# Logic Circuit Simulator Pro vs Schema Studio

The clearest difference is update cadence: Logic Circuit Simulator Pro at every 2 days against Schema Studio's every 6 weeks. Logic Circuit Simulator Pro also leads on chart position (#169 vs unranked) and iOS requirement (12.0 vs 17.0). Schema Studio's advantage is price ($0.99 vs $2.99). On ads, in-app purchases and device support there is nothing between them.

Logic Circuit Simulator Pro costs $2.99 and Schema Studio $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Logic Circuit Simulator Pro ships an update every 2 days, Schema Studio every 6 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Logic Circuit Simulator Pro | Schema Studio |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 weeks |
| Monetization | Paid | — |
| Best chart rank | **#169** | — |
| Size | 127 MB | 5 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ali Mert TUFEKCI](https://appshunter.io/developer/1483311309) | [SMART BIT K.K](https://appshunter.io/developer/1896559487) |

## What reviewers say

### Logic Circuit Simulator Pro

[App page](https://appshunter.io/ios/app/logic-circuit-simulator-pro/id6742411780)

**Currently charting:** #169 Top Paid · Developer Tools (US App Store)

Design and simulate complex logic circuits with an intuitive interface. Build counters, ALUs, and even your own processors. Enjoy a premium, ad-free experience with lifetime access to all features.

**Highlights:** Advanced circuit design, Qnet algorithm for complex circuits, Build counter circuits and flip-flops, Construct Arithmetic Logic Units (ALUs), Design custom processors, Ad-free experience, Offline mode

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

**In-app purchases:** none


### Schema Studio

[App page](https://appshunter.io/ios/app/schema-studio-database-design/id6802662567)

**In-app purchases:** none


## Frequently asked questions

### Is Logic Circuit Simulator Pro free?

Logic Circuit Simulator Pro costs $2.99, with no in-app purchases.

### Is Schema Studio free?

Schema Studio costs $0.99, with no in-app purchases.

### Do Logic Circuit Simulator Pro or Schema Studio have ads?

Neither Logic Circuit Simulator Pro nor Schema Studio shows ads.

### Which is updated more often, Logic Circuit Simulator Pro or Schema Studio?

Logic Circuit Simulator Pro ships an update every 2 days, and Schema Studio every 6 weeks. Most recently, Logic Circuit Simulator Pro was updated on October 25, 2026 and Schema Studio on October 25, 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.*