# iBuild vs Contractor Calc Pro

The clearest difference is in-app purchases: iBuild at none against Contractor Calc Pro's 1. iBuild also leads on device support (3 vs 1). Contractor Calc Pro's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and iOS requirement there is nothing between them.

Both are free to download. Contractor Calc Pro sells 1 one-off in-app purchase. iBuild asks for nothing beyond the download.

iBuild ships an update every 2 months, Contractor Calc Pro every 3 weeks. The most recent releases landed on September 9, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | iBuild | Contractor Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/contractor-calc-pro/id6761248901/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 12 MB | 5 MB |
| Requires iOS | **17** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Prokopowicz](https://appshunter.io/developer/1805197888) | [ZIma Logistics LLC](https://appshunter.io/developer/1883563240) |

## What reviewers say

### iBuild

[App page](https://appshunter.io/ios/app/ibuild-architect/id6752885747)

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

**In-app purchases:** none


### Contractor Calc Pro

[App page](https://appshunter.io/ios/app/contractor-calc-pro/id6761248901)

This app provides 20 essential construction calculators for instant material estimates with real costs. It offers fraction input, offline calculation, and the ability to save and export estimates as PDFs. Users can customize material prices for accurate local jobsite calculations.

**Highlights:** 20 essential construction calculators, Instant material estimates with real costs, Fraction input (5 1/2, 5' 6-1/2", decimals), Offline calculation, Save and recall calculations by job name, Export professional PDF estimates, Customizable material prices

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $4.99 | one-time |


## Frequently asked questions

### Is iBuild free?

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

### Is Contractor Calc Pro free?

Contractor Calc Pro is free to download, with in-app purchases available.

### Do iBuild or Contractor Calc Pro have ads?

iBuild shows ads; Contractor Calc Pro does not.

### Which is updated more often, iBuild or Contractor Calc Pro?

iBuild ships an update every 2 months, and Contractor Calc Pro every 3 weeks. Most recently, iBuild was updated on September 9, 2026 and Contractor Calc Pro on September 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.*