# Rosetta Stone Sapphire vs OSSLT Practice Test & Prep

The clearest difference is update cadence: Rosetta Stone Sapphire at every 2 weeks against OSSLT Practice Test & Prep's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Rosetta Stone Sapphire sells 1 in-app purchase, starting at $19.99 per month and OSSLT Practice Test & Prep sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Rosetta Stone Sapphire ships an update every 2 weeks, OSSLT Practice Test & Prep every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Rosetta Stone Sapphire | OSSLT Practice Test & Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.1K ratings)](https://appshunter.io/ios/app/rosetta-stone-sapphire/id6757200007/reviews)** | — |
| Number of ratings | **2.1K** | — |
| Positive reviews | 28.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 196 MB | 142 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rosetta Stone, Ltd.](https://appshunter.io/developer/349688821) | [Alpha Beat Limited](https://appshunter.io/developer/1745742707) |

## What reviewers say

### Rosetta Stone Sapphire

[App page](https://appshunter.io/ios/app/rosetta-stone-sapphire/id6757200007)

Learn a new language through bite-sized, immersive lessons and real-world practice scenarios. Perfect your pronunciation with advanced speech recognition technology and explore over 25 languages. Customize your learning with flashcards and games.

**Highlights:** Bite-sized immersive lessons, Advanced speech recognition, Real-world practice scenarios, Access to 25+ languages, Customizable flashcards and games, Cross-platform access (mobile & web)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rosetta Stone Sapphire | $19.99 | per month |


### OSSLT Practice Test & Prep

[App page](https://appshunter.io/ios/app/osslt-practice-test-and-prep/id6797607323)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Rosetta Stone Sapphire free?

Rosetta Stone Sapphire is free to download, with in-app purchases available.

### Is OSSLT Practice Test & Prep free?

OSSLT Practice Test & Prep is free to download, with in-app purchases available.

### Do Rosetta Stone Sapphire or OSSLT Practice Test & Prep have ads?

Neither Rosetta Stone Sapphire nor OSSLT Practice Test & Prep shows ads.

### Which is updated more often, Rosetta Stone Sapphire or OSSLT Practice Test & Prep?

Rosetta Stone Sapphire ships an update every 2 weeks, and OSSLT Practice Test & Prep every 2 months. Most recently, Rosetta Stone Sapphire was updated on October 28, 2026 and OSSLT Practice Test & Prep on October 24, 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.*