# Circuitry vs TNK Scope

The clearest difference is update cadence: TNK Scope at every 2 weeks against Circuitry's every 46 months. TNK Scope also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Circuitry ships an update every 46 months, TNK Scope every 2 weeks. Both last shipped on October 6, 2026.

## The numbers

| Metric | Circuitry | TNK Scope |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 9 MB | 23 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Foster](https://appshunter.io/developer/959536838) | [TNK LAB CO., LTD.](https://appshunter.io/developer/1875620660) |

## 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


### TNK Scope

[App page](https://appshunter.io/ios/app/tnk-scope/id6758901171)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circuitry free?

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

### Is TNK Scope free?

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

### Do Circuitry or TNK Scope have ads?

Neither Circuitry nor TNK Scope shows ads.

### Which is updated more often, Circuitry or TNK Scope?

Circuitry ships an update every 46 months, and TNK Scope every 2 weeks. Most recently, Circuitry was updated on October 6, 2026 and TNK Scope on October 6, 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.*