Rain Sounds HQ: sleep aid
75
Quality Score
Strong
Rain Sounds HQ: sleep aid
High confidence
✍️ bumetric analysis
“
Rain Sounds HQ: sleep aid is an iOS app from Phase4 Mobile in the Medical category, currently rated 4.8★ across 27,182 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 75: Strong (healthy traction). For a Medical 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
$95K
↳ What it cost to build · not monthly revenue
Likely range $70K – $130K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~10 months at current MRR
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 (75 MB) | +$10K |
| ⚙ Medical complexity ×1.55 | +$33K |
Total estimate
$95K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$200K
↳ What it would sell for · not monthly revenue
Marketplace range $150K – $250K · 19× MRR multiple
💸
~2.1× return on build cost
Synthetic estimate. Multiple band derived from ad-supported + 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
| 📺 Ad-supported base | 15× MRR |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Medical category multiple | +12% |
Final multiple
19× MRR
👥 Estimated audience size
1.4M
Lifetime downloads (US-equivalent)
Monthly active
360K
Daily active
72K
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
| 📲 Medical engagement | ~55 installs / rating |
| 🔁 Medical D30 retention | 25% |
| 📍 DAU / MAU stickiness | 0.20 |
DAU / MAU
20% sticky
🔬
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 · 57/100BIG TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
6.6
Product Quality
9.6
Revenue Strength
5.8
Monetization Maturity
1.0
Defensibility
6.0
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
- ⭐ Quality: 4.78★ across 27,182 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: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 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 10 of 10 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (27,182 ratings)METRIC | +$5,500 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (11y old)METRIC | +$1,500 | |
| Multilingual (11 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| 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.
🆕 What's New · v4.7
• Bug fixes and performance improvements.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Rain Sounds HQ: sleep aid
- Developer
- Phase4 Mobile
- Bundle ID
- com.phase4mobile.rainsoundshq
- App Store URL
- Open in App Store
- Category
- Medical
- Content rating
- 4+
- Languages
- NL, EN, FR, DE, IT, JA, PT, RU, ZH, ES, SV
Company
- Website
- www.phase4mobile.com
- 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
- $9.8K/mo
- Top-grossing rank
- Outside top 100 in US Medical
- 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 growth27,182 ratingsShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (36 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
Can’t sleep? Fall asleep fast to over 300 high-quality full-stereo recordings from around the world. Sleep deeply every night, and wake up feeling fresh and energized.
Create your own personalized mixes for sleep, relaxation, travel, study, naps or mediation, blending up to 6 sounds at a time. Set a timer to gently fade out after you’ve fallen asleep.
Join millions of people who have downloaded Rain Sounds HQ to sleep deeply every night.
Explore your own beautiful library of high-resolution natural sounds, individually selected for their quality.… View full description on the official store →
Create your own personalized mixes for sleep, relaxation, travel, study, naps or mediation, blending up to 6 sounds at a time. Set a timer to gently fade out after you’ve fallen asleep.
Join millions of people who have downloaded Rain Sounds HQ to sleep deeply every night.
Explore your own beautiful library of high-resolution natural sounds, individually selected for their quality.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 75 MB🔞 4+📱 iOS 15.0+🔖 v4.7🔄 updated 0d ago🌐 NL, EN, FR, DE, IT +6📂 Medical💰 Paid
📅
What Worked™ · Development Pipeline
10 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-05
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2020-08
📈
Crossed 100 ratings — social-proof flywheel kicking in
2020-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2019-10
⭐
Rating ↓ 4.64 → 4.33 (dropped 0.31★)
2019-09
📈
Crossed 10 ratings — social-proof flywheel kicking in
2019-09
⭐
Rating ↑ 3.67 → 4.00 (improved 0.33★)
2019-08
⭐
Rating ↓ 5.00 → 3.67 (dropped 1.33★)
2019-08
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.72499★ | 1,200 | 4.72499★ this version |
| 🇧🇷 BR | 4.81924★ | 2,495 | 4.81924★ this version |
| 🇨🇦 CA | 4.71586★ | 1,362 | 4.71586★ this version |
| 🇩🇪 DE | 4.6589★ | 472 | 4.6589★ this version |
| 🇫🇷 FR | 4.6875★ | 1,072 | 4.6875★ this version |
| 🇬🇧 GB | 4.68871★ | 1,346 | 4.68871★ this version |
| 🇮🇳 IN | 4.69048★ | 42 | 4.69048★ this version |
| 🇯🇵 JP | 4.64121★ | 1,349 | 4.64121★ this version |
| 🇺🇸 US | 4.78071★ | 27,265 | 4.78071★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Rain Sounds HQ: sleep aid: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Phase4 Mobile
View all →📦 Portfolio summaryINDIE studio
5apps·$71K/mocombined
✓ Diversified — top app contributes 29%; risk spread across portfolio
About this analysis
Why high confidence: 27,182 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Rain Sounds HQ make per month?▴
Based on our ML-calibrated revenue forecast, Rain Sounds HQ earns approximately $9.8K/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 Rain Sounds HQ?▴
Browse the full Medical 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 Rain Sounds HQ?▴
Rain Sounds HQ is published by Phase4 Mobile 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 Rain Sounds HQ's BU Score?▴
Rain Sounds HQ has a BU Score of 75/100 (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.