# Concrete Mix Calculator vs PDF Compressor

The clearest difference is price: PDF Compressor at Free against Concrete Mix Calculator's $2.99. PDF Compressor also leads on update cadence (every 2 months vs every 33 months). Concrete Mix Calculator's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 17.0). On ads and device support there is nothing between them.

PDF Compressor is free to download; Concrete Mix Calculator costs $2.99 up front. PDF Compressor sells 2 in-app purchases, starting at $4.99 per 7 days. Concrete Mix Calculator asks for nothing beyond the download.

Concrete Mix Calculator ships an update every 33 months, PDF Compressor every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Concrete Mix Calculator | PDF Compressor |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/concrete-mix-calculator/id1439445293/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 3 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gorasiya Vishal Nanjibhai](https://appshunter.io/developer/1287086933) | [Alex Gameli Heyman](https://appshunter.io/developer/1529812783) |

## What reviewers say

### Concrete Mix Calculator

[App page](https://appshunter.io/ios/app/concrete-mix-calculator/id1439445293)

Calculate precise concrete mixture ratios for construction projects. This tool helps determine the correct proportions of cement, sand, gravel, and water based on desired strength and volume. Supports multiple units and provides quick, shareable results.

**Highlights:** Customizable mix ratios, Multiple units supported, Quick results, Comprehensive guidance, Offline accessibility, User-friendly interface, Shareable results

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-resize-file/id6779411586)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is Concrete Mix Calculator free?

Concrete Mix Calculator costs $2.99, with no in-app purchases.

### Is PDF Compressor free?

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

### Do Concrete Mix Calculator or PDF Compressor have ads?

Neither Concrete Mix Calculator nor PDF Compressor shows ads.

### Which is updated more often, Concrete Mix Calculator or PDF Compressor?

Concrete Mix Calculator ships an update every 33 months, and PDF Compressor every 2 months. Most recently, Concrete Mix Calculator was updated on November 2, 2026 and PDF Compressor on October 31, 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.*