# Arrette Scale sketch drafting vs Language Lab PT

The clearest difference is price: Language Lab PT at Free against Arrette Scale sketch drafting's $8.99. Language Lab PT also leads on device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Language Lab PT is free to download; Arrette Scale sketch drafting costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Arrette Scale sketch drafting ships an update every 3 months, Language Lab PT every 4 months. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Arrette Scale sketch drafting | Language Lab PT |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[2.6 (14 ratings)](https://appshunter.io/ios/app/arrette-scale-sketch-drafting/id730151020/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 53 MB | 15 MB |
| Requires iOS | 12.4 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Arrette, Inc.](https://appshunter.io/developer/730151023) | [Brightech - Innovative Links, Lda](https://appshunter.io/developer/982505474) |

## What reviewers say

### Arrette Scale sketch drafting

[App page](https://appshunter.io/ios/app/arrette-scale-sketch-drafting/id730151020)

This app allows designers to sketch freehand while maintaining precise scale, similar to vector drafting tools. It offers intuitive drawing tools and features for easy sharing and collaboration, simplifying the design process for professionals.

**Highlights:** Freehand drawing pens with vector scaling, Adjustable grid system (metric/decimal feet), Straight edge and circle edge tools, Distance and area measurement tools, Lasso tool for selection and manipulation, Layer support for organized designs, Easy sharing via email or saving to device

**In-app purchases:** none


### Language Lab PT

[App page](https://appshunter.io/ios/app/language-lab-pt/id6746442674)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arrette Scale sketch drafting free?

Arrette Scale sketch drafting costs $8.99, with no in-app purchases.

### Is Language Lab PT free?

Language Lab PT is free to download, with no in-app purchases.

### Do Arrette Scale sketch drafting or Language Lab PT have ads?

Neither Arrette Scale sketch drafting nor Language Lab PT shows ads.

### Which is updated more often, Arrette Scale sketch drafting or Language Lab PT?

Arrette Scale sketch drafting ships an update every 3 months, and Language Lab PT every 4 months. Most recently, Arrette Scale sketch drafting was updated on October 11, 2026 and Language Lab PT on October 15, 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.*