---
title: "Rosetta Stone: Fluency Builder — App Overview"
url: https://marlvel.ai/apps/rosetta-stone-fluency-builder
category: Education
developer: Rosetta Stone, Ltd.
platforms: ios, android
rating: 2.8 (2.6K ratings)
pricing: free
report_level: overview
generated: 2026-04-23
last_verified: "2026-04-23T19:52:53.194Z"
overall_rating: 2.8
total_reviews: 2742
data_age_days: 204
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers a robust feature set for corporate language training, users report significant technical instability and usability issues that hinder the learning experience.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Education |
| Rating | 2.8 ★ (2.6K) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 3.22.0 |
| Latest Version (Android) | 3.22.1 |
| Developer | Rosetta Stone, Ltd. |

<!-- SECTION: Summary -->
## What is Rosetta Stone: Fluency Builder?

Rosetta Stone: Fluency Builder is a language learning platform designed for corporate environments that enables cross-device progress syncing. It offers a structured curriculum focused on practical communication skills, pronunciation feedback, and progress tracking.

<!-- SECTION: Key Features -->
## Key Features

- **Automatic Syncing**: Maintains lesson progress across desktop and mobile devices.
- **Offline Access**: Allows users to download lessons for learning without an active internet connection.
- **Tailored Learning Experience**: Customizes content based on the user's current proficiency level and specific learning goals.
- **Pronunciation Feedback**: Provides real-time analysis of reading and speech to improve language accuracy.

<!-- SECTION: Target Audience -->
## Who is it for?

Corporate employees enrolled in employer-sponsored language training programs.

<!-- SECTION: Links -->
## Links

- App Store (App Store ID 1440193976)
- Google Play (Google Play ID com.rosettastone.gaia)
- [Full Intelligence Report](https://marlvel.ai/apps/rosetta-stone-fluency-builder)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/rosetta-stone-fluency-builder).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*