Orthographe : cours et quiz
60
Quality Score
Solid
Orthographe : cours et quiz
Medium confidence
✍️ bumetric analysis
“
Orthographe : cours et quiz is an Android app from digiSchool Group in the Education category, currently rated 4.5★ across 1,212 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 60: Solid (established niche player). For a Education app, that means established niche player. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$110K
↳ What it cost to build · not monthly revenue
Likely range $80K – $150K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Slow ROI — current MRR is well below build cost
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱MVP baseline (design + 1-store ship) | +$28K |
| 📱5 unique screens × $4.5K | +$22K |
| 💎In-app purchase plumbing | +$9K |
| ⚙Education complexity ×1.20 | +$11K |
| 🌐Cross-platform reach (iOS + Android) | +$39K |
Total estimate$110K
👥 Estimated audience size
100K
Lifetime downloads (US-equivalent)
Monthly active
18K
Daily active
5.4K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲Education engagement | ~85 installs / rating |
| 🔁Education D30 retention | 18% |
| 📍DAU / MAU stickiness | 0.30 |
DAU / MAU30% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Building · 57/100MID TIERcompetitive build-outGrowth Velocity
5.0
Founder Strength
6.2
Product Quality
8.1
Revenue Strength
3.7
Monetization Maturity
4.0
Defensibility
9.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.5★ across 1,212 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Strong subscription moat. Hard to outcompete on retention. Better angle: free alternative with one-time purchase, or feature parity for an underserved sub-niche.
💵 For acquirers: Estimated asking range 18-32× monthly = $90K-$160K.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
Range:
💰 Forecast Revenue / mo
MODELRevenue 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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.5★)METRIC | +$2,200 | |
| Low install base (1,212 ratings)METRIC | +$1,500 | |
| Established app (5y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.1.1+58🔄 updated 0d ago📂 Education💰 Free💎 IAP $3.49 - $99.99 per item
📝 About this app
Improve your French spelling with superOrthographe!
Numerous courses and quizzes on essential spelling concepts, French grammar, vocabulary and punctuation!
Produced with Aurore Ponsonnet, spelling trainer and validated by the Voltaire Project expert committee, this is the ultimate French learning app. The contents in spelling, grammar or conjugation are designed for all levels.
French grammar: all you need to know about natures, functions, clauses, generalities on grammar ...… View full description on the official store →
Numerous courses and quizzes on essential spelling concepts, French grammar, vocabulary and punctuation!
Produced with Aurore Ponsonnet, spelling trainer and validated by the Voltaire Project expert committee, this is the ultimate French learning app. The contents in spelling, grammar or conjugation are designed for all levels.
French grammar: all you need to know about natures, functions, clauses, generalities on grammar ...… View full description on the official store →
🧪
Tech & Domain Intel — digischool.fr
- Mail provider
- Google Workspace
- Tech stack
- Brevo (formerly Sendinblue) · Meta (Facebook) Ads · Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Orthographe : cours et quiz
- Developer
- digiSchool Group
- Bundle ID
- com.digischool.superorthographe
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.digischool.fr
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $363/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $3.49 - $99.99 per item
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
📈Ratings growth1,212 ratings+80% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
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.
📝 Description
95
BU Score · Transcendent
More by digiSchool Group
View all →📦 Portfolio summaryINDIE studio
9apps·$4K/mocombined
✓ Diversified — top app contributes 29%; risk spread across portfolio
Full revenue analysis
Read the article-style breakdown for Orthographe : cours et quiz: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 1,212 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Orthographe make per month?▴
Based on our ML-calibrated revenue forecast, Orthographe earns approximately $363/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
What apps are like Orthographe?▴
Browse the full Education category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
Who makes Orthographe?▴
Orthographe is published by digiSchool Group on the Google Play Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is Orthographe's BU Score?▴
Orthographe has a BU Score of 60/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.