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.
Stressed out? Trouble sleeping? Distracting sounds at work or school? Need a relaxing break from a busy day?
$3.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Brainwave Studio: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Limited sound selection in free version
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulties in finding specific sounds
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent audio quality
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Stressed out? Trouble sleeping? Distracting sounds at work or school? Need a relaxing break from a busy day? If your answered yes to any of those questions then Brainwave Studio is for you! Brainwave Studio is a professionally designed relaxation, stress relief, sleep support, meditation and mind training system, with 40 brainwave entrainment sessions of carefully selected nature sounds and superb quality ambient music. ________________________ How does it work? Brainwave Studio uses isochronic tones, widely regarded as the superior brainwave tone. Isochronic tones pulse at specific frequencies, and stimulate the brain to help you achieve your desired mental state. Unlike binaural beats, isochronic tones work through headphones or speakers. The isochronic tones are integrated into the backgrounds of beautiful, soothing melodies. Listen to the peaceful music while the tones automatically do their magic in the background. ________________________ Features - 5 categories: Relaxation, Sleep, Meditation, Stress and Anxiety, Mind Training - 40 brainwave entrainment sessions with dynamic isochronic tones - 60 soothing ambient sounds - 48 atmospheric music tracks (endless loops) - Universal app runs on iPhone, iPad and iPod touch - Saved soundscapes are synchronized using iCloud - Separate volume controls for every sound - Create customized sound mixes by combining ambient sounds together - High quality Retina graphics - AirPlay support - Multitasking support: play your favorite melodies while using other applications ________________________ 5 Categories With 40 Sessions - Relaxation: Quick relax ∙ Tension relief ∙ Lunch break relax ∙ After a busy day ∙ Relax before important event ∙ After high stress ∙ Before going to bed ∙ Deep evening relax - Stress and Anxiety: Quick stress relief ∙ Workplace stress relief ∙ Anxiety reduction ∙ Anxiety reduction before sleep ∙ Reduce anxiety before taking a test ∙ After work stress reduction ∙ Deep stress relief - Meditation: 7Hz Zen meditation ∙ Coffee break meditation ∙ Low-Alpha meditation ∙ Mid-Alpha meditation ∙ Theta meditation ∙ Delta meditation ∙ 7,83Hz Schumann rhythm meditation ∙ Deep Schumann rhythm meditation. - Sleep: Short anti-insomnia session ∙ Sleep induction ∙ Mental workers sleep support ∙ Hyperactive people sleep induction ∙ Sleep induction for insomniacs ∙ Clear your mind and fall asleep ∙ Deep sleep induction - Mind Training: Workout performance enhancer ∙ After-Workout recovery session ∙ Attention enhancer ∙ Mental workers support session ∙ Idea generation session ∙ Motivation enhancer ∙ Energy enhancer ∙ Creative tasks helper ∙ Concentration enhancer for studying ∙ Sensory-motor rhythm session. ________________________ 60 Ambient Sounds Birds ∙ Piano ∙ Cat ∙ City ∙ Clock ∙ Crickets ∙ Dolphins ∙ Fire ∙ Forest ∙ Frogs ∙ Heart ∙ Monk ∙ Music box ∙ Night ∙ Rain ∙ River ∙ Space ∙ Submarine ∙ Thunder ∙ Train ∙ Cave ∙ Water ∙ Whale ∙ White noise ∙ Wind ∙ Wind Chimes ∙ Jungle ∙ Flute ∙ African night ∙ Howling wolf ∙ Sea lion ∙ City park ∙ Lakeside ∙ Shopping mall ∙ Industrial ∙ Nightingale ∙ Spring birds ∙ Crowd ∙ Oscillating fan ∙ Swamp ∙ Dripping water ∙ Owls ∙ Tropical forest ∙ Factory ∙ PC fan ∙ Vacuum cleaner ∙ Fan ∙ Pirate ship ∙ Waterfall ∙ Fridge ∙ Pneumatic drill ∙ Waves ∙ Hair dryer ∙ Rain on window ∙ High Voltage ∙ Harbor ∙ Running water ∙ Winter blizzard ∙ Highway ∙ School If you have any questions or comments please don't hesitate to contact us at any time: [email protected]
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.