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.
Kept Notes is a fast, friendly notes app for people who want simple capture without giving up control of their data.
$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.
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Combine features and design from your favorite apps.
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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 Kept Notes: 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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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: No offline mode
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Sync issues
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Feature bloat
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.
Kept Notes is a fast, friendly notes app for people who want simple capture without giving up control of their data. Apple Intelligence-powered Smart Capture: Using natural language you can entirely manage your notes - create, update, share, label, archive, and trash notes while keeping AI processing local and private on supported devices. Jot down a thought, make a checklist, save a link, attach a file, add an image, sketch a quick doodle, or set a reminder — all in a clean, colorful notes experience designed to stay out of your way. Kept is built around the idea that your notes should belong to you. Connect to your own Kept instance and keep your notes, uploads, reminders, labels, and settings on infrastructure you control. What you can do with Kept: • Create text notes, checklists, image notes, drawings, and file attachments • Pin important notes so they stay at the top • Organize with labels, colors, and background images • Save links and generate rich link previews • Attach PDFs, documents, ZIP files, and other useful files • Set reminders for things you do not want to forget • Search quickly and filter by note type, label, or date • Share notes with other users on your instance • Import notes from Google Takeout • Export your notes when you need a copy • Use backups to protect your data Kept is designed to feel lightweight and familiar: open it, capture the thing, move on. No clutter. No heavy project-management system pretending to be a notes app. Just quick notes, visual organization, and ownership. Important: Kept Notes requires access to a Kept server/instance. You can self-host Kept using Docker or a native install. Setup instructions are available at www.keepitkept.xyz.
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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.