# Circuitry vs Ostfalia

The clearest difference is monetization model: Ostfalia at free against Circuitry's paid. Ostfalia also leads on update cadence (every 2 weeks vs every 46 months) and device support (4 vs 1). On price, review sentiment, ads and in-app purchases 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, Ostfalia every 2 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Circuitry | Ostfalia |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 9 MB | 104 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Foster](https://appshunter.io/developer/959536838) | [UniNow GmbH](https://appshunter.io/developer/1099302123) |

## 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


### Ostfalia

[App page](https://appshunter.io/ios/app/ostfalia/id6739488576)

This app helps students manage their academic life by providing tools for scheduling, grade tracking, library management, and university email access. It aims to streamline daily study routines and keep users informed about important campus information.

**Highlights:** Academic calendar and scheduling, Grade point average calculation, Library book loan tracking and renewal, University email access, Push notifications for new grades

**Features:** macOS Compatibility, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Circuitry free?

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

### Is Ostfalia free?

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

### Do Circuitry or Ostfalia have ads?

Neither Circuitry nor Ostfalia shows ads.

### Which is updated more often, Circuitry or Ostfalia?

Circuitry ships an update every 46 months, and Ostfalia every 2 weeks. Most recently, Circuitry was updated on October 6, 2026 and Ostfalia on October 1, 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.*