# Arrette Scale sketch drafting vs Arch Layout Calculator

The clearest difference is price: Arch Layout Calculator at $0.99 against Arrette Scale sketch drafting's $8.99. Arrette Scale sketch drafting's advantage is update cadence (every 3 months vs every 38 months) and iOS requirement (12.4 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Arrette Scale sketch drafting costs $8.99 and Arch Layout Calculator $0.99 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, Arch Layout Calculator every 38 months. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Arrette Scale sketch drafting | Arch Layout Calculator |
| --- | --- | --- |
| Price | $8.99 | **$0.99** |
| 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 38 months |
| Monetization | Free | — |
| Size | 53 MB | 1 MB |
| Requires iOS | **12.4** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Arrette, Inc.](https://appshunter.io/developer/730151023) | [H3Apps LLC](https://appshunter.io/developer/598620927) |

## 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


### Arch Layout Calculator

[App page](https://appshunter.io/ios/app/arch-layout-calculator/id1630831077)

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

**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 Arch Layout Calculator free?

Arch Layout Calculator costs $0.99, with no in-app purchases.

### Do Arrette Scale sketch drafting or Arch Layout Calculator have ads?

Neither Arrette Scale sketch drafting nor Arch Layout Calculator shows ads.

### Which is updated more often, Arrette Scale sketch drafting or Arch Layout Calculator?

Arrette Scale sketch drafting ships an update every 3 months, and Arch Layout Calculator every 38 months. Most recently, Arrette Scale sketch drafting was updated on October 11, 2026 and Arch Layout Calculator on October 8, 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.*