サラヤ健康総合アプリV vs River Sounds App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
サラヤ健康総合アプリV
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サラヤ健康総合アプリVは、ユーザーの運動履歴や健康情報を記録・管理できるアプリです。 ・運動管理機能 運動した内容を入力することで、消費カロリーの計算をすることができます。 また、サラヤ製の腕時計型端末と連携することで、歩数などのデータも記録することが可能です。 ・サービス管理機能 血圧測定などの測定結果を記録することができます。 ・イベント機能 イベントに参加することで目標が設定されるため、個人個人が目標を持って運動を続けることができます。 また、他のユーザーと運動による消費カロリーで競ったりすることもできます。 ・アンケート/問診票機能 企業担当者様が作成した問診票・アンケートに回答することができます。 ※新規ユーザー登録は、ご契約企業様のみ行うことができます。 ※全ての機能をご利用いただくには、弊社開発の腕時計型端末が必要となります。
River Sounds App
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This app is a simple yet highly functional nature sound tool dedicated solely to the sound of a flowing river. High-Quality River Sounds, Ready in One Tap: Play immediately with no setup required. Let your mind be wrapped in natural calm. Sleep Timer for Stress-Free Bedtime: Set a timer and fall asleep without worrying about battery drain or all-night playback. Background Playback Support: Continue listening while using other apps or with the screen locked. Offline Playback Available: Once downloaded, the river audio can be enjoyed anywhere—even with no internet connection. Immersive River Visuals: Relaxing footage of flowing water increases your sense of presence and deepens relaxation. Our minds never truly rest anymore. Even in bed, thoughts keep running, replaying the day and planning for tomorrow. But what if you could switch that thinking off as simply as turning off a light? What if you could momentarily step out of the noise of daily life and return to a quiet, inner space? This app exists to make “doing nothing” possible. We provide only one thing: unprocessed, real river sound. A soundscape that gently guides your body and mind back to their natural state of rest. Why is “just river sound” so effective? There are scientific reasons why the sound of a river has such a profound calming effect on the human mind. 1/f Fluctuation — The Rhythm of Comfort Experts call this the ultimate soothing rhythm. River sound contains a natural pattern of micro-variation that synchronizes with the body’s internal rhythms (like heartbeat and breathing), helping the nervous system settle and making relaxation easier. Sound Masking Effect The wide frequency range of water sound softly covers unwanted background noises—conversation, air conditioning units, ticking clocks—creating a mental space free from interruption and allowing your brain to stop filtering out distractions. Hypersonic Effect Studies suggest that natural recordings contain complex high-frequency components that, even if inaudible, positively influence brain activity and help stabilize emotional balance. This is a benefit lost in many compressed audio files. Designed for the Best Possible Experience We removed everything that could possibly interfere with your immersion. Ultimate Simplicity to Quiet Your Mind You open the app, tap play, and the river begins. The UI never asks you to choose or compare. No thinking required. Deep Immersion for Eyes and Ears Watch the gentle flow of water to clear your mind, or simply close your eyes and listen. The experience is yours to shape. A Smart Sleep Timer for Peace of Mind It's safe to fall asleep with the sound on. The timer will gently fade out the audio, ensuring a peaceful night without draining your battery. Seamless Integration Into Your Daily Life The sound continues to play in the background, making it a perfect companion for work, studying, reading, or meditation. No Network Dependency The app is perfect for travel, airplanes, or remote locations where the internet is unreliable. Your peace and quiet should not depend on a connection. This app will help you when... Your mind keeps replaying the day the moment you lie down. You feel a sense of stress or anxiety keeping your body tense. You want to block out office or café noise to focus deeply. You need to quiet your thoughts before meditation or breathing practice. Emotions are running high and you need a moment to reset calmly. You can't fall asleep in an unfamiliar hotel room. You want to provide gentle, natural white noise for a baby to sleep.
Screenshots
Verdict
The clearest difference is ads: サラヤ健康総合アプリV at none against River Sounds App's shown. サラヤ健康総合アプリV also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (12.4 vs 15.6). 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.
サラヤ健康総合アプリV ships an update every 2 months, River Sounds App every 8 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | サラヤ健康総合アプリV | River Sounds App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 31 MB | 108 MB |
| Age rating | 12+ | 4+ |
| Developer | Saraya Co.,Ltd. | NEONSOAK |
In-app purchases
サラヤ健康総合アプリV
No in-app purchases
River Sounds App
No in-app purchases









