# Scala Architectural Scale vs Residency Tasks

The clearest difference is in-app purchases: Residency Tasks at none against Scala Architectural Scale's 1. Residency Tasks also leads on update cadence (every 3 days vs every 4 months). Scala Architectural Scale's advantage is iOS requirement (15.6 vs 18.4). On price, ads and device support there is nothing between them.

Both are free to download. Scala Architectural Scale sells 1 one-off in-app purchase. Residency Tasks asks for nothing beyond the download.

Scala Architectural Scale ships an update every 4 months, Residency Tasks every 3 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Scala Architectural Scale | Residency Tasks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (24 ratings)](https://appshunter.io/ios/app/scala-architectural-scale/id1090018333/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 1 MB | 6 MB |
| Requires iOS | **15.6** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Noerah Alvi](https://appshunter.io/developer/1088349320) | [Bhavin Dave](https://appshunter.io/developer/1120575799) |

## What reviewers say

### Scala Architectural Scale

[App page](https://appshunter.io/ios/app/scala-architectural-scale/id1090018333)

This app allows users to measure printed architectural and engineering drawings directly on their device. It supports both known and unknown scales, offering fixed and variable scale options for precise measurements. Users can also select secondary units for quick conversions.

**Highlights:** Fixed and variable scale measurement, Supports unknown drawing scales, Secondary unit conversions (metric, decimal feet, feet/inches), Adjustable measurement precision, Extensive scale options for architectural, engineering, and metric drawings

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scala Full Version | $2.99 | one-time |


### Residency Tasks

[App page](https://appshunter.io/ios/app/residency-tasks/id6746600436)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scala Architectural Scale free?

Scala Architectural Scale is free to download, with in-app purchases available.

### Is Residency Tasks free?

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

### Do Scala Architectural Scale or Residency Tasks have ads?

Neither Scala Architectural Scale nor Residency Tasks shows ads.

### Which is updated more often, Scala Architectural Scale or Residency Tasks?

Scala Architectural Scale ships an update every 4 months, and Residency Tasks every 3 days. Most recently, Scala Architectural Scale was updated on October 23, 2026 and Residency Tasks 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.*