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69
BU Score
Solid

Orthographe Projet Voltaire

4.4 ✍️ Editor
✍️ BU Analytics Review

Orthographe Projet Voltaire is an Android app from Woonoz in the Education category, currently rated 4.4★ across 13,175 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 69Solid (established niche player). For a Education app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

creator

📊 Performance Tracking LIVE

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Rating
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💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (13,175 ratings)METRIC
+$5,500
Good rating (4.4★)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v10.0.3🔄 updated 3y ago📂 Education💰 Free

📝 About this app

Angry with spelling or passionate about the French language? Like you, 7 million people have already chosen the Voltaire Project, the No. 1 spelling refresher, used by 4,000 schools and 1,200 companies. From 8 to 99 years old, whatever your level, this fun and terribly effective app will surely reconcile you with spelling.

Progress is lasting and guaranteed thanks to its ultra-personalized training and refresher method, the only one that adapts in real time to your shortcomings and your memorization pace. This method is based on the Ancrage Mémoriel® engine and its effectiveness has been scientifically proven.

Click on the mistake, square of choice, sound exercises... the Voltaire Project offers simulation exercises that allow you to detect mistakes, but also to write a word correctly with the correct spelling, the correct agreement, the correct conjugation . Progress from level to level and master the essential rules to be comfortable in any situation. Access your learning statistics at any time and discover your progress!

Once your training is over, why not take the Voltaire Certificate? An asset on your CV to make a difference with recruiters and testify to your competence. With 1,800 approved examination centers, do not deprive yourself of this certification already passed by 200,000 people!

01Net: "Project Voltaire is the best tool for those who wish to make serious progress in spelling" (August 2019)
TF1: "A large-scale application that reconciles the French with spelling" (Journal de 20 heures, May 2, 2019)
M6: "The Voltaire Project is a huge success, with 5 million users" (Le 19.45, 22 mars 2019)
France Inter: “The Voltaire Project, an app to fill spelling gaps” (March 4, 2019)

Elected "best e-learning service in Europe across all disciplines" by EFFEP (European foundation for e-learning projects).
Richelieu Senghor Prize for his exceptional contribution to the influence of the French language in the world.

General conditions of use: https://www.projet-voltaire.fr/mentions-legales/

Twitter: https://twitter.com/Projet_Voltaire
Facebook: https://www.facebook.com/Projet.Voltaire/

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Orthographe Projet Voltaire
Developer
Woonoz
Bundle ID
com.projet.voltaire
App Store URL
Open in App Store
Category
Education
Content rating
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Languages
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Company

Website
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Tagline
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Description
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Founded
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HQ / Address
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Employees
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Logo
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Revenue

Verified revenue / mo
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AI revenue estimate / mo
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AI annual estimate
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ML model estimate / mo
$1.1K/mo
Top-grossing rank
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All-time revenue
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Pricing
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Founder

Name
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X / Twitter
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LinkedIn
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GitHub
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Public statements
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Funding

Total raised
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Last round
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Investors
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Crunchbase
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AngelList
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Press & Links

Articles found
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Listed on
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Blog
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Press / News
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Contacts & Socials

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Email
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Phone
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Contact page
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About page
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Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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