Grammatisch - Deutsch lernen
66
Quality Score
Solid
✍️ bumetric analysis
“
Grammatisch - Deutsch lernen is an iOS app from Konsonant Ensino Digital de Idiomas Ltda in the Education category, currently rated 4.7★ across 678 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 66: 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
$100K
↳ What it cost to build · not monthly revenue
Likely range $75K – $135K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~4.3y at current MRR
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 |
| 📦 Asset bundle (129 MB) | +$31K |
| ⚙ Education complexity ×1.20 | +$16K |
Total estimate
$100K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$30K
↳ What it would sell for · not monthly revenue
Marketplace range $25K – $40K · 17× MRR multiple
💸
~0.3× build cost (under-water)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Education category multiple | +6% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
17× MRR
👥 Estimated audience size
57K
Lifetime downloads (US-equivalent)
Monthly active
10K
Daily active
3.0K
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 / MAU
30% 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
Below median · 48/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
4.3
Product Quality
6.6
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
5.8
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.71★ across 678 reviews — solid.
- 📍 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: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 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 7 of 7 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.7★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Multilingual (12 languages)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (678 ratings)METRIC | +$400 |
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.
🆕 What's New · v4.1.18
• Bug fixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Grammatisch - Deutsch lernen
- Developer
- Konsonant Ensino Digital de Idiomas Ltda
- Bundle ID
- CI.GrammarApp
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- AR, EN, FR, DE, IT, PL, PT, RU, ES, TH, TR, UK
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $1.9K/mo
- Top-grossing rank
- Outside top 100 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
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
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- apps.apple.com/us/app/foxtale-self-he…
- About page
- apps.apple.com/us/iphone/story/id1896…
📈Ratings growth678 ratings+67700% lifetimeShow 3-year history estimate ▾
Tracked (35 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
🚀Update Frequency · Releases per Quarter3 releases tracked
🚀Version Release Timeline3 releases tracked
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.
📝 About this app
Learn German for real with Grammatisch. The app has thousands of exercises as well as summaries, tables and lists for the key topics of the German grammar. You don’t need to take leveling tests, just pick any topic and start learning it. You can solve dozens of exercises in a row to memorize concepts and grammar rules in a short time. When you finish an exercises session, you can check your score and a detailed correction of your answers.
The following topics are covered:
• Bestimmter Artikel
• Pluralform
• Personalpronomen
• Verbkonjugation - Präsens
• Possessivpronomen
• Reflexive Verben… View full description on the official store →
The following topics are covered:
• Bestimmter Artikel
• Pluralform
• Personalpronomen
• Verbkonjugation - Präsens
• Possessivpronomen
• Reflexive Verben… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 129 MB🔞 4+📱 iOS 18.0+🔖 v4.1.18🔄 updated 0d ago🌐 AR, EN, FR, DE, IT +7📂 Education💰 Paid
📅
What Worked™ · Development Pipeline
8 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-06
🔧
Shipped update — v3.8.1 → v4.1.11
→ 30 days after: reviews +15 medium · co-occurring
2026-05
🔄
Monetization changed: freemium → free
→ 30 days after: reviews +15 high confidence
2026-03
⭐
Rating ↑ 3.50 → 4.70 (improved 1.20★)
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2020-04
⭐
Rating ↓ 4.11 → 3.80 (dropped 0.31★)
→ 30 days after: rating −0.13★ high confidence
2020-04
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating −0.13★ high confidence
2017-11
⭐
Rating ↓ 5.00 → 4.00 (dropped 1.00★)
2017-04
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.55556★ | 54 | 4.55556★ this version |
| 🇧🇷 BR | 4.76779★ | 267 | 4.76779★ this version |
| 🇨🇦 CA | 4.56757★ | 37 | 4.56757★ this version |
| 🇩🇪 DE | 4.65496★ | 6,979 | 4.65496★ this version |
| 🇫🇷 FR | 4.38393★ | 112 | 4.38393★ this version |
| 🇬🇧 GB | 4.58553★ | 152 | 4.58553★ this version |
| 🇮🇳 IN | 4.5★ | 56 | 4.5★ this version |
| 🇯🇵 JP | 4.68421★ | 19 | 4.68421★ this version |
| 🇺🇸 US | 4.69559★ | 703 | 4.69559★ this version |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Grammatisch - Deutsch lernen: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Konsonant Ensino Digital de Idiomas Ltda
View all →📦 Portfolio summaryINDIE studio
2apps·$1K/mocombined
⚠ Concentrated — top app contributes 100% of combined revenue (single-app dependency)
About this analysis
Why medium confidence: 678 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Grammatisch - Deutsch lernen make per month?▴
Based on our ML-calibrated revenue forecast, Grammatisch - Deutsch lernen earns approximately $1.9K/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 Grammatisch - Deutsch lernen?▴
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 Grammatisch - Deutsch lernen?▴
Grammatisch - Deutsch lernen is published by Konsonant Ensino Digital de Idiomas Ltda on the Apple App 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 Grammatisch - Deutsch lernen's BU Score?▴
Grammatisch - Deutsch lernen has a BU Score of 66/100 (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.