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.
LocationLab helps iOS developers and QA testers reproduce location scenarios on their own test iPhone
Free
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.
Your first Build Kit is free with a verified email.
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.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
LocationLab helps iOS developers and QA testers reproduce location scenarios on their own test iPhone. Search for places, enter exact coordinates or select points on the map to test stationary and moving locations. Features: • Paste multiple coordinates at once, review the parsed count, errors and preview, then confirm a temporary route. • Reorder favorites and saved routes; optimize route order, reverse routes and remove duplicate points. • Create, edit, import and share GPX routes; share plain-text coordinates, one point per line. • Petal Orbit and Ring Orbit patterns with adjustable radius and speed, and continuous or jump transitions between centers. • Share original centers, expanded paths or offset copies without modifying the original route. • Fixed or varying speed, point-to-point arrival pauses, continuous or jump-back loops, and random roaming with adjustable range and speed. • Remember the last selected position without automatically starting simulation on relaunch. • Stop testing and restore the real location. The free tier includes three successful location settings per local calendar day and a homepage banner, subject to consent and ad availability. Pro offers monthly, three-month and annual auto-renewable subscriptions with identical features: unlimited location settings, up to 500 favorites and 100 saved routes, route playback/orbits, random roaming and no banner while Pro is active. Prices are shown in the app. Eligible customers can start a 7-day free trial with Apple purchase confirmation; declining a subscription does not remove the daily free allowance. Restore Purchases and Manage Subscription are on the Pro page. After entitlement expiry, saved data is retained but new paid actions are blocked. A route already started with a valid entitlement may continue for up to 24 hours after its last verified expiry. This does not extend other Pro access, and stopping ends the allowance. Connection loss or system termination can still interrupt playback. Restore Real Location, pairing import and connection recovery are not subject to the daily quota. Requirements: • iOS 26 or later with Developer Mode enabled. • On iOS 27 or later, choose LL Pair to create a pairing file on the iPhone and send or export it. On iOS 26, or when choosing computer setup, connect to a Mac or Windows PC by USB and use the LocationLab Setup Assistant. The macOS release is notarized; Windows may show SmartScreen. • After initial device pairing, use Wi-Fi or follow the app’s built-in tunnel and brief manual Airplane Mode steps to create or rebuild the local connection. The computer is not needed after setup. • If the local connection has failed, follow the app’s reconnection guide before restoring the real location. LocationLab uses the iOS developer location-simulation workflow. Apple Maps and other Core Location apps may receive simulated locations. Pairing files, favorites and routes are processed locally; file sharing is initiated by the user. See the privacy policy for free-tier advertising data and choices. The app does not route general Internet traffic to developer servers. Before navigation, location sharing, emergency services or other safety-related activities, stop testing and confirm that the real location has been restored. Trials automatically renew at the selected plan price unless cancelled. To avoid charges, cancel at least 24 hours before the trial ends. Manage or cancel subscriptions in your Apple Account settings. Privacy policy: https://locationlab.net/privacy.html 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.
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.
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.