NeuralStack.io™ vs Stillwell
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NeuralStack.io™
Create personalized audio experiences for focus, sleep, and mindset enhancement. Combine brainwave entrainment, guided breathing, and ambient sounds to build custom 'Stacks'. Listen offline and alongside other apps.
- Customizable Stacks with multi-stage elements
- Brainwave entrainment (0.5-100 Hz)
- Guided breathing programs
- Layered ambience and nature sounds
- Offline listening
- Integration with other apps
- Stack playlists
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Shape your mindset with customizable Brainwave Entrainment Stacks. Listen in Binaural, Monaural, Isochronic, or combined Binaural + Isochronic Tone Modes. Headphones are optional when listening to Monaural or Isochronic tones. Start with 100+ included Explore Stacks, or create your own by combining any of 300+ Multi-Stage Brainwave Entrainment programs with Guided Breathing and background audio elements into an integrated Stack. NeuralStack.io is designed for people who want more than fixed audio tracks. Instead of locking you into pre-made sessions and pre-mixed tones, NeuralStack.io provides advanced tone modulation and flexible tools to create custom soundscapes, so you can shape your ideal mindset for any situation. Includes 300+ advanced brainwave entrainment programs for focus, relaxation, stress relief, memory, insomnia relief, sleep, meditation, anxiety relief, and much more. Create custom multi-stage brainwave entrainment programs for your Stacks: * Add or remove stages, fine-tune stage durations. * Specify any beat frequency from 0.5–100 Hz. * Specify fractional frequencies with 2-decimal precision. * Choose carrier frequencies from 100–1000 Hz with automatic power equalization. * Listen in 4 Tone Modes: Binaural, Monaural, Isochronic, or phase-synchronized Binaural + Isochronic modes. * Supports Schumann Resonance frequencies (ex 7.83 Hz). Listen alongside other audio/video apps: * Set your preference to allow other apps at the app-level or the stack-level. Listen Offline: * Audio resources are synchronized to the device instead of being streamed, eliminating network traffic, saving battery life, and allowing you to listen offline. Guided Breathing: * Remix the included breathing programs to match your pace. * Create custom multi-stage breathing programs with adjustable tempo, text, and visuals. * Supports fractional breathing patterns, such as Coherent 5.5 second cycles. 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 Stacks into playlists to support your daily routine. * Create sequences of Stacks that use different Tone Modes. Ambience and Nature * 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 to be remixed and customized. Color Noise * Layer a color noise element into your stack for sound masking and tinnitus relief. Pure Sine Waves * Create pure sine waves from 100 to 1000 Hz with power equalization and 2-decimal precision. * Remix and combine programs to create multi-stage Solfeggio progressions. Custom Audio Programs * Integrate personal audio files 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. Subscription Required NeuralStack.io offers a free trial. Continued access to all features and content requires an auto-renewing subscription. Subscription options: $2.99/month or $24.99/year. These prices are for the United States, pricing in other countries may vary. Subscription will automatically renew unless turned off at least 24 hours before the current period ends. You can go to your App Store Account settings to manage your subscription and turn off auto-renew. Your App Store Account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy https://neuralstack.io/#privacy
Stillwell
This guided journal helps you manage burnout over 30 days by focusing on energy, boundaries, and rebuilding meaning. It offers daily prompts, mood checks, and insights, with weekly reviews and an energy tracker. Everything is private and stays on your device.
- Guided daily reflection prompts
- Energy and mood check-ins
- Weekly pattern reviews
- Energy-over-time visualization
- Customizable steady-state plan
- Journal export to PDF
- Private, on-device journaling
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Burnout does not need a pep talk. It needs five minutes. Stillwell is a candid self-care companion for burned-out professionals. Open the app, say what is going on right now, and one tap routes you to something that actually helps. SHORT SESSIONS FOR REAL SITUATIONS Feeling like a fraud. Dreading a review. Layoffs in the air. Comparing yourself to everyone. Each session is a few honest minutes: name it, one solid reframe, one paced breath, one small action. Then back to your day. A COMPANION WORTH KEEPING Mote is a small creature with a dry sense of humor. Feed him, play with him, put him to bed. He grows as you show up, unlocks new things to say, and never guilts you. Skip a day and nothing bad happens. BREATHING THAT FITS THE MOMENT Choosable paced breathing with plain explanations: settle, wind down, shake off a spike, or steady yourself before something hard. CLOSE THE DAY ON PURPOSE An evening ritual: name what actually got done, park what can wait until tomorrow, one long exhale. Two minutes, then go be a person. SAY THE HARD THING Copy-ready scripts for the conversations burnout makes difficult: declining a project, asking for more time, protecting your evenings, taking a real day off. THE 14 DAY BURNOUT RESET Two weeks, one short session a day. Week one is seeing clearly and stopping the bleed. Week two is rebuilding a steadier baseline. FREE TO START, HONEST TO UPGRADE The daily check-in, your companion, breathing, and a rotating set of sessions are free, forever. Stillwell Complete unlocks everything, with a 7 day free trial. Billed by Apple, cancel anytime. PRIVATE BY DESIGN No account. No tracking. Everything stays on your phone, and you can erase it all in one tap. Stillwell supports wellbeing. It is not therapy, and it is not a substitute for professional care.
Screenshots
Verdict
The clearest difference is update cadence: Stillwell at every 9 days against NeuralStack.io™'s every 3 weeks. NeuralStack.io™'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume 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. NeuralStack.io™ sells 2 in-app purchases, starting at $2.99 per month and Stillwell sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for NeuralStack.io™ against 5.0 for Stillwell. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
NeuralStack.io™ ships an update every 3 weeks, Stillwell every 9 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | NeuralStack.io™ | Stillwell |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 179 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Banzai Labs | FRANCIANE Monfron |
Customer experience
NeuralStack.io™
Stillwell
In-app purchases
NeuralStack.io™
- NeuralStack.io Monthly Subscription14 Days trial$2.991 Month
- NeuralStack.io Annual Subscription14 Days trial$24.991 Year
Stillwell
- Stillwell — Full Access$3.99
- Stillwell Complete$4.99









