78
Quality Score
Strong
Age Calculator: Date of Birth
High confidence
✍️ bumetric analysis
“
Age Calculator: Date of Birth is an Android app from Happy-verse in the Tools category, currently rated 4.7★ across 173,899 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 78: Strong (healthy traction). For a Tools app, that means healthy traction. 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
$700K
per month
→
12-mo forecast
$741K – $1141K
per month
→
24-mo forecast
$886K – $1645K
per month
BIG 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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$125K
↳ What it cost to build · not monthly revenue
Likely range $95K – $170K
$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 |
| ⚙Tools complexity ×0.90 | $-5949 |
| 🌐Cross-platform reach (iOS + Android) | +$29K |
| ⚙7.2y maintenance × ~1-person team | +$43K |
Total estimate$125K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$50K
↳ What it would sell for · not monthly revenue
Marketplace range $45K – $75K · 37× MRR multiple
💸~0.4× 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 |
| 📅7.2y proven track record | +20% |
| ⭐★ rating ≥ 4.7 (premium) | +15% |
| 🏷Tools category multiple | -8% |
| ⭐Mature user base (100K+ ratings) | +5% |
Final multiple37× MRR
👥 Estimated audience size
23.0M
Lifetime downloads (US-equivalent)
Monthly active
3.5M
Daily active
620K
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
| 📲Tools engagement | ~190 installs / rating |
| 📅7.2y of rating accumulation | -30% |
| 🔁Tools D30 retention | 22% |
| 📍DAU / MAU stickiness | 0.18 |
DAU / MAU18% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
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 | Tools |
| 📦Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Slowing
30%
Last shipped 2025-12-23 · 152 days ago
0 · Active50 · At risk100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅5 months since last update | Slowing cadence |
VerdictSlowing
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$700K/mo · ML-estimated from 234 triggers
Growth rate
+2.5% MoM · BIG tier baseline (compound monthly)
6 months
$690K – $933K
12 months
$741K – $1.1M
24 months
$886K – $1.6M
Compound growth at +2.5% MoM (tier baseline for BIG). Range widens with horizon — typical noise band ±15% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Mixed signals · 64/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
6.5
Product Quality
9.4
Revenue Strength
5.8
Monetization Maturity
5.0
Defensibility
9.3
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.71★ across 173,899 reviews — exceptional (top 1% in category).
- 📍 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: Strong subscription moat. Hard to outcompete on retention. Better angle: free alternative with one-time purchase, or feature parity for an underserved sub-niche.
💵 For acquirers: Estimated asking range 18-32× monthly = $12.6M-$22.4M.
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:
| High install base (173,899 ratings)METRIC | +$12,000 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| Established app (7y 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.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v2.7🔄 updated 5mo ago📂 Tools💰 Free📺 Ad-supported💎 IAP $4.00 - $19.00 per item🚀 Launched 2019 (7y old)
📝 About this app
People often ask "how old are you?" and it takes us some amount of mental calculation to reach out to the definite answer. This age app helps in calculating the exact age. All you have to do is enter the accurate date of birth and the result will depict the exact age, next birthday. Also there is special segment in the result category which will depict the exact seconds, minutes, hours, days, weeks, months, years you have lived till now.… View full description on the official store →
🧪
Tech & Domain Intel — fundeasy.in
- Mail provider
- Google Workspace
- Tech stack
- Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Age Calculator: Date of Birth
- Developer
- Happy-verse
- Bundle ID
- com.happyverse.agecalculator
- App Store URL
- Open in App Store
- Category
- Tools
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- fundeasy.in
- 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
- $1.6K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $4.00 - $19.00 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 growth173,899 ratings+70% 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.
More by Happy-verse
View all →📦 Portfolio summaryINDIE studio
7apps·$8K/mocombined
✓ Diversified — top app contributes 42%; risk spread across portfolio
Full revenue analysis
Read the article-style breakdown for Age Calculator: Date of Birth: 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: 173,899 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Age Calculator make per month?▴
Based on our ML-calibrated revenue forecast, Age Calculator earns approximately $1.6K/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.
Is Age Calculator profitable?▴
With estimated build cost $125K and monthly revenue $1.6K, Age Calculator looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Age Calculator have?▴
Estimated audience: ~23.0M lifetime downloads, ~3.5M monthly active users, and ~620K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like Age Calculator?▴
Browse the full Tools 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.
What is Age Calculator built with?▴
Our heuristic places Age Calculator on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Age Calculator still actively maintained?▴
Maintenance status: Slowing (30% abandonment risk). Last shipped version was 5 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Age Calculator sell for?▴
Estimated acquisition value: $50K (marketplace range $45K – $75K). Calculated as 37× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was Age Calculator last updated?▴
Age Calculator last shipped a new version on 2025-12-23 — 5 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Age Calculator?▴
Age Calculator is published by Happy-verse 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 Age Calculator's BU Score?▴
Age Calculator has a BU Score of 78/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.