# ChemiNamer vs Skilled Trades iCert Prep

The clearest difference is price: Skilled Trades iCert Prep at Free against ChemiNamer's $1.99. ChemiNamer's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Skilled Trades iCert Prep is free to download; ChemiNamer costs $1.99 up front. Skilled Trades iCert Prep sells 3 in-app purchases, starting at $34.99 per 3 months. ChemiNamer asks for nothing beyond the download.

## The numbers

| Metric | ChemiNamer | Skilled Trades iCert Prep |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 20 MB | 113 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Jamie Coleman](https://appshunter.io/developer/1711849262) | [iCert Inc.](https://appshunter.io/developer/1650970619) |

## What reviewers say

### ChemiNamer

[App page](https://appshunter.io/ios/app/cheminamer/id6478984904)

**Features:** macOS Compatibility

**In-app purchases:** none


### Skilled Trades iCert Prep

[App page](https://appshunter.io/ios/app/skilled-trades-icert-prep/id6581486443)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Month Resource & Exam Access | $34.99 | per 3 months |
| 6-Month Resource & Exam Access | $49.99 | per 6 months |
| Annual Resource & Exam Access | $79.99 | per year |


## Frequently asked questions

### Is ChemiNamer free?

ChemiNamer costs $1.99, with no in-app purchases.

### Is Skilled Trades iCert Prep free?

Skilled Trades iCert Prep is free to download, with in-app purchases available.

### Do ChemiNamer or Skilled Trades iCert Prep have ads?

Neither ChemiNamer nor Skilled Trades iCert Prep 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.*