Soundlith: Slowed + Reverb
8D Audio, Bass Boost & Phonk
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Add a song from your files, tap a mode, press play. Slowed + reverb, true 8D, bass boost — and you can save the result as an MP3.
A song you already own, turned into something else. Slow it down, flood it with reverb, send it spinning around your head — one tap, and music you have heard a hundred times sounds new.
HOW IT WORKS
1. Add a track from your files — MP3, M4A, WAV or FLAC
2. Pick a mode
3. Press play. The sound changes instantly.
No account. No sign-up. Works offline.
TRUE 8D — BINAURAL HRTF
Binaural HRTF processing sends the sound along a real orbit around your head. Not a left-right pan — a space that flows from ear to ear. Headphones recommended.
SLOWED + REVERB, DONE RIGHT
The original technique behind the classic edits: pure resampling drops the pitch together with the tempo, naturally, with zero time-stretch artifacts. Reverb ranges from an intimate room to a cathedral.
17 MODES, ONE TAP EACH
• Slowed + Reverb, Deep Slowed, Vaporwave
• 8D, Deep Orbit, Void
• Bass Boost, Heavy Lifting, Phonk
• Sped Up, Nightcore
• Dreamy, Lo-Fi, Midnight, Concert, Next Room
• Original — the untouched track, always one swipe away
MODE FORGE — BUILD YOUR OWN SOUND
Four gestures shape motion, tone, space and weight. Save the result as your own signature and pin it to a track, so it comes back every time that song plays.
SAVE IT AS AN MP3
Render exactly what you are hearing and keep the file on your phone.
SLEEP RITUAL
The song slows imperceptibly, the reverb widens, rain rises, and it ends in silence. Set it and put the phone down.
THE EFFECT ENGINE
• Speed / tempo, 0.25x to 2.0x
• Pitch, independent or locked to tempo
• Multi-band bass with automatic headroom
• Adjustable reverb with hall presets
• Low-pass filter for lo-fi and a next-room feel
• Rain ambience
DESIGN
OBSIDIAN design language: monochrome, faceted, editorial. Selectable metal accents and haptics throughout.
YOUR MUSIC NEVER LEAVES YOUR PHONE
Every effect is computed on the device with Apple AVFoundation. Nothing is uploaded and there is no account to create.
PREMIUM
The free version shows ads. Premium unlocks all 17 modes, Mode Forge, MP3 export and Sleep Ritual, and removes ads. If you only want the ads gone, Remove Ads is a single one-time purchase.
Soundlith Premium is offered weekly, monthly and every 3 months. It renews automatically and can be cancelled anytime in your App Store account settings.
Terms of Use (EULA): https://soundlith.web.app/terms
Privacy Policy: https://soundlith.web.app/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added support for 15 languages. The app follows your device language automatically and can be changed in Settings.
The Settings screen has been redesigned.
Various improvements and bug fixes.
The developer, Berkay ATIK, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Berkay ATIK
- Size
- 51.8 MB
- Category
- Music
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $4.99
- Premium Monthly $12.99
- Premium Quarterly $21.99
- Premium Weekly $5.99
- Copyright
- © 2026 Berkay ATİK.