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
RePT- Reverse Pyramid Training
RePT is a minimalistic app for logging your progress in the gym.
$15.99 · In-app purchases
PRICE
$15.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
124 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 included16 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 RePT- Reverse Pyramid Training: 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
Introduce a wide range of exercises and user-defined routines.
Assumption to check: Limited exercise variety and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Add features for social interaction and challenges.
Assumption to check: Lack of community features for support and motivation
Validate with people who use this workflow before building.
Hypothesis 3
Enhance progress tracking with detailed analytics and insights.
Assumption to check: Inconsistent progress tracking
Validate with people who use this workflow before building.
Hypothesis 4
Offer more value in subscription plans with additional features.
Assumption to check: High subscription cost relative to feature set
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
RePT is a minimalistic app for logging your progress in the gym. It was mainly built upon a Reverse Pyramid Training routine written by Martin Berkhan. But after a lot of feedback, I decided to make it more customizable. You are free to customize RePT to work with whatever routine you want! RePT includes some really sweet features such as: Workout Logging Workout Timer Notifications Warmup Helper Workout Rules and Patterns Plate Calculation Exercise Notes AMRAP (As many reps as possible) .. and more to come! If you want to read about the RPT protocol that the included routine is based on you should give the leangains site a visit: https://leangains.com/reverse-pyramid-training-guide/ Thanks for using RePT!
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 Navigation
Zustand
React Native Reanimated
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.
