# LUMINA vs Ruler ▸

The clearest difference is update cadence: Ruler ▸ at daily against LUMINA's every 11 days. LUMINA's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LUMINA ships an update every 11 days, Ruler ▸ daily. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LUMINA | Ruler ▸ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Daily** |
| Size | 18 MB | 74 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [展联软件](https://appshunter.io/developer/1033813531) | [Yaroslava Majstrovich](https://appshunter.io/developer/1468058631) |

## What reviewers say

### LUMINA

[App page](https://appshunter.io/ios/app/lumina/id1526804721)

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

**In-app purchases:** none


### Ruler ▸

[App page](https://appshunter.io/ios/app/ruler/id6805987132)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LUMINA free?

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

### Is Ruler ▸ free?

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

### Do LUMINA or Ruler ▸ have ads?

Neither LUMINA nor Ruler ▸ shows ads.

### Which is updated more often, LUMINA or Ruler ▸?

LUMINA ships an update every 11 days, and Ruler ▸ daily. Most recently, LUMINA was updated on October 27, 2026 and Ruler ▸ on October 31, 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.*