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.
How We Feel is a free app created by scientists, designers, engineers, and therapists to help people better understand their emotions and find strategies to help them navigate their emotions in the moment
Free · 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 How We Feel: 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: Users may forget to check in daily
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited mood analysis features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User engagement may drop over time
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.
How We Feel is a free app created by scientists, designers, engineers, and therapists to help people better understand their emotions and find strategies to help them navigate their emotions in the moment. Conceived in conjunction with Yale University's Center for Emotional Intelligence and based on the work of Dr Marc Brackett, How We Feel helps people find the right word to describe how they feel while tracking their sleep, exercise, and health trends using HealthKit in order to spot patterns over time. Founded as a science-based nonprofit, How We Feel is made possible by donations from people who are passionate about bringing mental wellbeing to the widest possible audience. Our data privacy terms are clear and easy-to-understand: all of your data is kept on your device unless you opt-in to send an anonymized version of your check-ins to be used in research to help more people. Whether you are downloading this app in order to build better relationships, make your emotions to work for you, not against you, improve how you handle stress and anxiety or simply to feel better, How We Feel will help you identify patterns through daily HealthKit tracking and find emotional regulation strategies that will work for you. The How We Feel friends feature allows you to share how you feel with the people you trust most in real time, strengthening your most important relationships. Filled with step-by-step video strategies you can do in as little as one minute on themes like "Change Your Thinking" to help you address negative thought patterns with cognitive strategies; "Move Your Body" to express and release emotions through movement strategies;"Be Mindful" to gain perspective and minimize the negative impact of misunderstood emotions with mindfulness strategies; "Reach Out" to build intimacy and trust, two important tools for emotional wellbeing, with social strategies.
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.