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.
Pregnancy support that actually meets you where you are.
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 Obi by Dr. Sterling: map the core Medical 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 integration with wearables for tracking health metrics
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be overwhelming with too much information
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase process can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of personalized recommendations based on health data
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.
Pregnancy support that actually meets you where you are. Pregnancy comes with endless questions, 3am worries, and a healthcare system that wasn't built to give you the time or answers you deserve. Obi was created by board-certified ObGyn Dr. Noa Sterling to change that. As both an OB and a mom, Dr. Sterling experienced firsthand the gap between what women need during pregnancy and what they actually get. Every part of Obi is designed to fill that gap — so you feel informed, supported, and cared for at every stage. Because good pregnancy support shouldn't just sound reassuring. It should actually help. Inside the app, you'll get: Ask Obi — Your ObGyn-Powered AI Stop Googling. Ask Obi instead. Get trusted, evidence-based answers to your real pregnancy questions — any time of day or night — grounded in Dr. Sterling's clinical expertise. Whether you're wondering if your symptoms are normal or navigating a hard decision, support is always within reach. Weekly, Personalized Pregnancy Content Access hundreds of expert articles, videos, and bite-sized education tailored to exactly where you are in your journey. From TTC through postpartum, the right information arrives exactly when you need it — no searching required. WellBeing Tools Built for the Pregnant Brain Neuroscience-backed mindfulness tools designed to stop worry spirals before they start. Simple, calming, and actually usable at 2am. Community You'll Actually Want to Be Part Of Connect with a private community of science-minded women who get it. Ask questions, share experiences, and find your people — no judgment, just honest pregnancy conversation. Built for Every Stage TTC, pregnancy, postpartum, or navigating loss — Obi meets you where you are, with content and support that evolves with your journey. Obi users report: 96% feel more confident in their pregnancy decisions 93% say Obi's AI reduced their anxiety 89% use Dr. Sterling's WellBeing tools daily SUBSCRIPTION PRICING AND TERMS Try Obi free for 7 days. After your trial, choose the plan that works for you — monthly or annual — both of which give you full access to all app features and content for the duration of your active subscription. Payment will be charged to your account at the end of your free trial. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You may manage or cancel your subscription at any time in your Account Settings. Terms of Service: https://members.sterlingparents.com/terms Privacy Policy: https://sterlingparents.com/pages/privacy-policy
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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.