# Rightful Ruler vs Muster Army Builder

The clearest difference is update cadence: Muster Army Builder at every 3 days against Rightful Ruler's every 2 months. Rightful Ruler's advantage is iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Rightful Ruler sells 2 in-app purchases, starting at $2.99 per month and Muster Army Builder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Rightful Ruler ships an update every 2 months, Muster Army Builder every 3 days. The most recent releases landed on September 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Rightful Ruler | Muster Army Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/rightful-ruler/id6443978932/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 135 MB | 6 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Auki Matterless Limited](https://appshunter.io/developer/1586607184) | [JAMES ROBERT DE RUYTER](https://appshunter.io/developer/6786275348) |

## What reviewers say

### Rightful Ruler

[App page](https://appshunter.io/ios/app/rightful-ruler/id6443978932)

This augmented reality tool simplifies distance measurements for tabletop wargames. Measure between bases, create custom paths, and visualize unit auras. It also offers experimental shared AR sessions for collaborative play.

**Highlights:** AR measurement, Base-to-base distance, Custom path measurement, Aura visualization, Shared AR sessions

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per month |
| Lifetime Pass | $79.99 | one-time |


### Muster Army Builder

[App page](https://appshunter.io/ios/app/muster-army-builder/id6786288983)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Muster Pro | $4.99 | one-time |


## Frequently asked questions

### Is Rightful Ruler free?

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

### Is Muster Army Builder free?

Muster Army Builder is free to download, with in-app purchases available.

### Do Rightful Ruler or Muster Army Builder have ads?

Neither Rightful Ruler nor Muster Army Builder shows ads.

### Which is updated more often, Rightful Ruler or Muster Army Builder?

Rightful Ruler ships an update every 2 months, and Muster Army Builder every 3 days. Most recently, Rightful Ruler was updated on September 25, 2026 and Muster Army Builder on October 13, 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.*