# Cirquanta: Circuit Simulator — Logic Gates & Digital Design

> Logic Gates & Digital Design (iPhone/iPad app by Mewey.)

- Source: https://appshunter.io/ios/app/cirquanta-circuit-simulator/id6790359913 (this page in markdown: same URL + `.md`)
- Developer: [Mewey](https://appshunter.io/developer/530958597)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 10 MB
- Languages: American English
- Released: 2026-07-22
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/cirquanta-circuit-simulator/id6790359913/reviews.md

## What is Cirquanta?

Make digital logic visible.

Cirquanta is a native circuit simulator for iPhone and iPad. Build clear schematics, connect components directly on the canvas, and watch every logical signal react in real time. Whether you are learning Boolean logic, teaching digital electronics, or sketching a design before HDL or firmware, Cirquanta gives you a focused workspace that works offline.

DESIGN ON THE CANVAS
• Choose and place 60+ components from an organized library
• Move, wire, rotate, duplicate, and configure elements with undo and redo
• Select several parts at once, then move or duplicate the whole sub-circuit — wiring included
• Organize larger designs with buses, zones, sticky notes, zoom, full screen, and curved or right-angle wires

SIMULATE IN REAL TIME
• Toggle switches and inputs directly on your circuit
• Run, pause, advance step by step, or reset the simulation
• Follow color-coded signals with deterministic four-state logic: 0, 1, unknown X, and high-impedance Z

LEARN WITH CHALLENGES
• Work through a 30-level campaign, from a single wire to a state machine
• Follow a clear objective, with optional hints and step-by-step guidance
• Earn up to three stars per challenge, graded on correctness and efficiency
• Play the first six challenges free; unlock the whole campaign with Pro

GO FROM GATES TO SEQUENTIAL LOGIC
Start with AND, OR, NOT, NAND, NOR, XOR, and XNOR gates. Then explore multiplexers, demultiplexers, decoders, encoders, adders, latches, D/JK/T flip-flops, registers, counters, buses, clocks, LEDs, probes, and displays.

PRIVATE BY DESIGN
• No account and no sign-up — just open the app and start building
• Works fully offline; your circuits are saved locally on the device
• No ads, and your data is never sold; your designs stay yours
• Optional private iCloud sync between your own devices with the same Apple Account (iCloud is never required)

KEEP CONTROL OF YOUR PROJECTS
• Start from a blank canvas or a built-in example
• Search, sort, favorite, and archive your circuits
• Export a portable backup to save or share your work

Free to start with room for 3 circuits and up to 24 components each, plus six free challenges — unlock Cirquanta Pro once for unlimited circuits and components and the full challenge campaign, with no subscription.

Cirquanta is made for students, teachers, makers, and developers who want to understand or prototype digital systems. It simulates digital logic only; it is not an analog or SPICE simulator.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Cirquanta Pro | $9.99 | one-time |



## Version history (last 3 releases)

### 1.2 — 2026-08-30

Multi-selection and sticky notes.

Select several components at once with the new multi-select tool, then move, rotate, duplicate or delete them together — and duplicating now keeps the wiring inside your selection intact.

Pin sticky notes anywhere on the canvas to label a block, record a decision, or leave yourself a reminder. Six paper colours, and they move with a drag.

Plus a countdown ring on long press, and fixes across the editor.

### 1.1 — 2026-07-23

New: Challenges — a 30-level guided campaign.

Take on 30 built-in puzzles, from wiring a single output to building latches, counters, and a state machine. Every challenge gives you a clear objective, optional hints, and step-by-step guidance, then grades your solution with up to three stars for correctness and efficiency. The first six challenges are free; Cirquanta Pro unlocks the whole campaign.

Plus refinements and fixes across the editor and simulator.

### 1.0 — 2026-07-22

No release notes.

## More apps by Mewey

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- [Downology: NAS Downloads](https://appshunter.io/ios/app/downology-nas-downloads/id1589050613)
- [Amortix – Loan Tracker](https://appshunter.io/ios/app/amortix-loan-tracker/id6741812512)
- [Monabo: Subscription Tracker](https://appshunter.io/ios/app/monabo-subscription-tracker/id6741918947)
- [Movielogy](https://appshunter.io/ios/app/movielogy/id6747978761)
- [RetroGlass: Pixel Hourglass](https://appshunter.io/ios/app/retroglass-pixel-hourglass/id6748237372)

All apps by Mewey: https://appshunter.io/developer/530958597

## Related topics

[logic circuit simulator pro](https://appshunter.io/ios/topics/logic-circuit-simulator-pro)

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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 2026-09-04.*