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 Personal Challenge
Ready to feel more balanced, focused, and energized every day? My Personal Challenge helps you build routines that actually stick — one mindful action at a time.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
6,184 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 included18 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 My Personal Challenge: 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
Implement a feature for users to create and share custom challenges.
Assumption to check: Limited challenges available for users to join, leading to boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Add detailed analytics and historical data representation.
Assumption to check: Inability to track progress over time effectively.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce a social feed for sharing updates and achievements.
Assumption to check: Social engagement features are lacking, making it less competitive.
Validate with people who use this workflow before building.
Hypothesis 4
Clarify the benefits of premium features more effectively.
Assumption to check: Subscription model may be unclear to users.
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
Ready to feel more balanced, focused, and energized every day? My Personal Challenge helps you build routines that actually stick — one mindful action at a time. GROW THROUGH DAILY CHALLENGES Turn small steps into powerful habits. Explore guided challenges designed to help you stay consistent, focused, and motivated. Whether it’s yoga, pilates, walking, or mindful movement — each program helps you reconnect with your body and enjoy steady progress. YOUR SPACE FOR CONSISTENCY No pressure, no rush — just progress you can see. Keep track of your completed sessions, note your reflections, and watch how routine becomes second nature. MINDSET MEETS MOVEMENT Physical change starts in the mind. Our reflective tasks and short mindset practices help you build confidence, reduce procrastination, and create lasting balance between body and mind. LEARN & STAY INSPIRED Discover practical wellness insights and educational reads that help you understand what truly drives your motivation. Every piece of content is crafted to support real, long-term growth. BEGIN YOUR PERSONAL CHALLENGE Take your first step today toward a healthier, calmer, and more mindful version of yourself. Get My Personal Challenge PREMIUM to unlock all challenge programs, reflection tools, and exclusive insights. Subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage your subscription anytime in your Apple ID settings. Privacy Policy: https://myfitchallenge.app/v2/en/privacy-policy Terms of Use: https://myfitchallenge.app/v2/en/terms-of-service Contact our team via https://mypersonalchallenge.zendesk.com/hc/en-us/requests/new for assistance
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
@supabase/supabase-js
react-native-chart-kit
react-native-gesture-handler
react-native-reanimated
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.
