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
Dry Night Tracker
Dry Night Tracker is a simple, private way to log nights, track patterns, and understand progress over time.
$3.99 · In-app purchases
PRICE
$3.99
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
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A product spec, screen plans, and build steps for your coding agent.
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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 Dry Night Tracker: 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
Incorporate community challenges and rewards for milestones.
Assumption to check: Limited motivation features leading to user disengagement
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set custom goals and receive tailored reminders.
Assumption to check: Lack of personalization in tracking goals
Validate with people who use this workflow before building.
Hypothesis 3
Implement detailed insights and charts to visualize progress over time.
Assumption to check: Inadequate analytics for progress tracking
Validate with people who use this workflow before building.
Hypothesis 4
Add features for users to share achievements on social media.
Assumption to check: No support for social sharing
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
Dry Night Tracker is a simple, private way to log nights, track patterns, and understand progress over time. Whether you’re building new nighttime routines, supporting someone you care for, or simply want clearer insight into habits and trends, Dry Night Tracker provides a calm, non-judgmental space to log results, review streaks, and see progress at a glance. Key Features • Log dry and accident nights with a simple tap • Track helpful habits like bathroom visits before bed • View clear charts and trends to spot patterns over time • Optional reminders and milestone celebrations • Apple Health integration (optional) • Strong privacy controls, including Face ID and iCloud sync All data stays private and under your control. Entries are stored securely on your device or in your personal iCloud account. Dry Night Tracker is designed to be gentle, focused, and distraction-free — with no accounts, no ads, and no tracking. You can also export your data as a CSV for personal review or sharing with a healthcare professional, if you choose. Private by default. Gentle by design.
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.
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BUILD KIT DIFFICULTY
Starter
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.
