# 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood > Solfeggio meditation app for emotional stability and relationship harmony. (iPhone/iPad app by Glenn Harrold Publishing Ltd.) - Source: https://appshunter.io/ios/app/639hz-solfeggio-sonic-meditation-by-glenn-harrold-and-ali-calderwood/id512394586 (this page in markdown: same URL + `.md`) - Developer: [Glenn Harrold Publishing Ltd](https://appshunter.io/developer/1893582430) - Category: Health & Fitness - Price: $3.99 - Rating: 4.70/5 from 15 App Store ratings · 24 written reviews indexed - Age rating: 17+ - Requires: iOS 7.0 · 173 MB - Languages: American English - Released: 2012-03-28 - Data updated: 2026-08-27 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/639hz-solfeggio-sonic-meditation-by-glenn-harrold-and-ali-calderwood/id512394586/reviews.md ## What is 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood? 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. It can help you to change the way in which you interact with the world so that you bring more harmony and balance in your life and can help with issues around self-love and acceptance, loneliness and emotional stability. This recording contains two tracks, the first you can use in the daytime as it will guide you back to full waking consciousness at the end. The second track will guide you into a deep sleep state at the end, which makes it ideal for using before you go to sleep at night. When you are instructed to repeat affirmations, connect with positive feelings (e.g. happiness, joy, love), this will help you absorb the suggestions on a deeper level. You don’t have to repeat the affirmations out loud but do make a strong connection with them. This App includes: 639 Hz Solfeggio Sonic Meditation Audio Track 1 – 36:11 (awake version) 639 Hz Solfeggio Sonic Meditation Audio Track 2 – 42:11 (sleep version) FA 639 Hz Solfeggio Music Only Audio Track – 11:52 Solfeggio Chart Glenn Harrold's Self-Hypnosis e-Book. About the Ancient Solfeggio Scale and Healing Sounds e-Book How To Use This App e-Book About The Authors e-Book ## Key features - 639 Hz Solfeggio meditation audio - Daytime and sleep-focused tracks - Solfeggio music only track - Includes e-books on Solfeggio and app usage - Guided affirmations for positive connection ## Recent user reviews (10 of 24) All indexed reviews: https://appshunter.io/ios/app/639hz-solfeggio-sonic-meditation-by-glenn-harrold-and-ali-calderwood/id512394586/reviews.md ### 1/5 — Disappointing *2024-10-14* Hoping to hear the simple frequency without all of the noise. This has noise that interferes with the frequency. Water and singing. I can deal with the water. But the singing does not sound good at all. It grates on my nerves causing stress and frustration. Waste of money, this app is. **Developer response:** Sorry the app wasn't for you. If we can help with anything please feel free to contact us directly at sales@hypnosisaudio.com. Best regards Diviniti ### 3/5 — Speeches *2020-01-05, version 1.2* On my side sleeping audio should not contain speeches ### 5/5 — This one is great! *2019-12-08* 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!! ### 5/5 — This app is must to get! *2019-03-12* I'm in my sixties and have tried a lot of relaxation apps. Glenn has the most relaxing voice ever. This one has great vibrations that take me to another world. I have all the Solfeggio Scale apps of Glenn's. Great job Glenn! ### 5/5 — Thank you! *2016-11-12* Great app, it brings out feelings that I haven't felt in a long time. I love that I can fall asleep every time and feel lighter each time. So thank you; thank you for guiding me into this unsuspecting inner me. Looking forward to some of your other apps:) ### 5/5 — So grateful *2016-07-03* Glenn Harrold has really made a difference with all of his hypnosis apps I've used. I rarely sleep without playing one. I am sensitive to tone and sound, and his skillful mix of hypnosis and hertz therapy really helps me calm down at night. ### 5/5 — Debra *2015-04-11, version 1.2* This app is wonderful , so easy to use and enjoyable to listen to, I found I connected to people a lot easier in a very short space of time ### 5/5 — Fantastic!! *2014-08-18* These meditations are so amazing. U owe it to yourself to get them and evolve to places u didn't even know existed ### 5/5 — Amazing *2014-05-06, version 1.0* I have downloaded a few of Glenn's apps and this is by far my favourite. As quite an anxious person, I find I wake up feeling