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
Memento Mori: Remember to Die
Memento Mori helps you see your life with perspective
$1.99 · In-app purchases
PRICE
$1.99
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.
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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/
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 Memento Mori: Remember to Die: 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 social sharing or community challenges.
Assumption to check: Users may find it hard to stay motivated without social features.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize quotes and reminder settings.
Assumption to check: Lack of personalization in reminders and quotes.
Validate with people who use this workflow before building.
Hypothesis 3
Provide insights on journaling habits and emotional trends.
Assumption to check: Limited analytics on user progress.
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
Memento Mori helps you see your life with perspective. It combines the long tradition of Stoic reflection with modern mortality research so you can live with greater intention. The app shows how your choices shape the time you have, and how small changes can shift the path ahead. Understand your current horizon: Enter your vitals, lifestyle, and environment to see an estimate of your remaining years, months, and days. The calculation is grounded in published studies on longevity and population health. See the effect of your habits: Track vices that shorten your life and virtues that extend it. Alcohol, sedentary time, stress, social connection, physical activity, volunteering, and more. Each metric is tied to scientific research so you can understand its real influence on your life expectancy. Keep mortality visible in daily life: Use the iOS Home Screen widget to place your remaining time where you will see it every day. A quiet reminder to stay focused on what matters. Build a daily reflection practice: Your dashboard presents your remaining time along with custom metrics that fit your life. Weekends left. Books to read. Games of tennis. Personal projects. The goal is not fear but clarity. Privacy by design: No account required. No tracking or analytics. Everything is stored on your device. Designed with intention: The interface is minimal and contemplative, shaped by the spirit of memento mori. Quotes and visuals encourage reflection without distraction. Memento Mori is not a medical tool. It is a way to look honestly at your time and use it well.
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
Supabase
@react-navigation/native
react-native-slider
react-native-modal
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.
