# Scales HD vs ArchitectScaler

The clearest difference is price: ArchitectScaler at Free against Scales HD's $7.99. ArchitectScaler also leads on update cadence (every 14 months vs every 95 months). Scales HD's advantage is iOS requirement (15.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

ArchitectScaler is free to download; Scales HD costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scales HD ships an update every 95 months, ArchitectScaler every 14 months. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Scales HD | ArchitectScaler |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/scales-hd/id418843481/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 95 months | **Every 14 months** |
| Monetization | Paid | — |
| Size | 7 MB | 3 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marcelo Mejia Cobo](https://appshunter.io/developer/365496933) | [Pratheek Balakrishna](https://appshunter.io/developer/1826744138) |

## What reviewers say

### Scales HD

[App page](https://appshunter.io/ios/app/scales-hd/id418843481)

This app provides a digital architectural and engineering scale ruler with various US and Metric scales. It includes tools like a tape measure and spirit level, with options to flip scales and lock scrolling. Control your music library directly from the app.

**Highlights:** Architectural US Scales, Engineering US Scales, Metric SI Scales, Tape Measure Tool, Spirit Level Tool, Flip Scales Option, Music Control

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

**In-app purchases:** none


### ArchitectScaler

[App page](https://appshunter.io/ios/app/architectscaler/id6748638487)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scales HD free?

Scales HD costs $7.99, with no in-app purchases.

### Is ArchitectScaler free?

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

### Do Scales HD or ArchitectScaler have ads?

Neither Scales HD nor ArchitectScaler shows ads.

### Which is updated more often, Scales HD or ArchitectScaler?

Scales HD ships an update every 95 months, and ArchitectScaler every 14 months. Most recently, Scales HD was updated on October 23, 2026 and ArchitectScaler 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.*