centered and at ease after listening to this app before sleeping. I've noticed the difference in how I feel when interacting with others as well. A great investment. ### 5/5 — Fantastic *2014-01-21* Worth every penny!!! ## Frequently asked questions about 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood ### What is the main benefit of using 639hz Solfeggio Sonic Meditation? This meditation aims to create emotional stability and harmonious relationships by utilizing the 639 Hz Solfeggio frequency. Users can experience improvements in self-love, acceptance, and a reduction in feelings of loneliness. ### How does 639hz Solfeggio Sonic Meditation help with sleep? The app includes a dedicated sleep version of the 639 Hz meditation track. This version is designed to guide users into a deep sleep state, making it ideal for use before bedtime. ### What is the Solfeggio scale used in this meditation? The Solfeggio scale is an ancient musical scale with specific healing properties. This recording uses the fourth note, 639 Hz, which is associated with connecting and harmonizing relationships and perceptions of love. ### Can I use 639hz Solfeggio Sonic Meditation during the day? Yes, the app provides a daytime audio track that guides you back to full waking consciousness at the end. This allows for a mindful session without lingering effects. ### What additional resources are included with 639hz Solfeggio Sonic Meditation? The app includes several e-books: Glenn Harrold's Self-Hypnosis e-Book, an e-book about the Ancient Solfeggio Scale and Healing Sounds, a 'How To Use This App' guide, and an e-book about the authors. ### What is the price of 639hz Solfeggio Sonic Meditation? The app is available for a one-time purchase of $3.99. ### On which devices can I use 639hz Solfeggio Sonic Meditation? This application is supported on iPhone, iPad, and iPod devices. ### How often is 639hz Solfeggio Sonic Meditation updated? The app was last updated on December 20, 2014, with version 1.2. The initial release date was March 28, 2012. ## Version history (last 3 releases) ### 1.2 — 2014-12-20 This app has been updated by Apple to display the Apple Watch app icon. Upgraded audio tracks and new PDF content. ### 1.1 — 2014-10-17 update to address iOS8 isses ### 1.0 — 2012-03-28 No release notes. ## Apps similar to 639hz Solfeggio Sonic Meditation by Glenn Harrold & Ali Calderwood | App | Rating | Price | Category | | --- | --- | --- | --- | | [Zero Smoke](https://appshunter.io/ios/app/zero-smoke/id6743452857) | — | Free | Health & Fitness | | [taion - Body Temperature chart](https://appshunter.io/ios/app/taion-body-temperature-chart/id6444841429) | — | Free | Health & Fitness | | [Stop Smoking - ZeroSmoke](https://appshunter.io/ios/app/stop-smoking-zerosmoke/id6748849730) | — | Free | Health & Fitness | | [THE YOGA HOUSE SG](https://appshunter.io/ios/app/the-yoga-house-sg/id6451200933) | — | Free | Health & Fitness | | [Wellspring On Main](https://appshunter.io/ios/app/wellspring-on-main/id1555938116) | 5.0 (1) | Free | Health & Fitness | | [Kohl's Fitness Center](https://appshunter.io/ios/app/kohls-fitness-center/id6751339529) | 5.0 (5) | Free | Health & Fitness | ## More apps by Glenn Harrold Publishing Ltd - [Deep Sleep by Glenn Harrold, a Self-Hypnosis Meditation for Relaxation](https://appshunter.io/ios/app/deep-sleep-by-glenn-harrold-a-self-hypnosis-meditation-for-relaxation/id362633320) - [Overcome The Fear of Flying by Glenn Harrold](https://appshunter.io/ios/app/overcome-the-fear-of-flying-by-glenn-harrold/id376784183) - [Build Your Self Esteem by Glenn Harrold](https://appshunter.io/ios/app/build-your-self-esteem-by-glenn-harrold/id378088243) - [Positive Thinking by Glenn Harrold](https://appshunter.io/ios/app/positive-thinking-by-glenn-harrold/id380922712) - [Stop Smoking Forever - Hypnosis by Glenn Harrold](https://appshunter.io/ios/app/stop-smoking-forever-hypnosis-by-glenn-harrold/id401606864) - [Be Happy - Hypnosis Audio by Glenn Harrold](https://appshunter.io/ios/app/be-happy-hypnosis-audio-by-glenn-harrold/id401607644) All apps by Glenn Harrold Publishing Ltd: https://appshunter.io/developer/1893582430 ## Related topics [glenn harrold](https://appshunter.io/ios/topics/glenn-harrold) · [solfeggio sonic meditations](https://appshunter.io/ios/topics/solfeggio-sonic-meditations) · [solfeggio solar chakra 528 hz](https://appshunter.io/ios/topics/solfeggio-solar-chakra-528-hz) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*