# Ruler vs taxmen.ai

The clearest difference is ads: taxmen.ai at none against Ruler's shown. taxmen.ai also leads on update cadence (every 6 days vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Ruler sells 1 one-off in-app purchase and taxmen.ai sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Ruler ships an update every 5 months, taxmen.ai every 6 days. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Ruler | taxmen.ai |
| --- | --- | --- |
| Price | Free | Free |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 52 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [mitsunori oishi](https://appshunter.io/developer/905649994) | [ABDUL BASITH OTHAYOTH KANDI BASHEER CHERIYA CHANGOTH](https://appshunter.io/developer/1823415346) |

## 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 |


### taxmen.ai

[App page](https://appshunter.io/ios/app/taxmenai/id6747921986)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly Plan | $4.99 | per month |
| Premium Monthly Plan | $12.99 | per month |
| Basic Yearly Plan | $49.99 | per year |
| Premium Yearly Plan | $129.99 | per year |
| Paid Credits (On Demand) | $1.99 | one-time |


## Frequently asked questions

### Is Ruler free?

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

### Is taxmen.ai free?

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

### Do Ruler or taxmen.ai have ads?

Ruler shows ads; taxmen.ai does not.

### Which is updated more often, Ruler or taxmen.ai?

Ruler ships an update every 5 months, and taxmen.ai every 6 days. Most recently, Ruler was updated on October 21, 2026 and taxmen.ai on October 16, 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.*