集中852 vs Waveful
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
集中852
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Focus852 – 音の力で、心を静める Focus852は、ソルフェジオ周波数・脳波同調サウンド・ノイズサウンドを再生し、瞑想・休憩・学習・睡眠など多様なシーンで活用できる音響アプリです。 174Hz〜963Hzのソルフェジオ周波数 デルタ〜ガンマまでの脳波帯域サウンド ホワイト/ピンク/ブラウンノイズ シンプルな再生ボタンとタイマー機能 グラデーション背景と波形アニメーション 心を落ち着けたい時、集中したい時、安らぎたい時。 あなたの日常に、静かな音の空間をお届けします。 ※医療的な効果を保証するものではありません。リラクゼーション目的でご利用ください。
Waveful
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* Sound-based Wellness App Inspired by Frequency Research This wellness app provides frequency (Hz)-based sounds inspired by scientific papers and research studies. Explore sound categories such as Motion Comfort, Relaxation, Focus Support, Meditation, Ambient Noise, and Guided Breathing to create a more comfortable listening experience in everyday life. * Available Sounds 1. 100Hz Motion Comfort / Gentle Low-Frequency Support - Inspired by research published in Environmental Health and Preventive Medicine by researchers from Nagoya University, Japan (2025) 2. 432Hz Relax Mode / Relaxation & Sleep Support - Inspired by research published in EXPLORE by researchers from the University of Florence, Spain (2019) - Inspired by research published in Journal of Applied Oral Science by researchers from Valdivia, Chile (2020) 3. 528Hz Relaxation Tone / Calm & Relaxation Support - Inspired by research published in Health by researchers from Juntendo University, Japan (2018) 4. Binaural Beats Focus Support / Concentration Aid - Inspired by research published in Psychological Research by researchers from UNED, Spain (2019) - Inspired by research published in PLOS ONE by researchers from the University of Duisburg-Essen, Germany (2023) 5. 40Hz Gamma-Inspired Sound / Cognitive Focus Support - Inspired by research published in Journal of Neuroscience by researchers from the Pamplona Medical School, Spain (2002) 6. Ambient Noise Layer / White, Pink & Brown Noise - Inspired by research published in Journal of Clinical Sleep Medicine by researchers from Weill Cornell Medical College, USA (2022) - Inspired by research published in Frontiers in Psychology by researchers from Hamburg University Hospital, Germany (2015) 7. Guided Breathing / 4-7-8 & Box Breathing - Inspired by research published in Neuroscience & Biobehavioral Reviews by researchers from the University of Caen Normandy, France (2022) 8. 963Hz Meditation Tone / Deep Meditation - Direct clinical evidence regarding the specific effects of 963Hz remains limited. - This feature is designed as a high-frequency meditation sound intended to support deep meditation and immersive listening experiences rather than medical treatment. 9. 639Hz Harmonic Energy / Harmonious Atmosphere - Direct clinical evidence regarding the specific effects of 639Hz is currently limited. - This feature is intended to provide a soft harmonic tone for creating a calm and harmonious atmosphere. 10. 72Hz Deep Grounding / Low Frequency Grounding - Direct clinical evidence regarding the specific grounding effects of 72Hz has not been established. - This feature is designed as a low-frequency sound intended to create a calm and stable listening environment. 11. 1122Hz Clarity Tone / Clear High-Frequency Tone - Direct clinical evidence regarding the specific effects of 1122Hz remains limited. - This feature is intended to provide a clear and crisp high-frequency listening experience that may support focus and mental clarity. * Recommended Listening Time - Motion Comfort: 1 min - Sleep / Relaxation: 20–45 min, default 30 min - Stress Relief: 10–30 min, default 15 min - Focus: 15–45 min, default 25 min - Meditation: 10–30 min, default 15 min - Energy / Awakening: 5–15 min, default 10 min - Cognitive Focus Support: 10–20 min, default 15 min - Deep Grounding: 5–20 min, default 10 min - Spiritual / Intuition Sounds: 5–20 min, default 10 min *How to Use 1. Wear earphones or headphones for a more immersive experience. 2. Select your preferred category and press play. 3. Customize the playback timer as needed. * Key Features - Custom Hz settings - Background playback - Multiple timer options This app is a wellness tool inspired by research. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Individual experiences may vary. Consult a qualified healthcare professional for health-related concerns.
Screenshots
Verdict
The clearest difference is ads: 集中852 at none against Waveful's shown. Waveful's advantage is iOS requirement (16.0 vs 18.5). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 集中852 | Waveful |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.5 | 16.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryota Koda | Purple Night Inc |
In-app purchases
集中852
No in-app purchases
Waveful
No in-app purchases









