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.
Fasted is a premium intermittent fasting companion for iPhone and Apple Watch
$4.99 · 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.
Kit ready. Verify your email to download it.
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 Intermittent Fasting - Fasted: 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: Lack of customization for fasting plans
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited progress tracking features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic user interface design
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.
Fasted is a premium intermittent fasting companion for iPhone and Apple Watch. It tracks your fast, your eating window, and your hydration — all day long. No subscription. No account. No data collected. Fasting and eating window tracking Choose from four preset plans — 14:10, 16:8, 18:6, or 20:4 — or create your own custom schedule. Start your fast and a Live Activity on your Lock Screen and a Dynamic Island countdown keep you informed without opening the app. When your fast ends, the eating window countdown begins automatically. Know your numbers A detailed statistics screen tracks your current streak, longest streak, adherence rate, average fasting duration, and more. Every metric includes an explanation of what it measures and how it's calculated — so you always understand what you're looking at, not just what the number is. On-device AI reads your week's data and writes a plain-language insight about your progress. Powered by Apple Intelligence. No cloud. No server. Fully private. Full hydration tracking Set a daily water target — or let Fasted calculate a goal based on your profile. Log intake throughout the day, see your progress in real time, and get a pace projection so you know if you're on track to hit your goal. Consistency metrics track your hydration habits over time, and optional notifications remind you to drink before the day slips away. Everything syncs with Apple Health. Siri and Shortcuts Just say "Start my fast with Fasted" or "Log 250ml of water in Fasted" — on iPhone or Apple Watch. App Intents cover the full range of daily actions and work seamlessly with the Shortcuts app. Everywhere you need it Interactive widgets let you track and control fasting and water intake from your Home Screen or StandBy. A fully redesigned Apple Watch app covers fasting, hydration, and metrics. Complications keep your fasting status and water progress visible on any watch face without opening the app. Apple Health Fasted writes completed fasts and water intake to Apple Health. It reads your sleep hours and resting heart rate as context for the AI insight — making the analysis smarter without any data leaving your device. The philosophy One-time purchase. No subscription. No in-app purchases. No ads. No account required. Your data stays on your device and in your private iCloud — never on any server.
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.