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.
Splitwatch is a specialized timing application that gives the serious track/swimming coach or fan a powerful interval stopwatch on their iPhone, iPod touch, or iPad.
$2.99 · 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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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 Splitwatch: 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 features for advanced timing needs
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Basic user interface design
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 cloud backup for data
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.
Splitwatch is a specialized timing application that gives the serious track/swimming coach or fan a powerful interval stopwatch on their iPhone, iPod touch, or iPad. FEATURES: - Designed especially for track and swimming training and competition but is also effective for any event where interval recording is needed. - Automatically calculates the split breakdown as you are timing. For example, if set for 200m intervals would yield each 200m, 400m, 800m, and 1600m (or 1000m if in Kilo split mode) throughout the race. - Provides closing splits (for example, last 200, 400, 600, 800, 1000) and split summary info with Min, Max, and Avg lap times. - Quickly identify which parts of a race were the fastest or slowest with Split Detail Summary Min/Max Highlighting (New!). - Record either Metric or English interval distances: 25, 50, 100, 200, or 400 meters or 25, 50, 110, 220, or 440 yards, or Lap mode for distance independent timing. - Time any number of competitors simultaneously with the Multiwatch mode, starting the watches at the same time or independently. - Quickly recall any recorded timing event in the History view, including athlete name, event name, race start date and time, final time, lap times, split breakdown, closing splits, and split summary info (Min, Max, and Avg lap). - Sort timing events by date, event distance, event name, or athlete name. - Individual splits are fully editable, including add, change and delete. Also, you can change the base units and split modes for any event in your database. This makes it easy to fix timing glitches. - Email or AirPrint (New!) a Split Report with all the event info and split breakdown right from Splitwatch. Generate reports for a single race or combine multiple races in one report and then email or print to any AirPrint compatible printer. - Tap the Splitwatch main time display to swap the running time with the lap time. - Flashes each time the start/lap/stop buttons are hit for positive click feedback. - Optionally produces a click sound for each start/lap/stop tap. - Optionally disables the lap button for 2 seconds to prevent unintentional double-clicks. - Lap mode allows you to record events where the intervals are not tied to a specific distance. - Furlong mode is for horse racing. Distances are displayed in fractions of a mile instead of yards. - Onboard manual and email support for your questions.
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.