WhiteNoise | EchoCalm vs Sleep Effect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WhiteNoise | EchoCalm
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Make room for quiet with EchoCalm. Choose an everyday sound, relaxing music, or a lullaby. Set a timer, save your favorites, and return to a sound you enjoy when it is time to rest, focus, or take a break. A SOUND FOR YOUR MOMENT Browse nature and everyday sounds, gentle music, and lullabies. Pick one and start listening. YOUR TIME, YOUR TIMER Set a listening timer to fit your routine. The free version includes one-minute sessions. Pro unlocks longer listening sessions. KEEP A FAMILIAR VOICE Record your own voice, a lullaby, or a favorite sound. Save and rename recordings in your personal library. FIND YOUR FAVORITES Save the sounds you use most so they are easy to find again. NEW: SOUND DETECTION Use your microphone to listen for nearby noise. When the relative sound level passes your chosen threshold, EchoCalm starts your selected sound. Set how long it plays before listening resumes. Microphone permission is required. The level shown is relative, not a calibrated decibel measurement. Some sounds require an internet connection. PRO SUBSCRIPTION Pro offers longer listening sessions through an auto-renewing subscription. The price and subscription period are shown before purchase. Payment is charged to your Apple Account. Your subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel your subscription in your App Store account settings. Privacy Policy: https://misty-overcoat-b8c.notion.site/Privacy-Policy-for-EchoCalm-1-8e40677c9d8543ef8a0866c0600347ba Terms of Use: https://misty-overcoat-b8c.notion.site/Terms-of-Use-for-EchoCalm-f894fd7cb2254366bf06040a0064ca10
Sleep Effect
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SLEEP EFFECT: YOUR ARCHITECT OF CALM. Stop fighting the silence. Whether you’re battling a racing mind, a noisy neighborhood, or the hum of tinnitus, Sleep Effect empowers you to build a personalized audio sanctuary. Using a state-of-the-art layering engine, we don't just play sounds—we help you conduct your environment. WHY SLEEP EFFECT? Unlike standard sound machines that play repetitive loops, Sleep Effect uses an organic replay engine. By introducing natural delays between sounds, we eliminate "loop fatigue," creating an unpredictable, immersive atmosphere that feels like the real world. THE CORE FEATURES: 1. AN INFINITE LIBRARY OF HIGH-FIDELITY AUDIO Curated by sound enthusiasts, our library is immersive and categorized for effortless discovery: * WATER & RAIN: Thunderstorms, mountain streams, and the ocean pulse. * THE GREAT OUTDOORS: Rustling leaves, meadow breezes, and forest nights. * WILDERNESS ECHOES: Haunting loon calls, distant gulls, and midnight owls. * COZY ELEMENTS: Crackling log fires and wind-swept cabins. * AIR & SPACE: Mountain gusts and soft drones to clear mental clutter. 2. THE CUSTOM MIX ARCHITECT Don’t just listen—create. Layer unlimited sounds simultaneously with precision control: * INDIVIDUAL VOLUME SLIDERS: Make the rain heavy, but the distant thunder faint. * NAMED FAVORITES: Save your "Rainy Cabin" mix with custom emojis for one-tap relaxation. 3. PRECISION CONTROLS & SLEEP TIMER * GENTLE FADE-OUT: Set your timer and drift off as the audio gracefully fades to silence. * MASTER PLAYER: A polished, tactile interface to pause or stop all sounds instantly. 4. ORGANIC REPLAY DELAYS Our "Natural Replay" feature allows you to add manual delays between tracks. This ensures your environment stays fresh and organic, preventing your brain from spotting a loop. DESIGNED FOR YOUR BEDSIDE: * OBSIDIAN DARK MODE: Designed to reduce eye strain and keep your room dark. * LOCK SCREEN CONTROL: Full artwork and media controls without unlocking your phone. * BACKGROUND PLAY: Keep your soundscape running while using other apps. PERFECT FOR: * DEEP SLEEP: Mask tinnitus and silence racing thoughts. * PARENTS: Create a consistent, soothing environment for babies. * DEEP WORK: Block out office distractions and reach a flow state. * MEDITATION: Ground your practice with high-fidelity nature. Transform your space. Find your frequency. Download Sleep Effect today.
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Verdict
The clearest difference is in-app purchases: Sleep Effect at none against WhiteNoise | EchoCalm's 2. Sleep Effect also leads on ads (none vs shown). WhiteNoise | EchoCalm's advantage is iOS requirement (17.6 vs 26.1). On price, update cadence 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. WhiteNoise | EchoCalm sells 2 in-app purchases, starting at $2.99 per 7 days. Sleep Effect asks for nothing beyond the download.
WhiteNoise | EchoCalm ships an update monthly, Sleep Effect fortnightly. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.
| Parameter | WhiteNoise | EchoCalm | Sleep Effect |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 26.1 |
| Further details — not scored | ||
| Size | 103 MB | 324 MB |
| Age rating | 4+ | 4+ |
| Developer | Yauhen Shchamialiou | Ahmed Nabulsi |
In-app purchases
WhiteNoise | EchoCalm
- Weekly Premium$2.997 Days
- Monthly Premium$7.991 Month
Sleep Effect
No in-app purchases
Questions
Is WhiteNoise | EchoCalm free?
Is Sleep Effect free?
Do WhiteNoise | EchoCalm or Sleep Effect have ads?
Which is updated more often, WhiteNoise | EchoCalm or Sleep Effect?
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