# Secrets de Lyon vs Prepstr

The clearest difference is ads: Prepstr at none against Secrets de Lyon's shown. Prepstr also leads on update cadence (every 4 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Secrets de Lyon sells 1 in-app purchase, starting at $1.99 per year and Prepstr sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Secrets de Lyon ships an update every 3 weeks, Prepstr every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Secrets de Lyon | Prepstr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 106 MB | 40 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeremie Guillot](https://appshunter.io/developer/1835880581) | [Prepstr](https://appshunter.io/developer/1896594682) |

## What reviewers say

### Secrets de Lyon

[App page](https://appshunter.io/ios/app/secrets-de-lyon/id6751578275)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per year |


### Prepstr

[App page](https://appshunter.io/ios/app/prepstr-toeic-and-toefl/id6768670573)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hebdomadaire | $3.99 | per 7 days |
| Mensuel | $11.99 | per month |
| Annuel | $49.99 | per year |


## Frequently asked questions

### Is Secrets de Lyon free?

Secrets de Lyon is free to download, with in-app purchases available.

### Is Prepstr free?

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

### Do Secrets de Lyon or Prepstr have ads?

Secrets de Lyon shows ads; Prepstr does not.

### Which is updated more often, Secrets de Lyon or Prepstr?

Secrets de Lyon ships an update every 3 weeks, and Prepstr every 4 days. Most recently, Secrets de Lyon was updated on October 25, 2026 and Prepstr on October 25, 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.*