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.
Who's On-Soccer helps youth-soccer coaches manage who's on the field and who's going on next.
$5.99 · 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 Who's On - Soccer: map the core Sports 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: Limited team management features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can feel cluttered
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: Subscription pricing may deter users
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.
Who's On-Soccer helps youth-soccer coaches manage who's on the field and who's going on next. It has been developed for the iPhone and iPad with experienced coaches who find managing rotations and balancing play time awkward and stressful. Watch our feature videos at "http://whos-on.leftcoastlabs.biz/videos/soccer". What coaches have said about Who's On apps... "It's intuitive and easy of use." "It can handle all the unpredictability of coaching youth sports. For instance, I don't know who's going to be there [on game day] until I show up at the game. Players sometimes show up late or leave early. Young players decide at the last minute that they don't want to go on, messing up my planned rotation. This app allows me to handle all this... with ease." "I like how clearly each player's name, number and picture is presented on the screen. I have a lousy memory and remembering new player names at the start of a season is always a problem for me." "The 1-touch Position History is really well done... I wouldn't want to coach again without it!" "I love how easy it is to add player photos to the team." Feature Summary: Simple drag and drop - With Who's On-Soccer, you simply drag player icons from the "bench" to "field positions" as you make decisions for your starting lineup or substitutions. The app remembers "who" you've assigned "where" and tracks how long each player has been in each position during the game. 1-screen game information - All game-time information is displayed clearly on one screen (as shown in the screen shots). Bright yellow banners clearly indicate where you've pre-assigned substitutes for your next rotation. 1-button rotation - When it's time to make substitutions, you press one button to indicate that the subs have taken the field and the app records this event. The app then places the icons of the players coming off the field back on the bench ready for their next rotation assignments. Built-in substitution timer - A built-in timer can be used to balance rotation times. Press-and-hold play history (a unique and celebrated feature of Who's On-Soccer) – By simply dragging a player's icon to the bottom of the screen, the display will change to show a Position History (graphically indicating where the player has played and for how long). Hot-Cold Indicators - shows which players have significantly more or less play time than the average. Players with significantly more play time are highlighted red (Hot). Similarly, blue (Cold) for less play time. Simple score tracking – Tap the scoreboard and quickly add goals and record who scored and who assisted. All scoring information is automatically stored with the game for post-game review. Fast team setup - We've built Who's On-Soccer to allow you to enter a team's information quickly. Typically it only takes a few minutes to enter all your team's information. 1-touch player pictures - Capture player pictures with the app's integrated camera function. 1-touch, point and click. Multiple teams - If you coach or assist with two or more teams, this app supports multiple teams. Simply select the team you want to use from the team list and your ready to go. Flexible field formations - Who's On-Soccer supports any field formation. Changing field positions is just another drag and drop activity. You simply "unlock" the field, move, add or remove positions and then "lock" the field. The app will remember the last formation you used for each team you coach. Game / Practice schedules - Who's On-Soccer let's you store your team's schedule in your phone if you desire. Game data and notes - Use game notes to track pre-game thoughts and reminders as well as post-game comments. All game data is stored in the team's schedule as a completed game. Game stats can be reviewed at any time or sent to the team's record keeper via email. Supported platforms: - built for iPhone or iPod Touch - runs on iPad as iPhone app
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.