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.
Master your mat time
$9.99 · 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 TapFlow: BJJ Timer & Drills: 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 personalization options for drills
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Subscription model might deter some users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface may feel cluttered
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.
Master your mat time. Dominate every round. TapFlow BJJ is a training timer and progress tracker built for grapplers. Create custom rounds, run classes smoothly, log sessions, and track your consistency over time. Whether you’re drilling solo, coaching a class, or preparing for competition, TapFlow gives your training structure. Built for Grapplers Modular Round Timer Create any round format: work/rest intervals, EMOMs, shark tanks, positional rounds, and custom multi-stage sessions. Training Analytics Track total mat time, session frequency, streaks, and progress trends so you can train with intent. Quick Drill Library Start fast with ready-made BJJ timers for conditioning, technique work, and flow rolling. Coach-Friendly Class Control Save timers for warm-ups, drills, and sparring rounds so you can focus on coaching, not the stopwatch. Mat-First UX High-contrast, glanceable design with clear cues for transitions and round changes. Ideal For - Solo grapplers who want structured off-day training - BJJ coaches running efficient classes - Competitors who need precise, repeatable rounds Simple Pricing One-time purchase. Lifetime value. No subscription. No ads. No nonsense. Download TapFlow BJJ and train smarter every session.
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.