# 21 CFR Part 58 vs Clockwork Education

The clearest difference is price: Clockwork Education at Free against 21 CFR Part 58's $9.99. Clockwork Education also leads on update cadence (every 8 months vs every 28 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Clockwork Education is free to download; 21 CFR Part 58 costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

21 CFR Part 58 ships an update every 28 months, Clockwork Education every 8 months. The most recent releases landed on June 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 21 CFR Part 58 | Clockwork Education |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/21-cfr-part-58/id1446392872/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 8 months** |
| Monetization | Paid | — |
| Size | 3 MB | 35 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cimcon Software, Inc.](https://appshunter.io/developer/596722626) | [Clockwork Education Ltd](https://appshunter.io/developer/1626982482) |

## What reviewers say

### 21 CFR Part 58

[App page](https://appshunter.io/ios/app/21-cfr-part-58/id1446392872)

Access the complete text of FDA's 21 CFR Part 58 regulation on your mobile device. This app offers a convenient reference for practitioners, allowing for easy navigation, keyword searching, and bookmarking of important sections.

**Highlights:** Full text of 21 CFR Part 58, Table of Contents navigation, Keyword search functionality, Bookmark pages, Email content

**Features:** macOS Compatibility

**In-app purchases:** none


### Clockwork Education

[App page](https://appshunter.io/ios/app/clockwork-education/id1626982480)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 21 CFR Part 58 free?

21 CFR Part 58 costs $9.99, with no in-app purchases.

### Is Clockwork Education free?

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

### Do 21 CFR Part 58 or Clockwork Education have ads?

Neither 21 CFR Part 58 nor Clockwork Education shows ads.

### Which is updated more often, 21 CFR Part 58 or Clockwork Education?

21 CFR Part 58 ships an update every 28 months, and Clockwork Education every 8 months. Most recently, 21 CFR Part 58 was updated on June 1, 2026 and Clockwork Education on October 27, 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.*