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.
Most health apps bury you in numbers, charts, badges and noise
$3.99
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.
Your first Build Kit is free with a verified email.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Silent.: 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.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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 session variety may lead to user boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social features for community engagement.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of personalized recommendations based on user behavior.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline access to sessions.
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.
Most health apps bury you in numbers, charts, badges and noise. Silent does the opposite. It's a calm, black-and-white tracker built for one thing: helping you stay consistent without the clutter. You log what matters in a couple of taps, glance at your trends, and get on with your day. Logging is fast. Add calories and macros in a single entry, or track water, weight, steps and sleep just as quickly. Save the meals you eat often and re-log them with one tap. Steps and sleep can fill in automatically from Apple Health, so there's less for you to do by hand. Your home screen is yours. Show only the cards you care about and hide the rest, so the dashboard stays quiet and focused on the day in front of you. When you want the bigger picture, your stats are split into a clean day view, longer-term trends, and a personal AI coach that reads your own habits and offers genuinely useful guidance — never spam. It goes where you go, too: Home and Lock Screen widgets, a Control Center shortcut, and a Live Activity that keeps today in view. And it stays private. There's no Silent account and never will be — everything syncs through your own iCloud, with no ads, no tracking and no subscriptions. One purchase unlocks every feature, for good. Silent is for people who want to track their health and then forget about the app. Quietly in your corner, never in your way.
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.
Not assessed in a Build Kit yet.
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.