古典文法 Q&A
0
Quality Score
Niche
✍️ GetAppValue analysis
“
古典文法 Q&A is an Android app from Petko Slavov, Yanko Popov in the Educational category, currently rated — across few ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 0: Niche (micro-niche or pre-traction stage). For a Educational app, that means micro-niche or pre-traction stage. 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 |
| ⚙ Educational complexity ×1.20 | +$11K |
| 🌐 Cross-platform reach (iOS + Android) | +$39K |
Total estimate
$110K
🔬
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)
Direction
Headwinds: rating drift may slow acquisition
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 · 43/100MID TIERunderperforming peersRevenue Strength
3.7
Product Quality
0.0
Market Position
0.0
Growth Velocity
5.0
Defensibility
9.9
Operational Safety
7.0
Founder Strength
4.5
Monetization Maturity
4.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: None★ across 0 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 1120d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (1120d since update).
🎯 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.
📈 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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- 古典文法 Q&A
- Developer
- Petko Slavov, Yanko Popov
- Bundle ID
- com.me.popov.yanko.KOTENBUNPOqaNEW
- App Store URL
- Open in App Store
- Category
- Educational
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- team-okina.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $153/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $1.99 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.
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
古文王国を取り戻す壮大な冒険が始まる！竜王の仲間になって、楽しく単語・活用・敬語などを学ぼう！700問以上の問題を解きながら、センター試験や高校・大学受験に欠かせない重要な単語や文法を習得！
『古典文法Q&A』が新しくなりました！Q&A、つまり「Quest & Adventure」の形式で、700問以上の問題を解きながら、センター試験や高校・大学受験で頻出する単語や文法を学習できます。
古文王国の守護神である竜王は、魔法の秘巻を盗まれてしまい、王国は魔物に支配されてしまいました。竜王の代わりに魔物と戦い、動詞国・形容詞国・助詞国・助動詞国・敬語国・単語国の秘巻を取り戻して下さい。魔物と戦いながら古文のそれぞれの分野をマスターし、古文王国に再び秩序と平和をもたらしましょう！
【特徴】
◼ 楽しく古文を学習できます！
アドベンチャーゲーム形式で、遊びながら動詞・形容詞・助詞・助動詞・敬語・単語を効率的に覚えることができます。
◼ クイック・テストができます！
動詞・形容詞・助詞・助動詞・敬語・単語、それぞれの分野だけのテストもできます。テストの問題数と分野を選択し、スキマ時間に気軽に古文の問題に挑戦できます。
◼ 知識カルタの閲覧ができます！… View full description on the official store →
『古典文法Q&A』が新しくなりました！Q&A、つまり「Quest & Adventure」の形式で、700問以上の問題を解きながら、センター試験や高校・大学受験で頻出する単語や文法を学習できます。
古文王国の守護神である竜王は、魔法の秘巻を盗まれてしまい、王国は魔物に支配されてしまいました。竜王の代わりに魔物と戦い、動詞国・形容詞国・助詞国・助動詞国・敬語国・単語国の秘巻を取り戻して下さい。魔物と戦いながら古文のそれぞれの分野をマスターし、古文王国に再び秩序と平和をもたらしましょう！
【特徴】
◼ 楽しく古文を学習できます！
アドベンチャーゲーム形式で、遊びながら動詞・形容詞・助詞・助動詞・敬語・単語を効率的に覚えることができます。
◼ クイック・テストができます！
動詞・形容詞・助詞・助動詞・敬語・単語、それぞれの分野だけのテストもできます。テストの問題数と分野を選択し、スキマ時間に気軽に古文の問題に挑戦できます。
◼ 知識カルタの閲覧ができます！… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.5🔄 updated 0d ago📂 Educational💰 Free💎 IAP $0.99 - $1.99 per item
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📝 Description
95
BU Score · Transcendent
More by Petko Slavov, Yanko Popov
View all →📦 Portfolio summary
6apps
About this analysis
Why low confidence: only 0 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
古典文法 Q&A is a very early-stage Android app in the educational space with weak public traction — only 0 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
3 answers · auto-generated from this app's public dataHow much does 古典文法 Q&A make per month?▴
Low-confidence model estimate. 古典文法 Q&A has only 0 App Store ratings, so our revenue model has very little signal to work with — treat the ~$153/mo figure as directional only, not a verified MRR. No founder-verified revenue data is available for this app. See methodology for the formula and confidence bands.
What apps are like 古典文法 Q&A?▴
Browse the full Educational 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 古典文法 Q&A?▴
古典文法 Q&A is published by Petko Slavov, Yanko Popov 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.