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.
Letters Never Sent
$2.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Letters Never Sent: map the core Lifestyle workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Lack of user engagement features like reminders or prompts
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited sharing options for letters
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficult navigation between different letters
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Absence of customization options for letters
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Letters Never Sent Every life contains conversations that never received an ending. The words we never said. The apologies we never heard. The people we still miss. The versions of ourselves we've outgrown. Letters Never Sent is a private journaling and guided reflection app created for those unfinished conversations. Whether you're writing to someone you've lost, someone you've loved, a friendship that ended, or your future self, this is a quiet place to process emotions, preserve memories, and reconnect with your story. There are no followers. No likes. No pressure to share. Just a private space for reflection, healing, and growth. Features Private Letters Write letters to anyone—or anything—that still lives in your heart. Save your writing, organize your reflections, and revisit them whenever you're ready. Guided Reflection Prompts Explore thoughtfully designed prompts covering grief, healing, forgiveness, self-compassion, closure, identity, relationships, and personal growth. Reflection Vault Keep all of your letters securely stored in one place. Search, organize, and revisit your reflections over time. Memory Dates Honor birthdays, anniversaries, losses, milestones, and meaningful moments with gentle reminders that allow you to remember at your own pace. Future Letters Write letters to your future self and choose when they will be delivered months or even years later. Daily Reflection Pause each day with simple mood check-ins and reflective journaling designed to help you notice patterns in your thoughts and emotions. Breathing Space Slow down with guided breathing exercises created to help you ground yourself before or after writing. Healing Paths Follow guided reflection journeys centered around: Grief Letting Go Forgiveness Self-Compassion Inner Child Reflection Personal Growth Closure Remembering Someone Release Ceremony When you're ready, mark a letter as released. Your words are never deleted—they remain safely preserved while honoring the act of letting go. Privacy First Your reflections belong to you. Private by default Optional passcode protection Secure local storage No public profiles No social sharing Created by Dr. Carmela Maxell Letters Never Sent was created by Dr. Carmela Maxell as a place for reflection, healing, remembrance, and personal growth. Whether you're navigating grief, processing change, celebrating milestones, or simply searching for words you never had the chance to say, this app provides a private space where your story can be written without judgment. Because healing doesn't always begin with answers. Sometimes it begins by finally saying what was never said.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.