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.
Have you ever wanted to maintain your bike yourself?
$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.
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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 Bike Doctor - Easy bike repair and maintenance: map the core Sports 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 guides available compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent UI across different screens
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of interactive features for users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline access to guides
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.
Have you ever wanted to maintain your bike yourself? Bike Doctor 2.0 has been created to make bicycle maintenance as simple as possible. Not everyone is a technically minded bike mechanic. Sometimes, reading the instructions for a bike repair, it can feel that way. That's why we've designed Bike Doctor to be as easy to follow as possible. Making it suitable even for a complete beginner. It is an app I wish I had available to me, when I first started cycling. Using the step by step instructions you will: ◆ Save money on bike shop repairs (Even a simple puncture repair in a bike shop costs upwards of $15) ◆ Know how to detect problems ◆ Repair any issues that arise, such as squeaks and poor performance ◆ Learn how to safety check your bike to be sure it is always ready to ride ◆ Keep your bike running smoothly for years to come Inside the Bike Doctor app you'll discover: ◆ How to repair and prevent punctures ◆ How to detect if your brake pads are worn out and replace them (Including Disk Brakes) ◆ How to clean your bike ◆ How to lubricate your bike ◆ The 7 rookie bicycle maintenance mistakes you should avoid ◆ How to adjust your headset ◆ How to wrap handlebar tape ◆ How to adjust your gears ◆ How to true a bicycle wheel ◆ How to fit a new chain and rear cassette(A very common yearly repair!) ◆ How to bleed disk brakes ◆ How to remove and replace a bottom bracket ◆ How to replace brake and gear cables ◆ And that's just scratching the surface! We've got all the most common repairs in the app and we're constantly asking for feedback from users of our app to discover what repairs they would like added - and then adding these in. Bike Doctor 2.0 is the new version of the original best-selling Bike Doctor. The original version has been downloaded over 10,000 times and received coverage in some of the most popular cycling magazines including Bicycling and Cycling Plus. The Bicycle is the ultimate in independence - learn how to keep yours maintained and in tip-top condition to insure it is always ready to get you to your destination! Here are some of the many 5 star reviews we've received: "I'm over the moon with this app I read somewhere about truing wheels and it said don't bother unless you are a pro, but I've just sorted my wheels out a treat. The app paid for itself straight away." "Great app, worth every penny saved money on a service already !!!!" "This is a good App for the keen cyclist, as a Cytech technician I recommend this App." "Excellent application with some nice clear photos. Explanations are concise but personal, the writer has a passion for cycling and it shows, which makes for a refreshing experience." "Very comprehensive explanations, great photos, easy to use." Bike Doctor has been created by Andreas Kambanis of London's most popular cycling blog: londoncyclist.co.uk. For a video of the Bike Doctor App in action please head to bikedoctorapp.com
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.