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.
Steppa helps you stay active through fun, motivating step challenges with real rewards.
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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 Steppa - Step Challenges: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Steppa helps you stay active through fun, motivating step challenges with real rewards. Join a challenge, stay consistent, and qualify for a share of the prize pool when you complete all goals.* There are no penalties or charges for missing goals. If you don’t finish a challenge, you simply don’t qualify for the payout. HOW IT WORKS • Join a challenge with a fixed entry fee • Complete the daily step goals • Qualify for a payout from the shared prize pool • Track your steps directly through Apple Health FEATURES Step Tracking • Apple Health integration • Real-time step updates • Progress charts and trends Challenges • Daily, weekly, or multi-day formats • Fair and transparent rules • Prize pools based on total entries • Clear qualification requirements Wallet • Secure card payments • View challenge earnings • Track past results Community • Join with friends • Compare progress • Stay accountable together WHY IT WORKS Steppa turns movement into a commitment. Set a goal, stay consistent, and earn a reward when you finish the challenge successfully. SAFE & SECURE • No penalties for missed goals • Bank-level payment security • Steps verified through Apple Health *Steppa does not charge users based on individual performance or missed goals. Entry fees are for joining challenges only, and users who do not complete all goals simply do not qualify for the prize pool. Apple Inc. is not a sponsor of, and is not involved in any way with, Steppa challenges. Apple does not endorse, administer, or provide any prize for any challenge, and has no responsibility for any challenge or for any prize paid out. Steppa challenges are run solely by Steppa LLC. The full official rules are available in the app at any time under Profile → Legal → Official Rules. TERMS OF USE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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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 often find step tracking inaccurate
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited social features for competing with friends
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Subscription paywall can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No integration with health apps like HealthKit
Validate with people who use this workflow before building.
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.