# Prep Zone Academy vs Common Words

Prep Zone Academy and Common Words are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Prep Zone Academy sells 10 one-off in-app purchases and Common Words sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Prep Zone Academy ships an update every 6 months, Common Words every 4 months. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Prep Zone Academy | Common Words |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Size | 146 MB | 4 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Online Learning](https://appshunter.io/developer/1790866777) | [Fiume Systems Pty Limited](https://appshunter.io/developer/1767090915) |

## What reviewers say

### Prep Zone Academy

[App page](https://appshunter.io/ios/app/prep-zone-academy/id6448905281)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - 18900 | $199.99 | one-time |
| Package - 21900 | $199.99 | one-time |
| Package - 29900 | $299.99 | one-time |
| Package - 34900 | $349.99 | one-time |
| Package - 39900 | $399.99 | one-time |
| Package - 54900 | $499.99 | one-time |
| Package - 59900 | $599.99 | one-time |
| Package - 69900 | $699.99 | one-time |
| Package - 79900 | $799.99 | one-time |
| Package - 89900 | $899.99 | one-time |


### Common Words

[App page](https://appshunter.io/ios/app/common-words-flashcards/id6758709745)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| US | $4.99 | per month |
| US | $39.99 | per year |


## Frequently asked questions

### Is Prep Zone Academy free?

Prep Zone Academy is free to download, with in-app purchases available.

### Is Common Words free?

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

### Do Prep Zone Academy or Common Words have ads?

Neither Prep Zone Academy nor Common Words shows ads.

### Which is updated more often, Prep Zone Academy or Common Words?

Prep Zone Academy ships an update every 6 months, and Common Words every 4 months. Most recently, Prep Zone Academy was updated on November 3, 2026 and Common Words on November 9, 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.*