# StampReady vs Contractor Freedom

The clearest difference is in-app purchases: Contractor Freedom at none against StampReady's 2. Contractor Freedom also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.3). On price and ads there is nothing between them.

Both are free to download. StampReady sells 2 in-app purchases, starting at $99.99 per 3 months. Contractor Freedom asks for nothing beyond the download.

## The numbers

| Metric | StampReady | Contractor Freedom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stampready-pe-exam-prep/id6760597963/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 18 MB |
| Requires iOS | 18.3 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Invictera](https://appshunter.io/developer/1878758866) | [Contractor Freedom LLC](https://appshunter.io/developer/6773672220) |

## What reviewers say

### StampReady

[App page](https://appshunter.io/ios/app/stampready-pe-exam-prep/id6760597963)

Master all 9 PE exam disciplines with adaptive study tools. Track your knowledge gaps and readiness for the engineering exam. Focus on genuine understanding, not just test-taking.

**Highlights:** Covers 9 PE exam disciplines, 3,800+ study items, Adaptive mastery tracking, Bayesian mastery model, Readiness Index score, Knowledge Decay Tracking, Cross-device sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StampReady Pro | $99.99 | per 3 months |
| StampReady Pro | $149.99 | per 6 months |


### Contractor Freedom

[App page](https://appshunter.io/ios/app/contractor-freedom/id6773672218)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is StampReady free?

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

### Is Contractor Freedom free?

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

### Do StampReady or Contractor Freedom have ads?

Neither StampReady nor Contractor Freedom shows ads.

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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.*