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
Progressive Alarm Clock
Progressive Alarm Clock will wake you up gently and gradually using the beautiful sounds of the Tibetan singing bowl
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
3,057 ratings · Top 15%
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 Progressive Alarm Clock: map the core Health & Fitness 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
Allow users to create custom alarm sounds and more flexible snooze options.
Assumption to check: Limited alarm customization options
Validate with people who use this workflow before building.
Hypothesis 2
Integrate with calendar to set alarms based on events.
Assumption to check: No integration with calendar apps
Validate with people who use this workflow before building.
Hypothesis 3
Add social features for sharing alarm sounds or challenges.
Assumption to check: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 4
Enhance snooze functionality with customizable durations and smart snoozing.
Assumption to check: Poor snooze management
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
Progressive Alarm Clock will wake you up gently and gradually using the beautiful sounds of the Tibetan singing bowl. At the specified alarm time, the bells will begin to ring in a pre-defined pattern - starting out softly and slowly and gradually getting louder and more frequent. You'll come out of your slumber slowly and peacefully. No more being jolted awake. + After setting the alarm, the app can be put in the background - allowing you to use other apps. At the specified alarm time, the alarm pattern will begin. + Choose from five pre-defined patterns with varying bell schedules and escalation lengths. + Choose from six different bells of varying size and metal compositions - from bright and clean to deep and complex with lovely overtones. + You may enter journal notes upon awakening - great for recording your dreams before the memory fades. You can then go back and review your journal entries and you may export the journal via email. For privacy, you may set a password to prevent unauthorized access. + To save battery, you may lock your device's screen and the alarm will still work. Either start the alarm and press the lock (sleep) button, or turn on the "Auto-Lock" setting. + This app uses the same amazing bell sounds used in our Insight Timer meditation timer. Here are some app store comments pertaining to the bells: "Best sounding bells of any meditation app so far" - sibergrrl "The bell samples in this app are gorgeous" - LairBob "Several different bell sounds to choose from and they all feel 'live'" - VaderPi "Great Sound Quality" - KarlAgathon "The tones are stunning" - hellsleeve "Beautiful bell sounds" - Wolf94114 "Wonderful digital bell sounds" - zenji "The bell sounds are lovely" - pngwen Other Features: - Snooze from 1 minute to 30 minutes - Sure Wake: Optional LOUD backup sound - Seven colors available for time display - Optionally keep phone from sleeping - Huge landscape time display - App works even when phone is sleeping (locked)
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
react-navigation
react-native-sound
expo-permissions
Zustand
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.
