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639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood

Glenn Harrold Publishing Ltd
App Store·Health & FitnessPaid $3.99★ 4.73 (15)launched 14.2y agoapp updated 11.5y ago
Scout Score
13

639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood generates an estimated $20–$90/month in revenue from 8–40 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-06-18).

Estimates updated 18.06.2026 · How we estimate · Ranges reflect model confidence, not exact figures.
Est. revenue / month$20–$90
Est. downloads / month8–40
Estimate confidencemedium
PricingPaid $3.99
Rating4.73 ★ (15 ratings)
CategoryHealth & Fitness
Released28.03.2012
App last updated20.12.2014
PlatformiOS
Est. downloads / mo
8–40
Est. revenue / mo
$20–$90
Rating velocity / day
0
Chart velocity
—
Peak rank
—
Days tracked
—

Modeled monthly estimate · rating velocity · medium confidence

About

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 re…

View on the App Store →

Trends & analysis

Chart rank trend

US · overall
Collecting rank history — no snapshots so far. Fills in twice daily.

Why it's surfacing

Scout 13
Newness
3
Breakout
1

Ratings & velocity

Total ratings
15
Jun 13
New ratings / day
Collecting history — no snapshots so far. Fills in twice daily.

Rating distribution

93% positive · 15 ratings
5★
93%
4★
0%
3★
0%
2★
0%
1★
7%

Geographic reach

best rank · 0 storefronts
Collecting storefront coverage — no snapshots so far. Fills in twice daily.

Revenue & downloads trend

ARPU $3
Est. revenue / mo · $45
$45$0
Jun 5Jun 18
Est. downloads / mo · 16
161
Jun 5Jun 18

Update history

1 update tracked
  • v1.211.5y ago

    This update from Apple will improve the functionality of this app. No new features are included. Upgraded audio tracks and new PDF content.

639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood — FAQ

How much money does 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood make?

According to AppCurrents estimates, 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood generates approximately $20–$90 per month (medium confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.

How many downloads does 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood get?

639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood sees an estimated 8–40 downloads per month on the App Store, per AppCurrents modeling.

Is 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood free?

639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood is a paid app priced at $3.99 on the App Store.

What is 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood's rating?

639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood holds a 4.73-star average from 15 ratings on the App Store.

When was 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood released?

639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood launched on the App Store on 28.03.2012. Its latest version shipped 20.12.2014.

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