# Orthographic Projection vs Logic

The clearest difference is rating: Orthographic Projection at 4.3 against Logic's 3.6. Orthographic Projection also leads on ads (none vs shown) and monetization model (free vs ad-supported). Logic's advantage is update cadence (every 5 weeks vs every 57 months) and review sentiment (21% vs 0%). On price, ratings volume, 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.

Orthographic Projection holds the better App Store score, 4.3 against 3.6. Both are backed by a comparable volume of ratings — 6 and 7 respectively. Written reviews complicate that: 0% of Orthographic Projection's written reviews are positive against 21% of Logic's, so the app with the better star average is not the one people write more warmly about.

Orthographic Projection ships an update every 57 months, Logic every 5 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Orthographic Projection | Logic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/orthographic-projection/id1062526689/reviews)** | [3.6 (7 ratings)](https://appshunter.io/ios/app/logic-gate-design/id1618913375/reviews) |
| Number of ratings | 6 | **7** |
| Positive reviews | 0.0% of reviews | **21.4% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 57 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 384 MB | 35 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Hajdu](https://appshunter.io/developer/896377670) | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) |

## What reviewers say

### Orthographic Projection

[App page](https://appshunter.io/ios/app/orthographic-projection/id1062526689)

Master orthographic projection with this interactive educational app. Ideal for technical students and engineers, it offers engaging ways to learn and test your skills in 1st and 3rd angle projections through fun, gamified modes. Build your knowledge and earn stars as you progress.

**Highlights:** Interactive orthographic projection learning, 1st and 3rd Angle Projection modes, Easy and Hard difficulty modes, Spatial orientation improvement, Symbolic drawing creation, 32+ parts for practice

**In-app purchases:** none


### Logic

[App page](https://appshunter.io/ios/app/logic-gate-design/id1618913375)

Design, simulate, and simplify logic gate networks. Generate truth tables, minimized boolean expressions, and waveforms. This app is ideal for students and engineers to explore digital logic.

**Highlights:** Design logic gate networks, Simulate network behavior, Generate truth tables, Minimize boolean expressions, Create input-output waveforms, Study boolean algebra theorems

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

**In-app purchases:** none


## Frequently asked questions

### Is Orthographic Projection free?

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

### Is Logic free?

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

### Which has better reviews, Orthographic Projection or Logic?

Orthographic Projection is rated higher. Orthographic Projection averages 4.3 out of 5 from 6 ratings, while Logic averages 3.6 from 7 ratings.

### Do Orthographic Projection or Logic have ads?

Logic shows ads; Orthographic Projection does not.

### Which is updated more often, Orthographic Projection or Logic?

Orthographic Projection ships an update every 57 months, and Logic every 5 weeks. Most recently, Orthographic Projection was updated on October 24, 2026 and Logic on October 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.*