# Rosetta Stone Sapphire vs ODCalc

The clearest difference is in-app purchases: ODCalc at none against Rosetta Stone Sapphire's 1. Rosetta Stone Sapphire's advantage is iOS requirement (16.4 vs 26.2). On price, ads 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. ODCalc asks for nothing beyond the download.

## The numbers

| Metric | Rosetta Stone Sapphire | ODCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.2K ratings)](https://appshunter.io/ios/app/rosetta-stone-sapphire/id6757200007/reviews)** | — |
| Number of ratings | **2.2K** | — |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 196 MB | 7 MB |
| Requires iOS | **16.4** | 26.2 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Rosetta Stone, Ltd.](https://appshunter.io/developer/349688821) | [Pablo Gallardo Molina](https://appshunter.io/developer/1844186469) |

## 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 |


### ODCalc

[App page](https://appshunter.io/ios/app/odcalc/id6760970853)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rosetta Stone Sapphire free?

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

### Is ODCalc free?

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

### Do Rosetta Stone Sapphire or ODCalc have ads?

Neither Rosetta Stone Sapphire nor ODCalc 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.*