Circuitry vs Ostfalia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circuitry
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.
- Interactive logic circuit diagrams
- Boolean algebra learning
- Logic gate puzzles
- Sandbox circuit building
- Unlockable circuit components
- 21 logic problems
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Circuitry is a hands-on logic game that makes Boolean algebra, logic gates, and digital circuits easier to understand. Build circuits by connecting AND, OR, XOR, NOT, and other gates, then experiment with different inputs to see how signals travel through your design. Work through 22 progressively challenging problems to unlock new components. Then use Playground Mode to create and test circuits of your own. Features: - 22 logic-circuit problems - Interactive circuit building and simulation - 36 different circuit components - Playground Mode for creating your own circuits
Ostfalia
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.
- Academic calendar and scheduling
- Grade point average calculation
- Library book loan tracking and renewal
- University email access
- Push notifications for new grades
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Ostfalia App accompanies you through your studies and on campus. Together you are the perfect team. The app offers you everything you need to start every day well prepared, no matter if you have just started your studies or are already in your master's program. The app is your team partner on campus, which is impressive and integrates perfectly into your daily study routine. In no time at all, you have all the important information about your studies with you, wherever you are. You'll be surprised how easy it is. Calendar: The best thing to do is to start managing your schedule with the calendar. This way you have an overview of all your appointments and never miss a lecture or other important events again. Grades: Calculate your grade point average and be the first to know your new grades via push notification! Library: Never pay the late fee again! With “Ostfalia” you always have an eye on the loan period of your books and you can easily renew your books with just a few clicks. Mail: Read and reply to your university mails. No complicated setup necessary!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Circuitry | Ostfalia |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (291 ratings) — better | — |
| Positive reviews | 95.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 291 — better | — |
| Update frequency | Every 46 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 9 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | Anthony Foster | UniNow GmbH |
Customer experience
Circuitry
Ostfalia
Bugs and requests
Circuitry
Reported bugs
7 issues- 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
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- Problem #7 (make OR with three NANDS) doesn't work correctly
- Full adder is missing an OR gate (reported)
Requested features
16 requests- 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
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- Keep track of previous solutions
- Don't gate playground mode components behind problem progress
- Discrete math notation for circuits
- Simplification and scoring in problem mode
- Remove feature for components
- Add subtractor levels
- Rotation of components
- Naming buttons/outputs
- Labels for circuits
- Splitter to organize wiring
- Undo button
Ostfalia
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Circuitry
No in-app purchases
Ostfalia
No in-app purchases









