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
GMLYFT Strength Tracker
GMLYFT is a premium strength training tracker built by lifters who take training seriously.
$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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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.
JavaScript is required to complete mailbox verification.
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 GMLYFT Strength Tracker: 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.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Incorporate more graphing features to visualize progress over time.
Assumption to check: Users find it difficult to track long-term progress visually.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to create custom workouts and routines.
Assumption to check: Limited workout variety and customizability.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear subscription details and easy management of plans.
Assumption to check: Subscription models can be unclear or hard to manage.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce social features for sharing achievements and challenges with friends.
Assumption to check: No social features to share progress or challenges.
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
GMLYFT is a premium strength training tracker built by lifters who take training seriously. This is not a social fitness app. This is not a subscription platform. This is not built for trends. GMLYFT focuses on structured programming, precise logging, and long term progress. If you train with intention, this was built for you. WHAT YOU CAN DO • Log weight and reps with a focused, distraction free interface • See exercise defaults and full session status at a glance • Track what is next in your workout • Use a built in plate calculator for accurate bar loading • Adjust, extend, or skip rest timers • Plan training days and assign exercises across multiple days • Set default weights, reps, and set counts before sessions start • Review workout history, notes, and performance trends • View progress reports over time • Trigger a discreet call style exit when needed PRIVATE BY DESIGN Your data is stored locally by default. Creating an account is optional and only used if you choose to enable manual cloud backup. There are no ads. There are no tracking tools. There are no subscriptions. Pay once. Train for years. GMLYFT is built for lifters who value discipline over noise. Terms of Use: https://www.gmlyft.com/terms Privacy Policy: https://www.gmlyft.com/privacy
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
react-navigation
react-native-svg
react-query
Zustand
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.
