# Average Variable Cost vs Architects Ruler

The clearest difference is in-app purchases: Average Variable Cost at none against Architects Ruler's 1. Average Variable Cost also leads on update cadence (every 3 weeks vs every 3 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Architects Ruler sells 1 one-off in-app purchase. Average Variable Cost asks for nothing beyond the download.

Average Variable Cost ships an update every 3 weeks, Architects Ruler every 3 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Average Variable Cost | Architects Ruler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 41 MB | 4 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stage Coding](https://appshunter.io/developer/1637068135) | [Gijs Raggers](https://appshunter.io/developer/1438841415) |

## What reviewers say

### Average Variable Cost

[App page](https://appshunter.io/ios/app/average-variable-cost/id1618659899)

**Features:** macOS Compatibility

**In-app purchases:** none


### Architects Ruler

[App page](https://appshunter.io/ios/app/architects-ruler/id6755367822)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime scales menu | $0.99 | one-time |


## Frequently asked questions

### Is Average Variable Cost free?

Average Variable Cost is free to download, with no in-app purchases.

### Is Architects Ruler free?

Architects Ruler is free to download, with in-app purchases available.

### Do Average Variable Cost or Architects Ruler have ads?

Neither Average Variable Cost nor Architects Ruler shows ads.

### Which is updated more often, Average Variable Cost or Architects Ruler?

Average Variable Cost ships an update every 3 weeks, and Architects Ruler every 3 months. Most recently, Average Variable Cost was updated on October 27, 2026 and Architects Ruler on October 24, 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.*