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
FFEEDD
Wake up, Neo...
$9.99 · In-app purchases
PRICE
$9.99
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.
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Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 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.
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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 FFEEDD: map the core Lifestyle 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
Implement advanced filtering and recommendation algorithms to enhance discoverability.
Assumption to check: Users often struggle with finding relevant content.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their feed layout and prioritize content.
Assumption to check: Personalization features are often limited.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear explanations of subscription benefits and a smoother purchase experience.
Assumption to check: In-app purchase process can be unclear.
Validate with people who use this workflow before building.
Hypothesis 4
Create intuitive management tools for easier feed organization and prioritization.
Assumption to check: Users face difficulty in managing multiple feeds.
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
Wake up, Neo... Introducing the quickest and best-looking notes app for iPhone. Record your ideas fast in over 50+ gorgeous authentic bitmap fonts and endless color schemes, in the classiest writing interface ever made - a blinking cursor on a black screen. I built this app for myself because I truly couldn't find a notes app for the phone that immediately opened up to a new note, and looked good. Then I re-watched The Matrix, and I realized I had to make a terminal journal. But then I found these extremely high quality pixel fonts and had to do them justice, and got way too carried away and ended up making an app so top-tier it's easily worth than this. If you can't afford it, email me [email protected]. FFEEDD is a minimalist journal for anyone tired of the same old app design.. anybody who needs a place outside of their main to-do list to collect their beautiful weird little ideas.. or anyone who their grocery list in neon orange pixel typography. And FFEEDD is 100% completely private. Your journal is stored locally on your device. No cloud sync. No user accounts. No contact list requests. No data leaves your phone. Ever. Nobody can see your entries. And it's open-source, so the core app code files are available on our website below for anyone to inspect. $9.99. Once. Forever. No free tier. No surprise subscription. No premium unlock. No "upgrade to keep your entries." You pay once. You own it. Less than one month of the other guys — and it's yours for life. We will be moving to subscription soon, so anyone who downloads now will be locked in free for life. —— 50+ AUTHENTIC RETRO FONTS Real bitmap fonts from real machines. IBM EGA. Commodore. Chicago. Kaypro. Press Start 2P. We sourced them from the archives at int10h.org — the same fonts that glowed on CRTs in 1985. Pick your favorite. Heart the ones you love. ENDLESS COLORS Unmatched aesthetic. Long-press any entry to cycle through. Or dial in your own with HSB sliders and hex input. Your journal, your palette. CHECKLISTS, NUMBERED LISTS, DASH LISTS Type [ and space to automatically create a checklist item. Tap to check it off — strikethrough and all. Totally inline and slick. YOUR FEED Every entry, color-coded, in a clean reverse-chronological feed. Pin the ones that matter. Tap to edit. EXPORT Share entries as text, or an image, or export a typing video — a 9:16 pixel grid reveal of your words appearing letter by letter. Made for your story. Made for TikTok. Made for the aesthetic.
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
Expo
Zustand
React Navigation
Supabase
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.
