Colorful World
65
Quality Score
Solid
Colorful World
Medium confidence
✍️ bumetric analysis
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Colorful World is an Android app from April 21 Studio in the Casual category, currently rated 4.6★ across 7,451 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 65: Solid (established niche player). For a Casual 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
$140K
↳ What it cost to build · not monthly revenue
Likely range $105K – $190K
$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 |
| ⚙ Casual complexity ×1.50 | +$29K |
| 🌐 Cross-platform reach (iOS + Android) | +$49K |
Total estimate
$140K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$20K
↳ What it would sell for · not monthly revenue
Marketplace range $15K – $30K · 24× MRR multiple
💸
~0.1× build cost (under-water)
Synthetic estimate. Multiple band derived from iap / freemium model + 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
| 💎 IAP / freemium model base | 28× MRR |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Casual category multiple | -22% |
Final multiple
24× MRR
👥 Estimated audience size
1.6M
Lifetime downloads (US-equivalent)
Monthly active
96K
Daily active
33K
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
| 📲 Casual engagement | ~220 installs / rating |
| 🔁 Casual D30 retention | 6% |
| 📍 DAU / MAU stickiness | 0.35 |
DAU / MAU
35% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
Medium confidence · 55%
Also possible
Flutter
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 🏷 Category context | Casual |
| 📦 Tiny game bundle | → Native 2D engine |
🔬
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 · 49/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
6.2
Product Quality
7.9
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
5.0
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.4★ across 6,235 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: 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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.6★)METRIC | +$2,200 | |
| Low install base (7,451 ratings)METRIC | +$1,500 | |
| Established app (6y 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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Colorful World
- Developer
- April 21 Studio
- Bundle ID
- com.wawagame.app.colorfulworld
- App Store URL
- Open in App Store
- Category
- Casual
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- april-21.github.io
- 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
- $941/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $1.99 - $14.99 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 growth7,451 ratings+40% 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.
📝 About this app
Color your world with numbers and build it with your fingertips! With just a simple touch, the world of simple numbers becomes colorful in your hands.
What is your occupation? Students, doctors, scientists, freelancers? It does not matter! In this relaxing world, you will become the greatest artist and ... designer! Oh, if you have a child, or if you are about to, don't forget to bring him to explore the world you have built, and see how he draws a new world with his dexterous little hand!
Game Features… View full description on the official store →
What is your occupation? Students, doctors, scientists, freelancers? It does not matter! In this relaxing world, you will become the greatest artist and ... designer! Oh, if you have a child, or if you are about to, don't forget to bring him to explore the world you have built, and see how he draws a new world with his dexterous little hand!
Game Features… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.1.3🔄 updated 0d ago📂 Casual💰 Free📺 Ad-supported💎 IAP $1.99 - $14.99 per item
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Colorful World: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by April 21 Studio
View all →📦 Portfolio summaryINDIE studio
11apps·$4K/mocombined
✓ Diversified — top app contributes 33%; risk spread across portfolio
Similar apps in Casual
About this analysis
Why medium confidence: 7,451 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Colorful World make per month?▴
Based on our ML-calibrated revenue forecast, Colorful World earns approximately $940/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 Colorful World?▴
Browse the full Casual 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 Colorful World?▴
Colorful World is published by April 21 Studio 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 Colorful World's BU Score?▴
Colorful World has a BU Score of 65/100 (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.