Quantum Self vs Astral Alarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quantum Self
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Quantum Self helps you stop waiting to become your next version and start living as them now. Start with the free 3-Day Quantum Self Challenge, guided by Nate Carter: - A short daily video lesson for each day - Guided practice and activation audio - A daily checklist and habit tracker to build your new routine - A journal with prompts to name, question and replace old beliefs - Progress tracking to see your shift over time - Your birth chart in both Tropical / Classic 12 and True Sidereal (13-Signs) Ready to go deeper? Explore The Quantum Leap 1:1™, Nate's 8-week private coaching for creators, coaches and healers, and apply right inside the app. Coaching clients get a private dashboard with their session schedule, journey map, action steps and direct chat with Nate.
Astral Alarm
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Astral Alarm wakes you when you enter REM sleep, the dream phase that out-of-body and lucid dreaming practice is built around. Set a wake window, tap Sleep and go to bed. Through the night your Apple Watch follows your heart rate and wrist movement and estimates which sleep stage you are in. When a REM phase begins inside your window, the alarm goes off. If no REM phase is found, it rings at your latest time, so you never oversleep. HOW IT WORKS • Choose the earliest and latest time you want to be woken. • Tap Sleep when you lie down. • The watch estimates light, deep and REM sleep through the night. • The alarm rings at the first REM phase in your window. SNOOZE TO THE NEXT REM PHASE Snooze does not count minutes. It waits for your next REM phase and wakes you then, or at your latest time if none comes. TRACK YOUR RESULTS In the morning, see your night as a timeline of sleep stages and rate how your practice went from 0 to 100%. Astral Alarm keeps 30 days of nights in a graph of wake-up times and results, so you can see what works for you. Tap any night for its details. TUNED TO YOU If you use Apple's sleep tracking, Astral Alarm reads your recent nights to learn your own typical REM heart rate and adjusts its detection to match. A sensitivity setting lets you fine-tune it further. YOUR ALARM, YOUR WAY • Vibration, chime, or both • Snooze and Cancel on the alarm screen • A backup notification at your latest time PRIVATE BY DESIGN Everything stays on your Apple Watch. No account, no ads, no analytics, and nothing is sent anywhere. GOOD TO KNOW • Sleep stages are estimates based on heart rate and movement. Astral Alarm is not a medical device. • Tracking keeps the heart rate sensor on all night, which uses a large share of the battery. Charge your watch before bed. • Requires Apple Watch with watchOS 10 or later. No iPhone app is needed.
Screenshots
Verdict
Quantum Self and Astral Alarm are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Quantum Self | Astral Alarm |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 139 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | Nathan Carter | Injinash Goosh |
In-app purchases
Quantum Self
No in-app purchases
Astral Alarm
No in-app purchases









