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.
ClimbUp turns every floor you climb into kilometers across the solar system
$1.99 · 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 ClimbUp - Stair Counter: 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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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
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited motivation tools
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor data visualization
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No integration with health data
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.
ClimbUp turns every floor you climb into kilometers across the solar system. Start at Sea Level, cross the Karman Line, reach the Moon, push on to Mars, Jupiter, Saturn — and beyond, all the way to Voyager 1. Most fitness trackers stop at the Moon. ClimbUp keeps going. THE JOURNEY • 8 destinations from Sea Level to Voyager 1 • Real-time ETA at your current cadence ("You're 217 days from Mars.") • Pulsing current-segment marker, gold checkmarks for stops you've passed • 20 mission-patch achievements modeled after NASA crew patches LIVE CLIMB • Edge-to-edge workout mode with hero-scale floor counter • Real-time heart rate, steps, kcal, pace • HKWorkoutSession-backed — properly logged to Apple Health APPLE WATCH • Single-glance dashboard: today's floors at a glance • Start a stair-climbing workout directly from your wrist • Live floors + heart rate during the climb WIDGET • Small + medium widgets on the Home Screen • Today's floors, current destination, segment progress, ETA — all in the same Mission Control aesthetic PRIVACY-FIRST • Raw HealthKit samples stay on your device • No separate account — social features use your existing Game Center identity • Leaderboards, Squads, and PK share derived floor counts only, never heart rate, calories, or raw HealthKit samples CLIMBUP+ • 7-day free trial, with monthly and yearly plans shown before purchase • Personal mission forecast — next destination, ETA, cadence, and weekly momentum • Full 20-patch achievement set — unlock every premium mission patch • Progress review — compare this week and month against your prior pace • Leaderboards, Squads, and weekly PK when you want the social layer Cancel anytime · Auto-renews · Standard iTunes Terms apply Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage and cancel subscriptions in your Apple ID Account Settings after purchase. Privacy Policy: https://henryarch.github.io/climbup/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.