Comparison

Slumba vs Aethyr Waves

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

Head to head
About

Slumba

Craft personalized soundscapes to aid sleep with an intuitive mixer. Choose from various nature and noise themes, set sleep timers, and control playback via Apple Watch or home screen widgets. Integrates with Sleep Focus for automated bedtime routines.

Highlights
  • Intuitive soundscape mixer
  • Five handcrafted soundscapes
  • Customizable sleep timers
  • Apple Watch app control
  • Home screen widgets
  • Sleep Focus integration
  • Siri voice commands
Features
Read full description

Sleep shouldn't be complicated. Slumba gives you a beautiful, handcrafted soundscape — and lets you blend it exactly the way you want. THE MIXER Most sleep apps give you a volume slider. Slumba gives you something more intuitive. Each soundscape layers three sounds together, and you blend them by dragging a single glowing point across a soft triangle. Ease it toward rain and the storm deepens. Nudge it to the center and everything balances. Find what feels right tonight, set your phone down, and let it carry you off. FIVE SOUNDSCAPES Noise — White, Pink & Brown Noise Storm — Rain, Wind & Thunder Ocean — Waves, Breeze & Gurgle Creek — Stream, Rustle & Birds Campfire — Fire, Night Air & Crickets Noise is always free. Try the rest free for 5 minutes — one small purchase unlocks everything. Forever. SLEEP TIMER Set a timer for 15, 30, 45, 60, or 120 minutes and Slumba fades your sounds gently to silence. No sudden cutoffs. Just a slow, peaceful fade — and then sleep. YOUR PHONE CAN STAY FACE-DOWN Once you're in bed, you shouldn't need to touch your phone. Slumba makes that easy. The Apple Watch app lets you start a soundscape, switch presets, and set a timer from your wrist. The Lock Screen widget shows your timer counting down without unlocking. Add the toggle to Control Center and starting Slumba becomes a single tap before you set your phone down for the night. On iPhone 14 and later, the Live Activity keeps your timer visible in the Dynamic Island while you do your bedtime routine. ON YOUR HOME SCREEN The small home screen widget shows what's playing at a glance. The medium widget goes further — when nothing is playing, it shows all five soundscapes as soft buttons you can tap to start one directly, without opening the app. SLUMBA KNOWS WHEN IT'S BEDTIME Connect Slumba to your Sleep Focus and it can start your chosen soundscape automatically when your bedtime routine begins — without you having to remember. Ask Siri to play a specific soundscape, or set a timer hands-free. "Play Ocean on Slumba." That's all it takes. BUILT FOR SLEEP No accounts. No subscriptions. No ads. No tracking. Just sounds that help you sleep. APPLE WATCH The best thing about the Apple Watch app is what it saves you from doing — reaching for your phone when you're already comfortable. From your wrist you can start any soundscape, switch between Noise, Storm, Ocean, Creek, and Campfire, and set a sleep timer for exactly as long as you need. The countdown rests softly on screen. When the time comes, Slumba fades out on its own. Your phone can stay face-down. The room can stay dark. You don't have to move.

About

Aethyr Waves

Features
Read full description

Your daily companion for focus, sleep, energy, and inner balance. Aethyr Waves combines binaural beat frequencies with live-generated ambient music. No loops, no two sessions ever sound the same. Every preset is engineered around a specific brainwave band — Delta, Theta, Alpha, Beta, or Gamma — to gently support a distinct mental state. WHAT MAKES IT DIFFERENT • Procedural music engine — melodies, pads, arpeggios, and drums composed in real time, never repeating • 17 curated musical moods spanning peaceful, cosmic, energetic, genre, and active soundscapes • 37 specialized sessions across 8 categories: Mental, Sport, Emotional, Pain & Health, Sleep, Productivity, Wellness, and Active Predisposition • Dynamic session arc — intros breathe gently, peaks bring energy, outros settle for a calm close • Personalized wizard that recommends your session based on goal and energy • Five binaural bands precisely tuned to standard neuroscience frequencies NEW IN 1.4.0 — ACTIVE PREDISPOSITION A new category designed to prime your mind for action, not accompany it. Pre-gym, pre-pitch, pre-presentation, morning surge — sessions powered by real drum kits (kick, snare, hi-hat), sidechain compression for that classic EDM pump, and tempo curves that accelerate with you (the Ignition session ramps from 88 to 124 BPM in its first minute). DESIGNED FOR DAILY USE Whether you are working, meditating, sleeping, training, or creating, Aethyr Waves adapts to your needs with sessions from 5 minutes to unlimited duration. Background audio keeps your session running while you use other apps, and a guided 4-step wizard gets you started in seconds. FREE TIER 5 starter sessions including Meditation, Deep Focus, Mindfulness, Repetitive Work, and Gamer Focus, with sessions up to 5 minutes and a daily limit of 20 minutes total. PREMIUM SUBSCRIPTION ($3.99/month) • All 37 sessions across every category, including the new Active Predisposition family • All 17 procedural music moods • Unlimited session duration • Full customization: binaural frequency, base tone, noise mix, melody mood • All 8 wizard goal templates Stereo headphones are required for the binaural effect to work. For relaxation and wellness only. Not a medical device. Privacy Policy: https://waves.aethyrstudio.com/privacy Terms of Use: https://waves.aethyrstudio.com/terms

Screenshots

Slumba4 screens
Aethyr Waves4 screens

Verdict

The call

The clearest difference is iOS requirement: Aethyr Waves at 15.0 against Slumba's 26.2. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Slumba sells 1 one-off in-app purchase and Aethyr Waves sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Slumba versus Aethyr Waves: the parameters behind the verdict, then further details
ParameterSlumbaAethyr Waves
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS26.215.0 — better
Further details — not scored
Size39 MB6 MB
Age rating4+4+
DeveloperIan GoudieSEBASTIAN E HERNANDEZ CACERES

In-app purchases

1 purchases

Slumba

One-time1
  • Unlock All Presets$2.99
1 purchases

Aethyr Waves

Subscriptions1
  • Aethyr Waves Premium$3.991 Month

Questions

Is Slumba free?
Slumba is free to download, with in-app purchases available.
Is Aethyr Waves free?
Aethyr Waves is free to download, with in-app purchases available.
Do Slumba or Aethyr Waves have ads?
Neither Slumba nor Aethyr Waves shows ads.

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