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
DayBar
Transform your iPhone or iPad home screen with DayBar — a beautifully designed widget app that shows the current date, time, and shape of your day in layouts that feel crafted, not default.
$0.49 · In-app purchases
PRICE
$0.49
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.
Build your own version
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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Make it yours Optional
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 DayBar: map the core Business 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 a feedback system to gather user experiences.
Assumption to check: Lack of user reviews and feedback
Validate with people who use this workflow before building.
Hypothesis 2
Focus on simplicity and ease of use.
Assumption to check: Overwhelming features in many productivity apps
Validate with people who use this workflow before building.
Hypothesis 3
Offer customizable task views and priority settings.
Assumption to check: Poor task organization and prioritization options
Validate with people who use this workflow before building.
Hypothesis 4
Add visual progress indicators and reminders.
Assumption to check: Difficulty in tracking task completion
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
Transform your iPhone or iPad home screen with DayBar — a beautifully designed widget app that shows the current date, time, and shape of your day in layouts that feel crafted, not default. See more than the clock. DayBar's smart progress bar tracks where you are in your day based on a schedule you configure. Set your own start and end times, pick which weekdays are active, and watch the bar fill as your day moves forward. Designed to be glanced at. Every DayBar layout is built around one principle: readable in under a second. Strong typographic hierarchy, clean alignment, and generous spacing mean you never have to squint at your home screen. Make it yours. Choose from seven themes — dark, light, and cool — and three medium widget layouts (Default, Editorial, Minimal). A live preview updates instantly as you change any setting, so you always see exactly what your widget will look like before you leave the app. Private and local. No account. No server. No subscription. All your settings live on your device. Features: Small and medium WidgetKit widget sizes Three medium layout styles: Default, Editorial, and Minimal Seven themes: Nocturnal, Paper, Deep Sea, Ink Navy, Violet Dusk, Ember, and Arctic Configurable day start and end time Weekday-specific progress schedule Show or hide the progress bar Live preview while you customise Space Grotesk type for display; monospaced digits for stable time readout
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
react-native-paper
TypeScript
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.
