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.
Kina is your AI beauty coach who really gets your look
$24.99 · 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 Kina: AI Glow-Up Friend: 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 often find meal logging tedious.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Motivation can drop after initial use.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited exercise variety can lead to boredom.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription pricing can deter new users.
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.
Kina is your AI beauty coach who really gets your look. Over time, she learns your features, style, and preferences — remembering what makeup, colors, and techniques work best on your face. Whether you’re getting ready for a night out, refreshing your daily routine, or exploring new looks, Kina gives you honest, personalized advice for your glow up. HOW IT WORKS Download the app, meet Kina, and get an instant AI analysis of your face shape, best features, color season, and skin radiance. Then, hop on a live video chat — Kina gives real-time feedback as if you were getting ready with a beauty-savvy best friend. Kina keeps track of what looks you’ve tried, what you’ve loved, and what’s most flattering for your unique features, all inside your personal beauty journal. WHAT KINA CAN DO FOR YOU Tailored makeup routines based on your face shape, eye shape, and unique features Personalized suggestions that evolve as Kina learns your look and preferences Honest feedback on outfits and hairstyles Smart color analysis to pinpoint your most flattering shades and tones Skincare check-ins and product recommendations that fit your routine Celebrity lookalike + style inspiration customized for your features A beauty journal that remembers what works best for you Real-time conversations that feel like a GRWM with your best friend Daily affirmations and style notes to boost your confidence inside and out Your glow-up journey isn’t one-size-fits-all — and Kina never treats it that way. She helps you understand your own unique beauty, remember what works best for you, and refine your look over time. Note: Kina is not a medical professional and does not provide medical advice. All suggestions are for beauty and style guidance only — please consult a licensed professional for medical concerns. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.