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
SkinCycler
SkinCycler is a private skincare-routine tracker for iPhone
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 SkinCycler: 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 push notifications for reminders.
Assumption to check: Users often forget to follow their skincare routine.
Validate with people who use this workflow before building.
Hypothesis 2
Introduce product categorization and tagging.
Assumption to check: Difficulty organizing and managing multiple products.
Validate with people who use this workflow before building.
Hypothesis 3
Add community features for sharing routines.
Assumption to check: Limited social interaction features.
Validate with people who use this workflow before building.
Hypothesis 4
Implement progress tracking and analytics.
Assumption to check: Users may find it hard to track skincare progress.
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
SkinCycler is a private skincare-routine tracker for iPhone. Build the routine you actually do — not the one a brand wants you to do — and let your phone keep the schedule straight. Plan AM and PM steps across the week, scan products to log them in seconds, and get gentle reminders when it's time to start. Everything lives on your iPhone. No account. No cloud. No tracking. — BUILD A ROUTINE THAT FITS YOUR WEEK — • Create separate AM and PM routines, or any custom routine you want • Drag and drop steps to set their order • Use Pattern Cycle routines for actives that rotate by day (think: retinol on Tuesdays and Thursdays, exfoliant on Sundays) • Drag to reorder the days inside a Pattern Cycle so it matches your real schedule — SCAN YOUR PRODUCTS — • Scan a barcode and SkinCycler looks up the product name and brand for you • Add anything that doesn't scan by typing the name in • Rate each product 1–5 stars so you remember what's actually working • Search your library to find a product in two taps — REMINDERS THAT RESPECT YOUR TIME — • Set times for your morning and evening routines • Add custom reminders for one-off steps — masks, treatments, anything on a different cadence • All reminders run locally on your phone. No server, no push from us, no tracking that you opened them — TODAY, AT A GLANCE — • Today view shows what's due, when, with the steps you've planned • Swipe between routines, or open the "Everything" view to see the whole day in one place • Collapse sections to keep things tidy — PRIVATE BY DESIGN — SkinCycler doesn't have accounts, doesn't sync to the cloud, and doesn't include analytics, advertising, or crash-reporting libraries. Your routines, products, schedules, and notes are stored only on your iPhone, in app-private storage. Delete the app and they're gone. The only time SkinCycler reaches the internet is when you look up a product barcode — and even then, only the numeric barcode is sent to public product databases. Nothing else. Full privacy policy: https://skincycler.com/privacy Support: https://skincycler.com/support
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
react-navigation
@react-native-async-storage/async-storage
expo-image-picker
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.
