App Overview

TapFlow: BJJ Timer & Drills icon

TapFlow: BJJ Timer & Drills

Igor Radovanovic · Sports

Master your mat time

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
1 ratings · Top 5%

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.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

Screen plan

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.

Differentiate and validate

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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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
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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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

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

Allow users to customize drill parameters more extensively.

Assumption to check: Limited personalization options for drills

Validate with people who use this workflow before building.

Hypothesis 2

Implement options to share training results or drills with friends.

Assumption to check: No social sharing features

Validate with people who use this workflow before building.

Hypothesis 3

Introduce a freemium model with basic features accessible for free.

Assumption to check: Subscription model might deter some users

Validate with people who use this workflow before building.

Hypothesis 4

Simplify the design and navigation for a cleaner experience.

Assumption to check: User interface may feel cluttered

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

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.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
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zustand
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BUILD KIT DIFFICULTY
Starter

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.