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.
The Treadmill Logger iPhone/iPad app is a fantastic tool to help you keep track of your treadmill sessions
$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.
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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 Treadmill Logger: 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 features compared to other fitness logging apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No integration with health tracking devices
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic user interface
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent data syncing
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.
The Treadmill Logger iPhone/iPad app is a fantastic tool to help you keep track of your treadmill sessions. With this app, you can easily monitor your calories burned, fat calories burned, distance, and laps. You can also view your Month-to-Date, Year-to-Date, and Life-to-Date totals. The app's summary feature allows you to drill down your data by years, months, and days. Additionally, you can use the map course that has been set up to track your distance progress. The course starts in Miami, FL, takes you through Salt Lake City, UT, Seattle, WA, Bangor, ME, and back to Miami, FL, covering a total of 8288 miles or 13,338 kilometers. You can view where you are on the map as you go and zoom in and out of your current location. The Treadmill Logger app provides users with a great way to stay motivated on the treadmill. With the app's screen shots, you can see how it has been used for over six years to help people stick to their fitness goals. This app provides users with the motivation to keep going, as it's common for people who make a New Year's resolution to get in shape to quit after only three months. With the Treadmill Logger app, you have the tools to keep you going, and after six years, users are still motivated to reach the halfway mark on the course. If you have any comments, suggestions, bug reports, or requests for this app, please don't hesitate to send us an email. We value your feedback and strive to provide you with an app that meets your needs.
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.