# ARuler vs KnoHive

The clearest difference is rating: KnoHive at 5.0 against ARuler's 2.0. ARuler's advantage is iOS requirement (11.0 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.

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

KnoHive holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ARuler ships an update every 3 weeks, KnoHive monthly. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ARuler | KnoHive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/aruler-simple-ar-ruler/id1337149397/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knohive/id6754782275/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 23 MB | 36 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rustam Amirhanov](https://appshunter.io/developer/1278605063) | [AIVolve LLC](https://appshunter.io/developer/1850030325) |

## What reviewers say

### ARuler

[App page](https://appshunter.io/ios/app/aruler-simple-ar-ruler/id1337149397)

This application uses augmented reality to measure lengths and areas in your environment. Simply point your device to get quick and easy measurements.

**Highlights:** Augmented reality measurement, Measure length, Measure area, Simple interface

**In-app purchases:** none


### KnoHive

[App page](https://appshunter.io/ios/app/knohive/id6754782275)

Access your organization's training materials and get instant answers to your questions. This app allows for independent learning by providing trusted information sourced directly from your company's content.

**Highlights:** Access organizational training materials, Ask natural language questions, Get trusted answers from content, Independent learning, Browse published training

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

**In-app purchases:** none


## Frequently asked questions

### Is ARuler free?

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

### Is KnoHive free?

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

### Which has better reviews, ARuler or KnoHive?

KnoHive is rated higher. ARuler averages 2.0 out of 5 from 1 ratings, while KnoHive averages 5.0 from 1 ratings.

### Do ARuler or KnoHive have ads?

Neither ARuler nor KnoHive shows ads.

### Which is updated more often, ARuler or KnoHive?

ARuler ships an update every 3 weeks, and KnoHive monthly. Most recently, ARuler was updated on September 30, 2026 and KnoHive on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*