (iPhone/iPad app by Nerd Island Studios, LLC.) - Source: https://appshunter.io/ios/app/dc-circuit-builder/id863128050 (this page in markdown: same URL + `.md`) - Developer: [Nerd Island Studios, LLC](https://appshunter.io/developer/546699733) - Category: Education - Price: Free - Rating: 2.60/5 from 26 App Store ratings · 18 written reviews indexed - Age rating: 4+ - Requires: iOS 5.1.1 · 6 MB - Languages: American English - Released: 2014-05-03 - Data updated: 2026-06-08 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/dc-circuit-builder/id863128050/reviews.md ## What is DC Circuit Builder? Design, build, and test circuits on your iPhone or iPad for free! "So that's how parallel circuits work!" - Physics student From Nerd Island Studios, LLC the creators of the top-rated "Step2Step Physics - Mechanics" for the iPad, comes an easy-to-use DC circuit builder: • Build and test series, parallel, and compound circuits • Visible charges flow through the circuit components • Voltmeters and ammeters behave like the real thing • Voltages are shown right on the circuit nodes • Bulbs glow brighter according to the amount of power they are dissipating Tested by high school teachers and students, DC Circuit Builder meets the need for a simple classroom tool to show students the basics of current and voltage, as well as the proper use of voltmeters and ammeters. www.nerdislandstudios.com ## Key features - Design series, parallel, and compound circuits - Visualize charge flow - Realistic voltmeters and ammeters - Voltage displayed on circuit nodes - Bulb brightness indicates power dissipation ## Recent user reviews (10 of 18) All indexed reviews: https://appshunter.io/ios/app/dc-circuit-builder/id863128050/reviews.md ### 1/5 — Highly inaccurate *2016-12-12, version 1.1* Current involves electrons moving from the negative terminal of the source to the positive terminal due to the potential difference of energy. Protons don't move you dumb idiots. Cannot believe that you guys missed the most fundamental concept of electricity. Even 14 year olds would know that this is highly inaccurate. Please fix this immediately. ### 5/5 — Nice! *2016-11-14, version 1.1* I think this app is very useful to learn how electricity works, cause I'm just learning, anyway thanks a lot! ### 1/5 — Bad *2016-08-30, version 1.1* Bad ### 5/5 — Amazing *2016-05-23, version 1.1* Very helpful! Thanks!! ### 4/5 — Cool app! *2016-03-02, version 1.1* Fun little app but would be great to see some more components added and perhaps a slightly bigger platform for building circuits! Still good fun! ### 1/5 — Wiring *2016-02-18, version 1.1* This app is so helpful. I used it to wire my human torture chamber in my basement and it was so easy. Would recommend to my colleagues and coworkers. ### 2/5 — Decent app *2016-02-12, version 1.1* It's a decent app but lags and could use more features... #GoVikes! ### 5/5 — Good job *2015-10-08, version 1.1* Good job ..its perfect app ### 5/5 — Trash *2015-06-04, version 1.1* Nearly can call itself a circuit builder but its sooo limited! ### 1/5 — Not a great app *2015-05-12, version 1.1* Very glitchy. I would not recommend because the ammeter gives random readings sometimes. Again, very glitchy. Not a good app. ## Frequently asked questions about DC Circuit Builder ### What types of circuits can I build with DC Circuit Builder? DC Circuit Builder allows you to design and test series, parallel, and compound circuits. You can build various configurations to understand how different circuit layouts affect electrical flow and component behavior. ### How does DC Circuit Builder simulate real-world components? The app features voltmeters and ammeters that behave like their real-world counterparts. Voltages are displayed directly on circuit nodes, and the brightness of bulbs accurately reflects the amount of power they are dissipating. ### Is DC Circuit Builder suitable for classroom use? Yes, DC Circuit Builder has been tested by high school teachers and students and is designed as a simple classroom tool. It effectively demonstrates the basics of current and voltage, along with the proper use of measurement instruments. ### What devices is DC Circuit Builder compatible with? DC Circuit Builder is available for iPhone and iPad devices. It is designed to run on these iOS platforms, offering a convenient way to learn about circuits on the go. ### How often is DC Circuit Builder updated? The latest version of DC Circuit Builder is 1.1, which was released on May 3, 2014. As of its last update, the app has not received recent updates, suggesting it may be a stable, finalized product. ### What is the user sentiment for DC Circuit Builder? DC Circuit Builder has an average rating of 2.6 stars from 26 ratings. This indicates a mixed reception from users, with some finding it useful and others potentially encountering issues or limitations. ### Does DC Circuit Builder have ads? No, DC Circuit Builder is ad-free. You can use the application to design and test circuits without any interruptions from advertisements. ### What is the age rating for DC Circuit Builder? DC Circuit Builder has an age rating of 4+. This means it is considered appropriate for users aged 4 and older, making it suitable for a wide range of students. ## Version history (last 1 release) ### 1.1 — 2014-05-03 No release notes. ## Apps similar to DC Circuit Builder | App | Rating | Price | Category | | --- | --- | --- | --- | | [Galton Board App](https://appshunter.io/ios/app/galton-board-app/id6446604966) | 5.0 (114) | Free | Education | | [Ods Research & Action](https://appshunter.io/ios/app/ods-research-and-action/id1503077678) | — | Free | Education | | [Electrical Symbols Quiz](https://appshunter.io/ios/app/electrical-symbols-quiz/id6468240005) | 3.8 (18) | Free | Education | | [Opamp tools](https://appshunter.io/ios/app/opamp-tools/id1616271826) | — | Free | Education | | [Splashtop Classroom](https://appshunter.io/ios/app/splashtop-classroom/id793621885) | 3.9 (14) | Free | Education | | [Matrix Calculator Plus](https://appshunter.io/ios/app/matrix-calculator-plus/id505415883) | 4.5 (4) | Free | Education | ## Related topics [studio 14 circuit training](https://appshunter.io/ios/topics/studio-14-circuit-training) · [electronic circuit design quiz](https://appshunter.io/ios/topics/electronic-circuit-design-quiz) --- *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.*