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
Subpilot - Cancel Subscription
Take Control of Your Subscriptions with Subpilot.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
6,077 ratings · Top 15%
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 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.
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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 Subpilot - Cancel Subscription: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Take Control of Your Subscriptions with Subpilot. Never lose track of your monthly subscriptions again. Subpilot is your personal subscription manager that helps you monitor, organize, and cancel unwanted subscriptions - saving you money every month. Track All Subscriptions in One Place: Add unlimited subscriptions from Netflix, Spotify, gym memberships, and more. View total monthly and yearly spending at a glance. Get insights into your subscription habits with detailed analytics. Easy Cancellation Guides: Step-by-step cancellation instructions for 500+ popular services. Stop wasting money on forgotten subscriptions. Download Subpilot today and take control of your recurring payments! Terms of Use: https://legal.getsubpilot.finelo.com/terms Privacy Policy: https://legal.getsubpilot.finelo.com/en/privacy Please note: Access to the app requires a subscription. Some content may also require additional one-time purchases.
Written user reviews are not shown here. Check current App Store reviews >
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 notification reminders for upcoming payments.
Assumption to check: Users often forget about subscriptions they signed up for
Validate with people who use this workflow before building.
Hypothesis 2
Provide direct links and step-by-step guides for cancellation.
Assumption to check: Difficulty in canceling subscriptions directly through the app
Validate with people who use this workflow before building.
Hypothesis 3
Add a dashboard feature showing total monthly spending and trends.
Assumption to check: Lack of visibility on total spending across subscriptions
Validate with people who use this workflow before building.
Hypothesis 4
Expand to support more payment methods for better tracking.
Assumption to check: Limited payment method integrations
Validate with people who use this workflow before building.
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.
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BUILD KIT DIFFICULTY
Advanced
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.
