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Storky - Contraction Timer

65
Quality Score
Solid

Storky - Contraction Timer

Medium confidence
4.8 ✍️ Editor
✍️ bumetric analysis

Storky - Contraction Timer is an iOS app from TappyTaps s.r.o. in the Health & Fitness category, currently rated 4.8★ across 1,744 ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.

Quality Score is 65: Solid (established niche player). For a Health & Fitness 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
$1.2M
per month
12-mo forecast
$1.3M – $2.0M
per month
24-mo forecast
$1.5M – $2.8M
per month
BIG tier
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📊 Performance Tracking LIVE

Loading…
idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
ONE-TIME · BUILD 💰 Estimated build cost
$70K
What it cost to build · not monthly revenue
Likely range $50K – $95K
$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
Health & Fitness complexity ×1.40 +$20K
Total estimate $70K
👥 Estimated audience size
120K
Lifetime downloads (US-equivalent)
Monthly active
26K
Daily active
9.1K

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
📲 Health & Fitness engagement ~70 installs / rating
🔁 Health & Fitness D30 retention 22%
📍 DAU / MAU stickiness 0.35
DAU / MAU 35% sticky
🔬

How we forecast this revenue

MEDIUM CONFIDENCE
Baseline
$1.2M/mo · ML-estimated from 234 triggers
Growth rate
+2.5% MoM · BIG tier baseline (compound monthly)
6 months
$1.2M – $1.6M
12 months
$1.3M – $2.0M
24 months
$1.5M – $2.8M
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 · 57/100BIG TIERcompetitive but cautious
RevenueQualityMarketGrowthMoatSafetyFounderMonetiz.
Revenue Strength
6.1
Product Quality
8.7
Market Position
2.0
Growth Velocity
5.0
Defensibility
7.0
Operational Safety
9.0
Founder Strength
7.1
Monetization Maturity
1.0
  • 💰 Revenue: Healthy — $480K - $2640K/mo · BIG tier · medium-low confidence, trajectory unclear.
  • ⭐ Quality: 4.85★ across 1,744 reviews — strong (top 10%).
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: last update 293d ago — slow cadence.
  • ⚠️ 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 = $21.6M-$38.4M.
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

MODEL
Revenue 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:
Excellent rating (4.8★)METRIC
+$2,200
Low install base (1,744 ratings)METRIC
+$1,500
Mature app (8y old)METRIC
+$1,500
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

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🆕 What's New · v2.5.2

What’s new in this version:
● overall user experience improved
● minor issues fixed
● general app improvements

Thank you for using Storky!

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Storky - Contraction Timer
Developer
TappyTaps s.r.o.
Bundle ID
com.tappytaps.storky
App Store URL
Open in App Store
Category
Health & Fitness
Content rating
12+
Languages
CS, NL, EN, FR, DE, ES, SV

Company

Website
Not found
Tagline
Today
Description
Find apps and games for iPhone, iPad, Mac, and more on the App Store.
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 Health & Fitness
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 growth1,744 ratings+62% lifetimeShow 3-year history estimate ▾Jul 2023Mar 2025Jul 2026
Tracked (3 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.
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

Storky is a reliable and easy to use contraction timer with no ads created by Bibino, a baby monitoring app. With the Storky app, you can easily monitor the length of your contractions and intervals between them. The app gives you the idea of when the baby is coming to the world, so you know when to consider going to the hospital or a birth center.

SMART CONTRACTION TIMER
Start measuring the contraction with just one tap of a button. Once the contraction is over, tap the button again to stop the timer, and Storky will begin measuring the time of the interval.

INFORMATION ON CONTRACTIONS… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →
💾 27 MB🔞 12+📱 iOS 12.0+🔖 v2.5.2🔄 updated 0d ago🌐 CS, NL, EN, FR, DE +2📂 Health & Fitness💰 Paid
🌍

Multi-Country Performance

Available in 9 of 9 monitored markets
MarketRatingReviewsCurrent version
🇺🇸 US4.84464★1,7964.84464★ this version
🇬🇧 GB4.80142★2824.80142★ this version
🇩🇪 DE4.78279★1,2204.78279★ this version
🇫🇷 FR4.83333★304.83333★ this version
🇯🇵 JP5★45★ this version
🇨🇦 CA4.8125★4644.8125★ this version
🇦🇺 AU4.86175★2174.86175★ this version
🇧🇷 BR5★55★ this version
🇮🇳 IN4.83333★64.83333★ this version
🔔

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📝 Description

95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Storky - Contraction Timer: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →

More by TappyTaps s.r.o.

View all →
📦 Portfolio summaryINDIE studio
13apps·$36K/mocombined
✓ Diversified — top app contributes 32%; risk spread across portfolio

Similar apps in Health & Fitness

About this analysis
ZCAnalyzed by Zakhar Chumak · founder, bumetric·Full methodology·Medium confidence

Why medium confidence: 1,744 ratings · no founder-verified revenue (model estimate only).

Frequently Asked Questions

4 answers · auto-generated from this app's public data
How much does Storky - Contraction Timer make per month?
Based on our ML-calibrated revenue forecast, Storky - Contraction Timer 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 Storky - Contraction Timer?
Browse the full Health & Fitness 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 Storky - Contraction Timer?
Storky - Contraction Timer is published by TappyTaps s.r.o. 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 Storky - Contraction Timer's BU Score?
Storky - Contraction Timer 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.