# Electro Sim — Circuit Simulator

> Real-time DC circuit simulator for learning and teaching electronics. (iPhone/iPad app by 剑龙 刘.)

- Source: https://appshunter.io/ios/app/electro-sim/id6758049588 (this page in markdown: same URL + `.md`)
- Developer: [剑龙 刘](https://appshunter.io/developer/562718731)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 3 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-01-29
- Data updated: 2026-08-20
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/electro-sim/id6758049588/reviews.md

## What is Electro Sim?

Electro Sim is an iOS app for learning and teaching basic electronics. With an intuitive canvas and component library, you can drag, wire, combine parts, and watch current flow in real time to make DC circuit concepts click.

Key Features
- Component library with search and categories
- Drag-and-drop canvas with rotation, multi-select, and wiring tools
- Build custom components to reuse your favorite circuit blocks
- Real-time DC simulation with current visualization
- Undo/redo (up to 50 steps)
- Save/load circuits (JSON) and export snapshots
- Supports basic DC components: resistors, switches, wires, LEDs/diodes

## Key features

- Intuitive drag-and-drop canvas
- Real-time DC simulation with current visualization
- Extensive component library with search
- Build and reuse custom components
- Save, load, and export circuits
- Undo/redo functionality

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Monthly | $0.99 | one-time |
| Yearly | $9.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/electro-sim/id6758049588/reviews.md

### 5/5 — 非常丝滑

*2026-04-08*

对我这个新手感觉还不错。不过没有电流动态。总体好的。希望后续更多功能

## Frequently asked questions about Electro Sim

### What is Electro Sim?

Electro Sim is an iOS application designed for learning and teaching fundamental electronics. It provides an interactive canvas where users can build and simulate DC circuits in real-time.

### What components are available in Electro Sim?

The app features a component library with basic DC components including resistors, switches, wires, LEDs, and diodes. Users can also create and save custom components for repeated use.

### How does Electro Sim help with learning?

It facilitates understanding of DC circuit concepts through a drag-and-drop interface and real-time current visualization. The ability to build, test, and modify circuits aids practical learning.

### Can I save my circuits in Electro Sim?

Yes, you can save and load your created circuits in JSON format. The app also allows you to export snapshots of your circuit designs.

### What devices does Electro Sim support?

Electro Sim is available for iPhone and iPad devices, making it accessible for a wide range of iOS users.

### What is the age rating for Electro Sim?

Electro Sim has an age rating of 4+, making it suitable for younger learners and educational purposes.

### Does Electro Sim have ads?

No, Electro Sim does not contain advertisements, providing an uninterrupted learning experience for users.

### How often is Electro Sim updated?

Electro Sim was last updated on January 29, 2026, with version 1.0. Future updates will likely focus on expanding features and component options.

## Version history (last 1 release)

### 1.0 — 2026-01-29

No release notes.

## Apps similar to Electro Sim

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ElectroSim: Circuit Simulator](https://appshunter.io/ios/app/electrosim-circuit-simulator/id6752586509) | 4.3 (50) | Free | Education |
| [CloudLabs Serie Circuit](https://appshunter.io/ios/app/cloudlabs-serie-circuit/id1636357455) | — | Free | Education |
| [AC Circuit Analyzer](https://appshunter.io/ios/app/ac-circuit-analyzer/id6446215739) | 5.0 (1) | Free | Education |
| [Circuit Simulator - VoltSim](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364) | 4.8 (71) | Free | Education |
| [Electronics docs & calcs](https://appshunter.io/ios/app/electronics-docs-and-calcs/id1581885136) | 4.0 (16) | Free | Education |
| [Circuit-Design](https://appshunter.io/ios/app/circuit-design/id1618728154) | 1.0 (2) | Free | Education |

## More apps by 剑龙 刘

- [小龙成语填空 - 成语接龙小游戏](https://appshunter.io/ios/app/id1447036288)
- [XL Random: Choice Helper](https://appshunter.io/ios/app/xl-random-choice-helper/id1447036517)
- [Coco Tule: Best Cutout Tool](https://appshunter.io/ios/app/coco-tule-best-cutout-tool/id1452586505)
- [快乐背背词: 记忆曲线科学背单词](https://appshunter.io/ios/app/id1544582453)
- [Accent Lane](https://appshunter.io/ios/app/accent-lane/id6480443984)
- [鲸记账 - 智能理财助手，轻松掌控每一笔](https://appshunter.io/ios/app/id6723883599)

All apps by 剑龙 刘: https://appshunter.io/developer/562718731

## Related topics

[digital circuit simulator lite](https://appshunter.io/ios/topics/digital-circuit-simulator-lite) · [circuit simulator electronic](https://appshunter.io/ios/topics/circuit-simulator-electronic) · [diode led circuit](https://appshunter.io/ios/topics/diode-led-circuit)

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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 2026-08-20.*