App Overview

Brain.fm: Focus & Sleep Music icon

Brain.fm: Focus & Sleep Music

Brain.fm · Productivity

Focus, Relax, Meditate and Sleep, with Music Made for Your Brain

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.5
5,440 ratings · Top 15%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Brain.fm: Focus & Sleep Music: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Offer more free soundscapes to increase user engagement.

Assumption to check: Limited free content

Validate with people who use this workflow before building.

Hypothesis 2

Simplify pricing and subscription options with clear benefits.

Assumption to check: Subscription model can be unclear

Validate with people who use this workflow before building.

Hypothesis 3

Improve audio streaming stability and provide offline access.

Assumption to check: Occasional playback issues

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to create playlists or save favorite soundscapes.

Assumption to check: Lack of customization options

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Focus, Relax, Meditate and Sleep, with Music Made for Your Brain. Brain.fm is science-backed music that enhances focus, improves sleep, and more. We use sound to change your brainwave patterns, so you can drop into deep focus or fall asleep faster, every time. Now with ADHD mode! IMPROVE FOCUS, RELAX, MEDITATION, SLEEP Do you struggle to focus at work or studying? Do you have trouble winding down or falling asleep at night? Brain.fm will help you: • Focus faster and get into flow. • Beat procrastination. • Stay in flow longer. • Fall asleep and stay asleep. • Meditate more effectively. • Reduce stress and anxiety. 10X YOUR FOCUS • Boost activity in brain regions controlling attention • Increase focus by up to 10x • Reduce tension/anxiety by 2x compared to other relaxing music. • Improve brain signatures of deep sleep Funded by the National Science Foundation (USA) Brain.fm affects your brain differently than any other music! Our patented tech works via brainwave entrainment, and has been tested extensively with funding from the US government. Our music process includes both humans and AI, for the best-sounding AI music around. BRAIN.FM FEATURES • Personalized music for your brain type. • Tons of genres from LoFi beats to Classical. We even have Nature soundscapes! • Stimulation level is adjustable, with a boost option for ADHD brains. • Download music for offline use / airplane mode. • Pomodoro mode for productivity sprints. IDEAL BACKGROUND MUSIC • Focus modes optimized for deep work, learning, creativity, and more! • Relax modes made to help you recharge during the day or unwind in the evening. • Meditation modes including both guided and unguided meditations. • Sleep modes including guided sleep and energizing wakeup. ADHD MODE FOR ADHD BRAINS Some brains need extra stimulation to focus best. That’s why people with ADHD fidget when they’re trying to pay attention. Brain.fm provides this kind of stimulation through music. There’s even a boost option specifically for ADHD. Think of brain.fm as a fidget spinner for your brain! BETTER THAN BINAURAL BEATS Binaural beats and isochronic tones also use brainwave entrainment, but brain.fm does it better. We use patented A.I. on top of human-composed music to help you find your flow faster than binaural beats or other brainwave entrainment audio. REVIEWS "It’s an instant ability to focus in a way I’ve never experienced before." - Brit Morin, Founder of Brit + Co, featured on Entrepreneur "I started using brain.fm while working and was shocked by how much it improved my focus" - VICE FREE TRIAL WITH FULL ACCESS for 14 days, followed by a subscription (see in-app purchases for pricing information). Prices listed are for U.S. customers. Pricing in other countries may vary, and charges may be converted to your local currency depending on your country of residence. Terms of use - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.