Collins Gem Korean Dictionary
60
Quality Score
Solid
Collins Gem Korean Dictionary
Low confidence
✍️ bumetric analysis
“
Collins Gem Korean Dictionary is an Android app from MobiSystems in the Books & Reference category, currently rated 5.0★ across 91 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 Books & Reference 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
$90K
↳ What it cost to build · not monthly revenue
Likely range $70K – $120K
$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 |
| ⚙ Books & Reference complexity ×0.95 | $-2975 |
| 🌐 Cross-platform reach (iOS + Android) | +$31K |
Total estimate
$90K
🔬
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 · 53/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
7.7
Product Quality
4.0
Revenue Strength
3.7
Monetization Maturity
5.0
Defensibility
10.0
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 5.0★ across 91 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2248d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (2248d 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. Portfolio play ($169K/mo combined) commands premium.
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 (5.0★)METRIC | +$2,200 | |
| Mature app (15y old)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Pre-traction phase (91 ratings)METRIC | −$300 |
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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Collins Gem Korean Dictionary
- Developer
- MobiSystems
- Bundle ID
- com.mobisystems.msdict.embedded.wireless.collins.korean
- App Store URL
- Open in App Store
- Category
- Books & Reference
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.mobilingo.ai
- 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
- $258/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $3.99 - $7.99 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 growth91 ratings+20% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 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.
📝 About this app
<b>Collins Korean Gem Dictionary</b> offers learners extensive and up-to-date coverage of Korean and English in a compact, portable format.
This Korean dictionary is designed for all levels of language learner, whether at home, at school, or at work. It is the ideal text for anyone who needs a wealth of reliable information in a portable format.
Dictionary Features
• Collins Korean Gem Dictionary contains all the everyday words and phrases used in today's Korean and English that you will need to know.
• An easy-to-use and reliable dictionary.… View full description on the official store →
This Korean dictionary is designed for all levels of language learner, whether at home, at school, or at work. It is the ideal text for anyone who needs a wealth of reliable information in a portable format.
Dictionary Features
• Collins Korean Gem Dictionary contains all the everyday words and phrases used in today's Korean and English that you will need to know.
• An easy-to-use and reliable dictionary.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v11.3.576🔄 updated 0d ago📂 Books & Reference💰 Free📺 Ad-supported💎 IAP $3.99 - $7.99 per item
🧪
Tech & Domain Intel — mobilingo.ai
- Tech stack
- Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
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📝 Description
95
BU Score · Transcendent
More by MobiSystems
View all →📦 Portfolio summaryMID studio
236apps·$169K/mocombined
✓ Diversified — top app contributes 16%; risk spread across portfolio
About this analysis
Why low confidence: only 91 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Collins Gem Korean Dictionary make per month?▴
Based on our ML-calibrated revenue forecast, Collins Gem Korean Dictionary earns approximately $258/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 Collins Gem Korean Dictionary?▴
Browse the full Books & Reference 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 Collins Gem Korean Dictionary?▴
Collins Gem Korean Dictionary is published by MobiSystems 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 Collins Gem Korean Dictionary's BU Score?▴
Collins Gem Korean Dictionary 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.