# Kübaj+: m³ Calc & PDF Quote — Log & Lumber Volume + PDF

> Log & Lumber Volume + PDF (iPhone/iPad app by Karya Boyraz.)

- Source: https://appshunter.io/ios/app/kubaj-plus-m-calc-and-pdf-quote/id6767344637 (this page in markdown: same URL + `.md`)
- Developer: [Karya Boyraz](https://appshunter.io/developer/1858982164)
- Category: Productivity, Business
- Price: Free with in-app purchases (on sale, was $9.99)
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, European Portuguese, Russian, Chinese (Simplified, China), European Spanish, Turkish
- Released: 2026-05-12
- Data updated: 2026-08-22
- User reviews in markdown: https://appshunter.io/ios/app/kubaj-plus-m-calc-and-pdf-quote/id6767344637/reviews.md

## What is Kübaj+?

Kübaj+ is a professional volume calculator built for lumber dealers, carpenters, truckers, contractors, and excavation crews who work in the field.

FEATURES

5 PROFESSIONAL FORMULAS
- Huber: mid-diameter times length (fastest)
- Smalian: average of both end diameters
- Newton: most accurate (3 readings)
- Doyle log rule (US standard)
- Scribner log rule (US standard)

SECTOR MODES
- Lumber / Furniture
- Concrete (C20/C25/C30 presets)
- Truck Bed
- Excavation
- Furniture

AUTOMATIC WEIGHT
Built-in density library: oak, beech, pine, spruce, concrete, soil, sand, gravel.

PROFESSIONAL PDF QUOTE
Quote, invoice, waybill PDFs with your company logo, IBAN, tax. One-tap WhatsApp send to client.

iCLOUD BACKUP
Calculations, customers, company info auto-sync via iCloud.

10 LANGUAGES
Turkish, English, German, French, Spanish, Italian, Arabic, Russian, Portuguese, Chinese.

PRIVACY FIRST
Zero data collection. Nothing leaves your device.

FOR
- Lumber dealers and mills
- Carpenters and furniture makers
- Contractors and engineers
- Truckers and hauliers
- Excavation crews
- Concrete companies

SUPPORT
karya.poyraz@gmail.com
https://karyaboyraz.stream/kubaj/

PRIVACY
https://karyaboyraz.stream/privacy/kubaj/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kubaj Pro | $9.99 | one-time |



## Version history (last 3 releases)

### 1.0.2 — 2026-06-25

• Free version is now ad-supported with banner and interstitial ads.
• Get Kübaj+ Pro to remove ads and unlock unlimited PDF sharing.
• Various improvements and bug fixes.

### 1.0.1 — 2026-06-12

Performance and stability improvements.

### 1.0 — 2026-05-12

No release notes.

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All apps by Karya Boyraz: https://appshunter.io/developer/1858982164

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*