App Overview

Mr Smooth Pro icon

Mr Smooth Pro

Swim Smooth Ltd · Health & Fitness

Meet Mr Smooth and Miss Swinger - two freestyle (front crawl) stroke animations showing you great stroke technique! Watch the animations just before going for a swim to help you visualise improving your own technique ...

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.5
13 ratings · Top 15%

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

// RORK SYSTEM PROMPT
Rork plan preview for Mr Smooth Pro: 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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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 create custom workouts and save them.

Assumption to check: Limited workout customization options

Validate with people who use this workflow before building.

Hypothesis 2

Introduce social features to share achievements and workouts.

Assumption to check: No social sharing features

Validate with people who use this workflow before building.

Hypothesis 3

Add gamification elements to keep users motivated.

Assumption to check: Lack of engaging content

Validate with people who use this workflow before building.

Hypothesis 4

Standardize UI elements for a more cohesive experience.

Assumption to check: Inconsistent user interface

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

Meet Mr Smooth and Miss Swinger - two freestyle (front crawl) stroke animations showing you great stroke technique! Watch the animations just before going for a swim to help you visualise improving your own technique for faster and more efficient swimming. If you struggle with any part of your stroke from swallowing water to low sinky legs to developing your catch, then this insightful tool will be invaluable to you. Features include: - 8 viewing angles including directly overhead and underneath - Slow motion, pause and frame by frame forward/rewind* - Remove the water from view for extra clarity - Control of swimming speed (strokes per minute) - Synchronised views across all angles (so you can pause and see that same position from any angle) - Two fundamentally different but efficient styles of stroke, select the one that best suits you as an individual * Hold your finger on the screen to bring up the jog wheel and rotate it to speed up or slow down the animations. Or when paused, rotate the jog wheel to forward and rewind frame by frame This extensive app also includes three full articles on using the animations to improve your technique and a full comparison of the two stroke styles on view - 'The Swinger' and 'The Smooth'. Find out why each one is a great stroke technique and how to make it work best for you. About Swim Smooth: Swim Smooth is an innovative coaching company focusing on improving your individual stroke technique based on your height, build, gender and swimming experience. We have coaching bases in Australia and the UK, and in 2011 we were selected by British Triathlon to write their swimming coaching curriculum. All triathlon coaches in the UK now follow our swim coaching methods. Find out more about us at https://www.swimsmooth.com

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Screenshots

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Define the first version

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Set boundaries

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

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

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BUILD KIT DIFFICULTY
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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.