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
SimpleStep: Step Counter
Your steps, without the clutter.
$0.99 · In-app purchases
PRICE
$0.99
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 included
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
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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.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Your steps, without the clutter. SimpleStep is a simple iPhone pedometer that shows today’s steps, walking and running distance, and goal progress at a glance. Look back at your activity with weekly, monthly, and yearly charts. No ads. No account. No tracking. One purchase, with no subscriptions or in-app purchases. WHAT YOU CAN DO • View today’s and past days’ steps, distance, and goal progress • Swipe to move between days and chart periods • Review weekly, monthly, and yearly step charts • See totals and averages for steps and distance • Tap a weekly chart bar to view that day’s activity • Set a daily goal from 1,000 to 30,000 steps in 1,000-step increments • Show today’s steps on the app icon badge with notification permission • Receive a silent goal notification once per day • Choose light, dark, or system appearance • Choose from seven accent colors and seven app icon colors IPHONE-RECORDED ACTIVITY SimpleStep reads Steps and Walking + Running Distance from Apple Health. Only records created by your iPhone are included. Apple Watch data, manual entries, and records written by other apps are excluded. Health data is read-only and stays on your iPhone. SimpleStep does not send your health data to an external server. Distance is displayed in kilometers. Step badges and goal notifications update when you open or return to the app, or when HealthKit delivers a background update. They do not update continuously while the app is closed. REQUIREMENTS An iPhone running iOS 18 or later. Languages: English and Japanese.
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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
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
