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.
Do you ride with an app like Bosch eBike Flow, Garmin Connect, or Wahoo? Flow Sync imports your FIT files directly into Apple Health, effortlessly.
$0.99 · 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 Flow Sync - Cycling to Health: 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: Limited social features for motivation and competition
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of workout variety and customization
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inadequate integration with wearables
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can be overwhelming for beginners
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.
Do you ride with an app like Bosch eBike Flow, Garmin Connect, or Wahoo? Flow Sync imports your FIT files directly into Apple Health, effortlessly. — IMPORT YOUR CYCLING SESSIONS Flow Sync reads your FIT files and adds them to your Apple Health history in seconds. Power, cadence, heart rate, speed, elevation, GPS route: all your cycling data is preserved and available in the Health app or the Fitness app. Flow Sync also imports the heart rate recorded during your ride, whether it comes from a chest strap, a sensor built into the bike, or any other accessory compatible with your e-bike. — CREATE OR ENRICH Two import modes to fit your needs: • New workout — Flow Sync creates a complete cycling workout in Apple Health from your FIT file, with all available data series. • Enrich an existing workout — Already have a workout in Health (logged manually, via Apple Watch, or another app)? Flow Sync injects the missing data from the FIT file: power, cadence, GPS route, and more. — SUPPORTED DATA Flow Sync imports all data available in your FIT file: • Power (watts) • Heart rate (bpm) • Cadence (rpm) • Speed • Cycling distance • Elevation and elevation gain • Full GPS route • Calories (calculated from power) • Pauses and resumes — FIT COMPATIBLE Flow Sync is compatible with FIT files generated by major connected cycling apps, including Bosch eBike Flow. — SIMPLE AND FAST Open your FIT file from the Files app, from the Bosch eBike Flow app, or any share sheet — Flow Sync handles .fit file association. A few taps, and your ride is in Apple Health. No account, no sign-up, no subscription. Flow Sync respects your privacy: your data never leaves your iPhone.
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.