# Quantium vs Contractors.es

The clearest difference is update cadence: Quantium at every 4 weeks against Contractors.es's every 2 months. Quantium also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Quantium ships an update every 4 weeks, Contractors.es every 2 months. The most recent releases landed on August 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Quantium | Contractors.es |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 34 MB | 24 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quantium](https://appshunter.io/developer/1517006961) | [Contractors.es Sp. z o. o.](https://appshunter.io/developer/6777082473) |

## What reviewers say

### Quantium

[App page](https://appshunter.io/ios/app/quantium/id1517006962)

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

**In-app purchases:** none


### Contractors.es

[App page](https://appshunter.io/ios/app/contractorses/id1567381400)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quantium free?

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

### Is Contractors.es free?

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

### Do Quantium or Contractors.es have ads?

Neither Quantium nor Contractors.es shows ads.

### Which is updated more often, Quantium or Contractors.es?

Quantium ships an update every 4 weeks, and Contractors.es every 2 months. Most recently, Quantium was updated on August 10, 2026 and Contractors.es on September 17, 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.*