# Circuitry vs RoboTrail Coding Brain Trainer

The clearest difference is in-app purchases: Circuitry at none against RoboTrail Coding Brain Trainer's 1. Circuitry also leads on ads (none vs shown). RoboTrail Coding Brain Trainer's advantage is update cadence (every 5 days vs every 46 months) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. RoboTrail Coding Brain Trainer sells 1 one-off in-app purchase. Circuitry asks for nothing beyond the download.

Circuitry ships an update every 46 months, RoboTrail Coding Brain Trainer every 5 days. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Circuitry | RoboTrail Coding Brain Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (291 ratings)](https://appshunter.io/ios/app/circuitry/id959536839/reviews)** | — |
| Number of ratings | **291** | — |
| Positive reviews | 95.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 46 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 9 MB | 40 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Foster](https://appshunter.io/developer/959536838) | [woosik choi](https://appshunter.io/developer/1845521022) |

## What reviewers say

### Circuitry

[App page](https://appshunter.io/ios/app/circuitry/id959536839)

Explore boolean algebra and digital circuits through interactive logic gate puzzles. Build and experiment with complex circuit designs in a sandbox environment. Progress through levels to unlock new components and challenges.

**Highlights:** Interactive logic circuit diagrams, Boolean algebra learning, Logic gate puzzles, Sandbox circuit building, Unlockable circuit components, 21 logic problems

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning logic gates
- 💰 Free to use
- 🎮 Fun and engaging levels
- 💡 Playground mode for tinkering
- 📱 Good iPad simulator

**What reviewers complain about**

- 🐛 Clunky controls for moving/connecting
- 🐛 Wires can be difficult to detach
- 🐛 Inconsistent connection handling
- 🐛 Touch hitboxes are flaky
- 🐛 Drag-and-drop recognition issues

**Reported bugs**

- Problem #7 has no solution
- Wires get stuck/difficult to detach
- Clunky drag-and-drop for moving components and connecting wires
- 4-bit register has incorrect visual
- Problem #5 has a potential mistake in logic

**Requested features**

- More levels
- Explain more/help when stuck
- Ability to put text on buttons/LEDs
- More complex components (multiplexer, demultiplexer, ALU, shift register, decoders, etc.)
- Ability to adjust clock speed


### RoboTrail Coding Brain Trainer

[App page](https://appshunter.io/ios/app/robotrail-coding-brain-trainer/id6764465655)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $1.99 | one-time |


## Frequently asked questions

### Is Circuitry free?

Circuitry is free to download, with no in-app purchases.

### Is RoboTrail Coding Brain Trainer free?

RoboTrail Coding Brain Trainer is free to download, with in-app purchases available.

### Do Circuitry or RoboTrail Coding Brain Trainer have ads?

RoboTrail Coding Brain Trainer shows ads; Circuitry does not.

### Which is updated more often, Circuitry or RoboTrail Coding Brain Trainer?

Circuitry ships an update every 46 months, and RoboTrail Coding Brain Trainer every 5 days. Most recently, Circuitry was updated on October 6, 2026 and RoboTrail Coding Brain Trainer on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*