63
BU Score
Solid
639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood
✍️ bumetric analysis
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639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood is an iOS app from Diviniti Publishing Ltd in the Health & Fitness category, currently rated 4.7★ across 15 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 63: Solid (established niche player). For a Health & Fitness app, that means established niche player.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
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Reviews
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Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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 7 of 7 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| Mature app (14y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (15 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.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 173 MB🔞 17+📱 iOS 7.0+🔖 v1.2🔄 updated 11y ago🌐 EN📂 Health & Fitness💰 Paid🚀 Launched 2012 (14y old)
📝 About this app
Create emotional stability and harmonious relationships.
This is one of a series of six meditation recordings by Glenn Harrold and Ali Calderwood, which are based upon the ancient Solfeggio musical scale. Each note in this scale has specific healing properties and this recording uses the fourth note, which resonates to a frequency of 639 Hz.
This frequency works on connecting and harmonising relationships and deals with our perceptions of love.… View full description on the official store →
This is one of a series of six meditation recordings by Glenn Harrold and Ali Calderwood, which are based upon the ancient Solfeggio musical scale. Each note in this scale has specific healing properties and this recording uses the fourth note, which resonates to a frequency of 639 Hz.
This frequency works on connecting and harmonising relationships and deals with our perceptions of love.… View full description on the official store →
🆕 What's New · v1.2
This update from Apple will improve the functionality of this app. No new features are included.
Upgraded audio tracks and new PDF content.
Upgraded audio tracks and new PDF content.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood
- Developer
- Diviniti Publishing Ltd
- Bundle ID
- com.hypnosisaudio.639
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 17+
- Languages
- EN
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
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $19.6K/mo
- Top-grossing rank
- Outside top 100 in US Health & Fitness
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1648916522
⭐Recent App Store Reviews16 latest · avg 4.94★ · 93.8% 5★ · 0% 1★
5★15 (94%)
4★1 (6%)
3★0 (0%)
2★0 (0%)
1★0 (0%)
+0 ratings/week
Praise: love ×7 amazing ×4 best ×4 great ×3 recommend ×3
Top positive
★★★★★ excellent
Keep the volume low and I would NOT let children sleep to these. There are ones designed specifically for children. For me emotions are surfacing. I even pulled the headphones out in my sleep and felt anger. Obviously this is something I ne…
★★★★★ Love this app!
Wonderfully relaxing! Cant wait for the mext one to be released!!…
Top negative
★★★★☆ Please add auto-repeat feature
I have all of Glenn's solfeggio apps and love to fall asleep with them. The only thing the app needs is an auto-repeat feature, so I can keep it playing in the background.…
★★★★★ This one is great!
I highly recommend anything by Glenn Harrold. I have been regularly listening to his hypnosis/meditations for several years now. This is one of my favorites and truly helps me re-center and fall asleep at night. Thank you!!…
📈Ratings growth15 ratings+1400% lifetimeShow 3-year history estimate ▾
Tracked (18 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.
More by Diviniti Publishing Ltd
View all →
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$605/mo
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$445/mo
Relaxez et dormez bien, hypnose et méditation
$388/mo
417hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood
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396hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood
$1.4K/mo
Full revenue analysis
Read the article-style breakdown for 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.