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
Night Web Browser by Alex
*Top 5 Best Web Browsers for iPhone* /iMore.com
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.5
45 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 included16 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 Night Web Browser by Alex: map the core Utilities 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
Enhance the feature set with tabbed browsing and extensions.
Assumption to check: Limited features compared to full-fledged browsers
Validate with people who use this workflow before building.
Hypothesis 2
Focus on user feedback to improve usability and performance.
Assumption to check: Low user ratings indicate dissatisfaction
Validate with people who use this workflow before building.
Hypothesis 3
Optimize the web view for better compatibility.
Assumption to check: Inconsistent performance on some websites
Validate with people who use this workflow before building.
Hypothesis 4
Integrate VPN or advanced privacy options.
Assumption to check: Lack of privacy features like VPN
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
*Top 5 Best Web Browsers for iPhone* /iMore.com Night Web Browser by Alex is THE ONLY web browser that lets you DIM 100% of your screen, including the keyboard, status bar, web videos like YOUTUBE and INSTAGRAM, Facebook etc. Do you think that your iPhone's/iPad's screen is too bright when you look at it in the dark? Night Web Browser allows you to surf the web in the dark without disturbing the one next to you and without straining your eyes. Perfect for you who love doing some browsing before sleep without the risk of waking the one next to you because of the bright iPhone screen. Night Web Browser lets you dim the screen including the keyboard to even less brightness than the minimum standard iPhone/iPad setting. You can simply access the brightness control whenever you want with just one tap in the browser. NOTE THAT ONLY CONTENTS IN THE WEB BROWSER CAN BE DIMMED, NOT THE ENTIRE iOS! Features: - Brightness control/Darkness boost - Night mode with warmer color temperature - Search instantly in the address field and choose from search results that instantly appear as you type -Choose your Google language in settings - Swipe for back/forward navigation like in Safari - Tabs - Bookmarks - Modern minimal design - 64-bit support If you'd like more features please don't write a bad review. It does what it was meant to and extremely well. Instead send me a tweet at https://twitter.com/NightWebBrowser with your suggestions and I will give them consideration for the next update :) Thanks for your support and we hope you enjoy Night Web Browser by Alex. Visit our twitter for free support: https://twitter.com/NightWebBrowser
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
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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.
