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
Spa Spartan Lite
Keep a clear record of your spa care without relying on memory.
$0.99
PRICE
$0.99
No 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 included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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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Free quick prompt For a smaller starting point
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
Keep a clear record of your spa care without relying on memory. Spa Spartan Lite is an on-device maintenance log for portable spas and hot tubs. Record water tests, chemical additions, routine care, and important events, then review the history when something changes. KEEP A USEFUL HISTORY • Record sanitizer, pH, total alkalinity, and calcium hardness readings. • Log chemical additions, filter cleaning, cartridge changes, water changes, heavy use, and other maintenance. • Review recent activity and pH, alkalinity, and sanitizer trends. • Keep the chemistry context attached to earlier water tests when your setup changes. STAY AHEAD OF RECURRING CARE • Create reminders for filter care, water changes, cartridges, cover care, and other recurring tasks. • Optionally receive one local daily summary when enabled reminders are due or overdue. • Notifications are off by default and scheduled on your device. KEEP A BACKUP YOU CONTROL • Export a JSON backup and restore it later. • Restore checks preserve your current history as recovery data before replacement. • There is no account or built-in cloud sync. EXPORT FOR AI ANALYSIS Spa Spartan Lite can organize your saved spa profile, summary counts, recent reading trends, the latest five water tests, the latest five chemical additions, the latest five maintenance events, and active care reminders into a text summary. The summary is created on your device. Spa Spartan Lite does not contain or connect directly to an AI service, and nothing is sent automatically. You decide whether to copy or share the summary and choose the destination. Spa Spartan Lite is a recordkeeping and reminder tool, not chemical dosing advice. Follow product labels, spa and test-kit manufacturer instructions, and qualified pool or spa professional guidance. Do not mix chemicals unless product directions explicitly say it is safe.
Written user reviews are not shown here. Check current App Store reviews >
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
Intermediate
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.
