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
y2k: 2000s photo editor
step into the y2k era where flip phones, digicamfx, and overexposed selfies ruled the internet
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
7,800 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.
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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's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 y2k: 2000s photo editor: map the core Photo & Video 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
Offer more diverse and unique filters.
Assumption to check: Limited filter options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Enhance app stability and performance.
Assumption to check: Occasional crashes during heavy photo edits
Validate with people who use this workflow before building.
Hypothesis 3
Simplify purchase flows and clearly explain benefits.
Assumption to check: In-app purchases can be confusing for users
Validate with people who use this workflow before building.
Hypothesis 4
Introduce cloud saving for user projects and edits.
Assumption to check: No cloud backup for user edits
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
step into the y2k era where flip phones, digicamfx, and overexposed selfies ruled the internet. y2k: 2000s photo editor gives your pics that raw, nostalgic look of early digital cameras and old-school collages. we’re not about hyper-polished perfection. edit your photos with vintage effects, collage layouts, and stickers straight out of the 2000s. every tool is designed to make your photos look effortlessly authentic, like they were taken on a 3.2mp digicam in your best friend’s bedroom. features: • vintage camera effects & filters inspired by old digicams • create unique profile pictures of your OC • add aesthetic collages & rant backgrounds • stickers & overlays to give that tumblr feel • adjustable film grain, blur, and glow • add lyrics and text to your images we also have an optional subscription to unlock all premium filters and stickers. this isn’t just a photo editor app, it’s a time machine. from dreamy flash shots to grungy lo-fi edits, y2k lets you recreate the feeling of digging through an old digital camera’s memory card. y2k is for anyone who misses the era of pixelated charm, chaotic collages, and flash-lit mirror selfies. ready to make your feed look like 2006? open y2k, drop a photo, add your effects or collages, drag stickers, and download your photo. all processing happens on your device. no ads. just pure nostalgia. ---- Privacy Policy: https://www.y2kapp.com/privacy-policy Terms of Service: https://www.y2kapp.com/terms-of-service
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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
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React Navigation
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.
