NeuralStack.io™: Focus & Sleep

In-app purchases
5+
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Content rating
Everyone
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About this app

Build, remix, and shape your mindset with customizable Brainwave Entrainment Stacks. NeuralStack.io is designed for people who want more than fixed audio tracks. Instead of locking you into pre-made sessions, NeuralStack.io gives you flexible tools to create and refine Stacks composed of multi-stage Stack Elements—so you can shape your ideal mindset for any situation. Start with the included Explore Stacks, or create your own by combining multi-stage brainwave entrainment, guided breathing, and other sound elements into a single, integrated Stack.

A Stack is a composition of elements including Guided Breathing, Pure Sine Waves, Brainwave Entrainment, Ambience, Nature Sounds, Personal Audio Files, and Noise. Each element is assigned a program consisting of one or more stages. Programs can be remixed and combined to create custom multi-stage programs with ratio-based stage durations that adapt to any Stack duration. Tone-based Brainwave Entrainment and Pure Sine Wave Elements include the ability to create custom stages using specific frequencies.

Create and Customize Stacks
* Build fully customizable Stacks by combining tones, breathing, ambience, and personal audio.
* Remix the included Explore Stacks or create your own from scratch.
* Add or remove elements, adjust duration and volume balance, and fine-tune structure.

Guided Breathing, Integrated
* Enhance sessions with guided breathing built directly into your Stacks.
* Remix the included breathing programs to match your pace and goals.
* Create custom multi-stage breathing programs with adjustable tempo and visuals.
* Customize breathing guidance phrases to include personal mantras or affirmations.
* Supports fractional breathing patterns, such as Coherent 5.5 second cycles.

Listen alongside other apps:
* Listen while playing audio or video from other apps.
* Set your preference for allowing other apps at the app-level or the stack-level so different Stacks can have different behaviors.

Listen Offline:
* Audio resources are synchronized to the device instead of being streamed, improving efficiency and allowing you to listen while offline.

Create custom brainwave programs for your Stack
* Add or remove stages, fine-tune stage durations.
* Create multi-stage brainwave entrainment programs using beat frequencies from 0.5–100 Hz.
* Specify fractional frequencies with 2-decimal precision.
* Choose carrier frequencies from 100–1000 Hz with automatic power equalization.
* Choose from 4 different Tone Modes: Binaural, Monaural, Isochronic, or phase-synchronized Binaural + Isochronic modes.

Advanced Global Settings
* Use the app's Global Settings to modify tone characteristics, such as cycles-per-pulse and gain to sharpen or soften isochronic and monaural modulation.

Stack Playlists
* Organize your creations into playlists to support your daily routine.
* Create sequences of Stacks that use different Tone Modes to target specific frequencies with different tone modulations.

Ambience and Nature Sounds
* Layer dynamic ambience and nature sounds.
* Remix programs, combining them to create multi-stage ambient and nature programs, and reuse them across different Stacks.

Solfeggio and Schumann Frequencies
* Includes single and multi-stage entrainment programs utilizing Solfeggio carrier frequencies and Schumann resonant beat frequencies.

Noise
* Layer a noise element into your stack for sound masking.

Pure Sine Waves
* Create pure sine waves from 100 to 1000 Hz with automatic power equalization and 2-decimal precision.
* Remix and combine programs to create multi-stage Solfeggio progressions.

Custom Audio Programs
* Import and integrate personal audio files, such as affirmations or mantras into your Stacks.
* Note: This feature is only intended for personal audio files, such as those recorded with voice recording apps, and cannot access copy-protected audio or audio from streaming services.
Updated on
Mar 14, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

App support

About the developer
BANZAI LABS INC.
support@banzailabs.com
10900 Research Blvd Ste 160C Pmb 1545 Austin, TX 78759-5718 United States
+1 737-393-1258