# HWF Alliance Sample Book App vs ECC DocuCheck

The clearest difference is update cadence: HWF Alliance Sample Book App at every 6 months against ECC DocuCheck's every 29 months. HWF Alliance Sample Book App also leads on iOS requirement (9.0 vs 12.0). 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.

HWF Alliance Sample Book App ships an update every 6 months, ECC DocuCheck every 29 months. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | HWF Alliance Sample Book App | ECC DocuCheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 29 months |
| Size | 1.7 GB | 45 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Horizons Window Fashions, Inc.](https://appshunter.io/developer/588450164) | [Environmental Chemical Corp.](https://appshunter.io/developer/1521481680) |

## What reviewers say

### HWF Alliance Sample Book App

[App page](https://appshunter.io/ios/app/hwf-alliance-sample-book-app/id959299719)

**Features:** macOS Compatibility

**In-app purchases:** none


### ECC DocuCheck

[App page](https://appshunter.io/ios/app/ecc-docucheck/id6452017965)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HWF Alliance Sample Book App free?

HWF Alliance Sample Book App is free to download, with no in-app purchases.

### Is ECC DocuCheck free?

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

### Do HWF Alliance Sample Book App or ECC DocuCheck have ads?

Neither HWF Alliance Sample Book App nor ECC DocuCheck shows ads.

### Which is updated more often, HWF Alliance Sample Book App or ECC DocuCheck?

HWF Alliance Sample Book App ships an update every 6 months, and ECC DocuCheck every 29 months. Most recently, HWF Alliance Sample Book App was updated on September 29, 2026 and ECC DocuCheck on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*