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.
This tennis score keeper app exclusively for the Apple Watch offers an intuitive score tracker for friendly or competitive gameplay
$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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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 Tennis - Score Keeper: 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 for score tracking and statistics
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor user interface and experience
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No support for different scoring systems
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.
This tennis score keeper app exclusively for the Apple Watch offers an intuitive score tracker for friendly or competitive gameplay. Tennis – Score Keeper app is designed keep track of Your Match Score, Set Score, Game Score, Server and Serve Side during gameplay, as well as keeping the History of all matches played. Using simple gestures on the tennis court image, you can swipe left or right when a point is scored, tap to change serve side (Optional), and double tap to change server (Optional). Once initially synced the app automatically updates after each point, and game. A long press locks the screen to prevent inadvertent scrolling. The app has setup options to allow you to customize your gameplay from professional rules to casual “Best Of” matches. In casual mode choose best of games, from 1-7 and even infinity. (Stop the game at any time to tally up the score) Pro Score Mode allows you to choose Games per Set (2-10, or Infinity) A tiebreaker mode with official rules of who is serving and to which side and the option to choose how many tiebreak points (1-10). Sets per Match (1,3,5,7 and 9 or infinity), played as Best Of. And a + 1 tiebreaker set is optional depending on the rules you play. At any time, you can stop the game to tally the current points, particularly if you are playing with an Infinity set point. If you’re in a match and win or lose and want to keep it going “Play on” allows you to add more sets to the match in pro mode or switch to unlimited in pro or casual game play. There is also a “Game Score Mode” that allows you to swipe for games vs points for big picture score keeping. A History of each match is kept under the “History” button, individual matches can be deleted with a swipe, or the whole history cleared using the “Delete All” Button. Factory Reset does not clear the history or the workout information but resets all the settings. Additionally, Apple Health is integrated to keep track of your workout, and displays current Heart Rate, Active Energy, Distance and Workout Time (pending your authorization). These workout sessions can also be accessed from your connected IOS devices under the Apple Health App. A tutorial in the app shows how to interact, and what each setting does. A Local Notification is sent if you are in a workout but haven’t logged a point in a user defined amount of time, this helps remind you if you are heading home but forgot to end the match. There are NO external notifications (as in, you won’t get notifications unrelated to an active workout, nothing to annoy you). Apple Health Integration: You have the option to confirm the apps access to health parameters and allow the app to log “Tennis” as a workout activity. You can deny this access to any feature or parameter. You can also choose at any time to go into the Apple Health App and remove access. Alternatively, you can deselect “Save Workout” within the app, so that you can view the health data without saving the workout. For More information read “Privacy Policy” link provided. If you have any suggestions or issues, feel free to contact me through the “Support Link” provided. I would really appreciate any feedback! Most of the updates from 2.1 to 2.3 have come from suggestions by users, and 2.8 was specifically made to update the tap to change serve function that one user found frustrating if it was accidentally pressed during a match. If there is anything you would like to see… just ask!
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.