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.
PlaceTrack is a modern, cross-platform, full-featured location journaling and sharing app, available for iPhone, Apple Watch, and other platforms, and also offering compatibility with Car Play
$5.99 · 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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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 PlaceTrack: map the core Navigation 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: Limited offline functionality
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Occasional inaccuracies in traffic data
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No customizable settings for navigation preferences
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.
PlaceTrack is a modern, cross-platform, full-featured location journaling and sharing app, available for iPhone, Apple Watch, and other platforms, and also offering compatibility with Car Play. It keeps a history of your locations 24/7 with almost no impact on battery life, capturing data on speed, course, altitude, and user activity. Additionally, its optional sharing features allow you to track your loved ones, monitor their travelling speed, get directions to their current location, and view street-level images of any place they are or they have been. You can also overlay and compare your location or your contacts' locations against a GPX track. This can be imported from files, Strava, or Apple Watch workout routes, as the app integrates seamlessly with HealthKit. In short: - personal location journaling h24 - Apple Watch and CarPlay compatibility - context data: location data can include location history, speed and course, altitude, whether you’re walking, running, moving in a vehicle or resting - Healthkit/Apple Watch and Strava integration for GPX import - optional safe location sharing with the people you trust, in real time - GPX merge, map overlay and export - POIs (Point of Interest) support and sharing - live data: force a contact’s device to immediately send a fresh location - passive and battery friendly: run in the background with no noticeable impact on battery life, location is periodically updated as the device moves - you are in control: set who sees your current location or who has access to your location history with fine-grained access controls Other features: - excellent battery usage: PlaceTrack uses SLC mode (Significant Location Change) and region monitoring, NOT continuous background. PlaceTrack is suspended in the background most of the time and is woken up only when you move significantly (detected using cell towers signal); most of the time it just sleeps and the GPS hardware is powered off to preserve battery. Install the app and forget about it - save your location history for later viewing - optionally share your recent location or location history with authorized PlaceTrack contacts - forced contact location updates: you can ask for a live location update from a contact and the backend platform will silently ask your contact device for a new location update - delayed sync: stores your locations when network is unreachable and pushes them to the PlaceTrack servers when you're back online - in-app streetview images - track overlays: import route data from Apple Watch, Strava and GPX files - location sharing works using address book phone numbers: your phone number is authenticated through an sms code on your first activation - your data, including your phone number and location, is always sent on a secure connection (ssl) and is never shared with any third party
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.