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
Time@Location – Time Tracker
Time tracking that handles itself.
$3.99 · In-app purchases
PRICE
$3.99
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 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.
// RORK SYSTEM PROMPT
Rork plan preview for Time@Location – Time Tracker: 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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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.
Hypothesis 1
Focus on a streamlined onboarding process and intuitive UI.
Assumption to check: Users often find time tracking apps cumbersome and not user-friendly.
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear and interactive analytics with charts.
Assumption to check: Difficulty in analyzing time data due to lack of visual representation.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce features for tracking repeated tasks or locations.
Assumption to check: Limited features for recurring time tracking.
Validate with people who use this workflow before building.
Hypothesis 4
Ensure smooth cloud sync for data persistence.
Assumption to check: Users struggle with syncing data across devices.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Time tracking that handles itself. Set up your locations once — office, home, client sites, wherever matters — and forget about it. Time@Location detects every arrival and departure automatically using geofencing in the background. No tapping. No timers. No forgotten entries. Automatic. Always. The app runs silently in the background 24/7, even when your phone is in standby. Arrival and departure times are recorded the moment they happen. Mileage log without the hassle. Connect to CarPlay and your drive starts recording automatically. Disconnect and it stops. Your route appears in the app instantly, complete with distance driven. GPX and KML export ready for tax and expense reports. AI assistant for your data. Ask questions about your own records: "How much time did I spend at the office this month?" or "Which week had the most drives?" — answered on-device from your real data. Multiple devices, one dataset. Optional iCloud sync keeps iPhone and iPad in sync automatically. Only one device records at a time — the other switches to view-only mode automatically. Your data stays yours. No account. No subscription. No sharing. All data remains in your iCloud account or exclusively on your device — your choice. Export reports as PDF or CSV — ready for your tax advisor, employer, or your own records.
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
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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.
