# Orthographic Projection vs PolyLearn Multilingual

The clearest difference is update cadence: PolyLearn Multilingual at every 10 days against Orthographic Projection's every 57 months. Orthographic Projection's advantage is device support (5 vs 3). 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.

Orthographic Projection ships an update every 57 months, PolyLearn Multilingual every 10 days. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Orthographic Projection | PolyLearn Multilingual |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/orthographic-projection/id1062526689/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 57 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 384 MB | 30 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) | [CHUNLONG LI](https://appshunter.io/developer/1864794193) |

## 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


### PolyLearn Multilingual

[App page](https://appshunter.io/ios/app/polylearn-multilingual/id6757133856)

**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 PolyLearn Multilingual free?

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

### Do Orthographic Projection or PolyLearn Multilingual have ads?

Neither Orthographic Projection nor PolyLearn Multilingual shows ads.

### Which is updated more often, Orthographic Projection or PolyLearn Multilingual?

Orthographic Projection ships an update every 57 months, and PolyLearn Multilingual every 10 days. Most recently, Orthographic Projection was updated on June 1, 2026 and PolyLearn Multilingual on September 19, 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.*