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
SubWatch - Manage Your Subs
Stop overpaying for subscriptions you forgot about.
$4.99
PRICE
$4.99
No 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.
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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
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Combine features and design from your favorite apps.
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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 included
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.
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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 SubWatch - Manage Your Subs: map the core Finance 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
Single-screen dashboard with key metrics
Assumption to check: Complex, confusing interface
Validate with people who use this workflow before building.
Hypothesis 2
Use Plaid for instant linking
Assumption to check: Slow bank connections
Validate with people who use this workflow before building.
Hypothesis 3
Biometric auth + 2FA prominently displayed
Assumption to check: Security concerns
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
Stop overpaying for subscriptions you forgot about. SubWatch gives you a clear picture of every recurring charge so you always know what you're paying, when it renews, and whether it's still worth it. No account required. Everything is stored locally on your iPhone. WHY SUBWATCH? • See Your True Monthly Cost — One glance shows your total monthly and annual subscription spending. No surprises. • Never Miss a Renewal — Set reminders days before each subscription renews. Cancel or keep, your choice, on your timeline. • Spending Analytics — Visual breakdown by category (Entertainment, Productivity, Cloud, Music, Gaming). Know where your money goes. • Quick Setup — Choose from popular services like Netflix, Spotify, Disney+, ChatGPT, YouTube, Adobe CC, and more. Or add any subscription manually. • AI Savings Suggestions — Spot overlapping services and hidden waste so you can trim what you don't need. • Natural Language Entry — Describe a subscription in plain words, and the AI fills in the details automatically. • 6-Month Spending Trends — See how your monthly spend has changed so you can stay ahead of creeping costs. • Multi-Currency Support — Track in USD, EUR, GBP, CNY, JPY and more. • Beautiful Dark Interface — Designed for comfortable use day or night. PRIVACY FIRST SubWatch is local-first: your subscriptions live on your device — no accounts, no cloud sync, no tracking, no ads. Optional AI features (natural language entry, savings suggestions) only run after you explicitly opt in and can be turned off anytime in Settings. PERFECT FOR • Anyone juggling Netflix, Spotify, iCloud, gym memberships, and more • Budget-conscious users who want to cut unnecessary recurring costs • People tired of surprise charges on their credit card SubWatch is a one-time purchase, no subscription needed to track your subscriptions. Download SubWatch today and finally take control of your recurring expenses.
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
Plaid API
Supabase
RevenueCat
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
