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.
Tend is a habit tracker that doesn't make you feel bad.
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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 Tend - Habits Worth Keeping: map the core Productivity 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: Users struggle with tracking long-term habits effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Habit tracking can feel monotonous over time.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulties in customizing habits and reminders.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited social features.
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.
Tend is a habit tracker that doesn't make you feel bad. Miss a day? Your streak survives. Skip a Sunday? It's fine. Tend is built on a simple idea: consistency is hard enough without your app shaming you for being human. GRACE DAYS The streak-killer feature, killed. Configure 0 to 3 forgiving days per habit. Tend protects your streak quietly so a bad week doesn't erase a good month. NO SUBSCRIPTION, NO ACCOUNT Tend is $0.99 once. No "Pro" tier, no upgrade nags, no email signup. You open the app and start. PRIVATE BY DEFAULT Your habits sync between iPhone, iPad, and Apple Watch through your own private iCloud. We have no servers. No analytics. No email list. The optional AI coach uses Apple Intelligence on-device, so nothing leaves your phone. FLEXIBLE SCHEDULING • Every day, weekdays, or weekends • Specific days (Mon/Wed/Fri, your call) • X times per week (any 3 days, whatever fits) • Every N days • A specific day of the month WHEREVER YOU ARE • Interactive widgets — tap a habit on your Lock Screen, it's done • Apple Watch — check off habits without picking up your phone • Apple Health — auto-complete habits when workouts, mindful sessions, steps, or sleep data match • Calendar (optional) — see today's events alongside today's habits YOUR DATA, ALWAYS YOURS Export your full history to CSV or JSON, anytime. Take it and walk away — Tend doesn't trap you. GENTLE INSIGHTS A weekly summary narrated by Apple Intelligence (when available). See your best days of the week. Compare current and longest streaks side by side. Trends, not pressure. Build consistency, one day at a time. With a little grace. — Made with care by Largent Labs.
Written user reviews are not shown here. Check current App Store reviews >
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.