# Ruler vs Naily

The clearest difference is price: Ruler at Free against Naily's $0.99. Naily's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Ruler is free to download; Naily costs $0.99 up front. Ruler sells 1 one-off in-app purchase. Naily asks for nothing beyond the download.

Ruler ships an update every 5 months, Naily every 9 months. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Ruler | Naily |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 63.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 9 months |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 8 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [mitsunori oishi](https://appshunter.io/developer/905649994) | [CSP LABO, K.K.](https://appshunter.io/developer/1111285651) |

## What reviewers say

### Ruler

[App page](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707)

This app displays various measurement scales for length, including meters and inches. It allows users to set magnification ratios and reduced scales for different applications. Users can calibrate the ruler and adjust PPI settings for accurate measurements.

**Highlights:** Display various measurement scales, Set magnification ratios, Set reduced scales, Measure in meters and inches, Free mode for custom scales, Calibration for accuracy, PPI setting

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Ads | $0.99 | one-time |


### Naily

[App page](https://appshunter.io/ios/app/naily/id1456516875)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ruler free?

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

### Is Naily free?

Naily costs $0.99, with no in-app purchases.

### Do Ruler or Naily have ads?

Ruler shows ads; Naily does not.

### Which is updated more often, Ruler or Naily?

Ruler ships an update every 5 months, and Naily every 9 months. Most recently, Ruler was updated on October 21, 2026 and Naily on October 26, 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.*