Vocabulary Builder by Atlas
68
Quality Score
Solid
Vocabulary Builder by Atlas
High confidence
✍️ bumetric analysis
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Vocabulary Builder by Atlas is an iOS app from SAYAN YAZILIM TEKNOLOJI ANONIM SIRKETI in the Education category, currently rated 4.8★ across 11,886 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 68: 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 |
| 📦 Asset bundle (210 MB) | +$40K |
| ⚙ Education complexity ×1.20 | +$18K |
Total estimate
$110K
👥 Estimated audience size
1.0M
Lifetime downloads (US-equivalent)
Monthly active
180K
Daily active
54K
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 · 47/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
2.9
Product Quality
9.5
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
3.8
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.77★ across 11,886 reviews — exceptional (top 1% in category).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ 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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (11,886 ratings)METRIC | +$5,500 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Established app (7y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Localized (7 languages)METRIC | +$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.
🆕 What's New · v7.10
Keep improving your English with Atlas!
We've improved the word-adding flow to make saving words to your Journal faster and more intuitive.
You can now see a translation for each meaning before you save, so it's easier to pick the right one with confidence.… Full release notes →
We've improved the word-adding flow to make saving words to your Journal faster and more intuitive.
You can now see a translation for each meaning before you save, so it's easier to pick the right one with confidence.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Vocabulary Builder by Atlas
- Developer
- SAYAN YAZILIM TEKNOLOJI ANONIM SIRKETI
- Bundle ID
- com.gocas.byroon
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 4+
- Languages
- EN, DE, JA, KO, PT, ES, TR
Company
- Website
- Not found
- Tagline
- Atlas | Improve Vocabulary
- Description
- Learn new English words, study for IELTS and TOEFL exams. Expand your knowledge of vocabulary. Atlas provides English vocabulary in context along with their pronunciation and synonyms. You can do several game-like exercises to learn words better
- 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
- $86/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
Contacts & Socials data not yet collected for this app.
📈Ratings growth11,886 ratings+65% lifetimeShow 3-year history estimate ▾
Tracked (4 weeks) Pre-tracking estimate (37 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.
🚀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
Atlas Vocabulary Builder is an app designed to help you grow your vocabulary, no matter what your proficiency level is.
Created by language-learning experts and trusted by thousands of learners, Atlas offers a personalized, science-based path to mastering English vocabulary and building a library of thousands of new words, phrases, idioms, and expressions.
WHO ATLAS IS FOR
Atlas is perfect for learners who want a smarter, structured, and personalized way to grow their English vocabulary.
It’s ideal for:… View full description on the official store →
Created by language-learning experts and trusted by thousands of learners, Atlas offers a personalized, science-based path to mastering English vocabulary and building a library of thousands of new words, phrases, idioms, and expressions.
WHO ATLAS IS FOR
Atlas is perfect for learners who want a smarter, structured, and personalized way to grow their English vocabulary.
It’s ideal for:… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 210 MB🔞 4+📱 iOS 16.0+🔖 v7.10🔄 updated 0d ago🌐 EN, DE, JA, KO, PT +2📂 Education💰 Paid
🔎
ASO Keyword Positions
BEST RANK #4Ranked for 1 App Store search query in our last keyword sweep. Lower position = closer to the top.
vocabulary builder·#4🇺🇸
Last sweep: 2026-05-19 · iTunes Search API
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.75202★ | 742 | 4.75202★ this version |
| 🇧🇷 BR | 4.83117★ | 154 | 4.83117★ this version |
| 🇨🇦 CA | 4.72074★ | 863 | 4.72074★ this version |
| 🇩🇪 DE | 4.6338★ | 284 | 4.6338★ this version |
| 🇫🇷 FR | 4.61538★ | 234 | 4.61538★ this version |
| 🇬🇧 GB | 4.73549★ | 2,291 | 4.73549★ this version |
| 🇮🇳 IN | 4.70195★ | 718 | 4.70195★ this version |
| 🇯🇵 JP | 4.5102★ | 539 | 4.5102★ this version |
| 🇺🇸 US | 4.76735★ | 12,074 | 4.76735★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Vocabulary Builder by Atlas: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why high confidence: 11,886 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Vocabulary Builder by Atlas make per month?▴
Based on our ML-calibrated revenue forecast, Vocabulary Builder by Atlas earns approximately $86/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 Vocabulary Builder by Atlas?▴
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 Vocabulary Builder by Atlas?▴
Vocabulary Builder by Atlas is published by SAYAN YAZILIM TEKNOLOJI ANONIM SIRKETI 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 Vocabulary Builder by Atlas's BU Score?▴
Vocabulary Builder by Atlas has a BU Score of 68/100 (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.