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.
App Overview
My Workout+
Whether you are looking to gain strength, increase your cardio or just improve your lifestyle, My Workout+ is the exercise tracking app for you.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
868 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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.
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.
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
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for My Workout+: 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
Create a more integrated dashboard that combines both functionalities.
Assumption to check: Users find it difficult to navigate between workout and nutrition logs
Validate with people who use this workflow before building.
Hypothesis 2
Include a customizable exercise library with user-generated content.
Assumption to check: Limited exercise library
Validate with people who use this workflow before building.
Hypothesis 3
Integrate a social component allowing users to share workouts and progress.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Clarify subscription tiers and benefits within the app interface.
Assumption to check: In-app purchase confusion
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
Whether you are looking to gain strength, increase your cardio or just improve your lifestyle, My Workout+ is the exercise tracking app for you. As featured on • Good Morning America • DailyBurn • AskMen • Mens Health Macrosinc.net My Workout+ is the only workout tracking app made by a fitness professional! We are proud to bring you the complete workout tracking solution. My Workout+ brings your workout tracking notebook to the 21st century providing you with great features such as: 550+ Preset Exercises & the ability to create your own Saved workouts Makes tracking workouts even faster Help for beginners Instructional videos along with text to make getting started easy Rest Timer Stay on top of your workout and know when it’s time to get back after it Track advanced aspects of your workout Things like RPE, Volume, Supersets are all available to track right in the app Everything is customizable You can add custom exercises or customize those right in the app already to make the app truly your own —Rest Timer + iOS 16— Keep a rest timer to know when it's time to get your next set. • With iOS 16 that will start a live activity to show your time left right no your lock screen + with the iPhone 14 Pro it will also show up in the dynamic islandw —Reach Your Goals— Get alerted when you hit milestones like new PRs (personal records) View your history and how much you’ve done in each rep range —Track Cardio Too— Keep track of your history in your cardio exercises as well Track your cardio exercises duration & difficulty to get an estimated calories burned —Dark Mode Support— We fully support dark mode. —Apple Watch App— Track your entire workout straight from your wrist with our Apple Watch app. Terms of Service: getmymacros.com/t.html
Written user reviews are not shown here. Check current App Store reviews >
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
Supabase
react-native-chart-kit
expo-camera
@react-navigation/native
BUILD KIT DIFFICULTY
Intermediate
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.
