Comparison

SnoozeStack vs Sleep Effect

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SnoozeStack

Features
Read full description

Fall asleep faster with SnoozeStack. Mix and blend ambient sounds to create your perfect soundscape. Rain, ocean waves, crackling fire, and more — all in one beautiful, simple app. Create Your Perfect Mix Choose from 24 handcrafted ambient sounds and blend them together. Layer rain over a crackling fireplace. Combine ocean waves with gentle wind. The possibilities are endless. Built for Sleep Set a sleep timer and drift off peacefully. SnoozeStack will gradually fade out and stop — no sudden silence, no jarring alarms. Just peaceful rest. Simple by Design No accounts. No ads. No complicated settings. Open the app, tap your sounds, and relax. Free: 8 sounds, mix up to 2 at once, sleep timer, background playback. Premium ($3.99 one-time): All 24 sounds, unlimited mixing, save custom mixes, all future sounds free. No subscriptions. No data collection. No nonsense. Just sounds.

About

Sleep Effect

Features
Read full description

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.

Screenshots

SnoozeStack4 screens
Sleep Effect4 screens

Verdict

The call

The clearest difference is in-app purchases: Sleep Effect at none against SnoozeStack's 1. SnoozeStack's advantage is iOS requirement (13.0 vs 26.1). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SnoozeStack sells 1 one-off in-app purchase. Sleep Effect asks for nothing beyond the download.

Scorecard2 real differences · 4 level
SnoozeStack versus Sleep Effect: the parameters behind the verdict, then further details
ParameterSnoozeStackSleep Effect
PriceFreeFree
Update frequency—Fortnightly
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.1
Further details — not scored
Size48 MB324 MB
Age rating4+4+
DeveloperCarl GahnbergAhmed Nabulsi

In-app purchases

1 purchases

SnoozeStack

One-time1
  • SnoozeStack Premium$3.99
None

Sleep Effect

No in-app purchases

Questions

Is SnoozeStack free?
SnoozeStack is free to download, with in-app purchases available.
Is Sleep Effect free?
Sleep Effect is free to download, with no in-app purchases.
Do SnoozeStack or Sleep Effect have ads?
Neither SnoozeStack nor Sleep Effect shows ads.

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