# Kubaj vs AR Protractor

The clearest difference is iOS requirement: AR Protractor at 16 against Kubaj's 18.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Kubaj sells 3 in-app purchases, starting at $2.99 per 7 days and AR Protractor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kubaj ships an update monthly, AR Protractor every 3 weeks. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Kubaj | AR Protractor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kubaj-volume-calculator/id6746670197/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Subscription | — |
| Size | 18 MB | 2 MB |
| Requires iOS | 18.4 | **16** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bahattin Duran](https://appshunter.io/developer/1677311418) | [晓强 江](https://appshunter.io/developer/6775869180) |

## What reviewers say

### Kubaj

[App page](https://appshunter.io/ios/app/kubaj-volume-calculator/id6746670197)

Calculate timber and log volumes accurately using various industry-standard methods. This tool supports offline use, unit conversion, batch calculations, and PDF report exports for forestry professionals.

**Highlights:** Volume calculation (Huber, Smalian, Newton, JAS, Doyle, Scribner), Timber, lumber, firewood measurement, Diameter, length, trim input, Unit conversion (cm, m, in, ft), Batch calculation, PDF report export, Offline functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $2.99 | per 7 days |
| Pro Monthly | $6.99 | per month |
| Pro Annual | $29.99 | per year |


### AR Protractor

[App page](https://appshunter.io/ios/app/ar-protractor/id6788215923)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $4.99 | one-time |


## Frequently asked questions

### Is Kubaj free?

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

### Is AR Protractor free?

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

### Do Kubaj or AR Protractor have ads?

Neither Kubaj nor AR Protractor shows ads.

### Which is updated more often, Kubaj or AR Protractor?

Kubaj ships an update monthly, and AR Protractor every 3 weeks. Most recently, Kubaj was updated on October 21, 2026 and AR Protractor on October 19, 2026.

---

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