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
RECO - 4K VIDEO & FILM FILTER
RECO is Video Camcorder
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.6
7 ratings · Below Average
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 included18 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 RECO - 4K VIDEO & FILM FILTER: 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
Simplify the editing interface with clear icons and tooltips.
Assumption to check: Users often find video editing apps complex and overwhelming.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a smooth real-time filter preview feature.
Assumption to check: Many apps lack good filter previews.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize loading times and use efficient algorithms for filter application.
Assumption to check: Users experience slow performance during video processing.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance stability by thoroughly testing export functionality.
Assumption to check: Frequent crashes during video exports.
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
RECO is Video Camcorder that combines digital camera and film sensitivity. - Real-time 4K video filter Apply 35mm film filter to your video - Pause function with real time effect - Take a video while listening to music Music does not stop while filming. Try filming a music video cover dance video Air pods / Bluetooth speaker ■ 4K / FULL HD Video Record ■ Pause/Re-record function while shooting ■ Real-time transition effect when pause & resume ■ PRO : Date Print On Video (Real Time) ■ 35mm film filters from Kodak, Fuji, Agfa ■ Does not stop playing music while recording ■ High Definition Video Live Filter main function : - Realtime filter video (35mm film filter) - Digital zoom 4x (up to 4x magnification) - Fuji, Kodak, Agfa 36mm film filter (black and white filter) - Self mode - EXIF data storage (including position data) - Timer and flash function - Grid mode view Terms of Use : https://han.gl/A3qyv Privacy Policy : https://han.gl/N13tv
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
expo-av
Shadcn/UI
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.
