ZDRing vs Lullaby Method
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZDRing
This app works with smart rings to monitor your sports performance in real time. It tracks steps, distance, calories burned, and sleep quality, integrating with Apple Health.
- Real-time sports performance monitoring
- Step, distance, and calorie tracking
- Sleep quality monitoring
- Apple Health integration
- Works with smart rings
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这款应用程序与我们的智能戒指配合使用,可直接从您的手指获取最佳信息。 我们的智能戒指可实时监测您的运动表现 这款应用程序与 Apple Health App 集成。 内置计步器可追踪您的步数、距离和卡路里消耗。 内置睡眠监测器可追踪您的睡眠质量。 This app works with our smart rings to get the best information straight from your finger. Our smart rings monitor your sports performance in real time This app integrates with the Apple Health App. Built-in pedometer tracks your steps, distance and calories burned. Built-in sleep monitor tracks your sleep quality.
Lullaby Method
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The last feeling before sleep is what your subconscious works on all night. Lullaby Method is built on a single insight from Neville Goddard: fall asleep already feeling like the person you want to become. Not hoping. Not wishing. Feeling it - as your real, present reality. HOW IT WORKS Choose your intention - love, abundance, career, health, or peace. Read your script aloud and record it in your own voice. Play it back as you drift toward sleep. Your subconscious receives the feeling all night long. In the morning, check in and begin noticing evidence. WHY YOUR OWN VOICE Your brain responds to your voice differently than any other sound. Recording your intention creates a direct channel to your subconscious - one that no guided meditation or affirmation track can replicate. WHAT YOU GET - Personal SATS sessions in your own voice - Curated background music tuned for the hypnagogic threshold - Morning check-in to train evidence awareness - Evidence journal to track what shifts - Session streak and calendar - 11 languages supported Privacy Policy: https://enginaytekin.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ZDRing at none against Lullaby Method's 3. ZDRing also leads on device support (3 vs 1). Lullaby Method's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads and iOS requirement there is nothing between them.
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. Lullaby Method sells 3 in-app purchases, starting at $3.99 per 7 days. ZDRing asks for nothing beyond the download.
ZDRing ships an update every 5 weeks, Lullaby Method every 2 weeks. Both last shipped on October 2, 2026.
| Parameter | ZDRing | Lullaby Method |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 292 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Zhongdong Technology Co., Ltd. | Engin Aytekin |
In-app purchases
ZDRing
No in-app purchases
Lullaby Method
- Lullaby Method Premium$3.997 Days
- Lullaby Method Premium7 Days trial$9.991 Month
- Lullaby Method Premium7 Days trial$59.991 Year









