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.
More infos at gps-tracker-tool.de (support url).
$6.99 · 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.
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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 GPS Tracker Tool: 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 capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Subscription model confusion
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inaccurate location tracking in some areas
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of customization options
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.
More infos at gps-tracker-tool.de (support url). WHAT IT'S NOT - You can NOT track other phones with this app! This is a "remote control" for one of the dedicated hardware GPS trackers from the list of compatible models. - You cannot send SMS from iPod/iPad devices. However, you can still use the LIVE tracking features. MAJOR FEATURES - app will draft SMS commands for you - no need to carry around the tracker's manual - built-in compass for off-road navigation to tracker location - offers cell triangulation as fallback - reverse geocoding - administration of multiple trackers - visual set-up of geo-fence - configurable unit system (mi, km/h – m, ft) - quick commands = easy accessible custom commands - in-app purchases to enable the LIVE tracking features for some models: Trip history, trip start & end alerts, speed alert, geo fences, KML export INCOMING SMS You just copy the whole incoming SMS and switch to the app. It will then try to match it against known formats. All data can then usually be visualized on the map. Please understand that iOS DOES NOT ALLOW to intercept incoming SMS automatically! Some tracker models can be monitored via the internet. SUPPORTED TRACKER MODELS Anywhere (TK 108), Asta (EV07S*), ELRO (GPS1), Concox (GT02, GT011, GT 100), Incutex (TK 5000*, TK 104, TK 105*, TK 106, TK 116), meitrack (VT 310 v6, VT 310 v7), PAJ* (Allround, Easy, Gold, Motorcycle, Mini, Personal, Power, Professional), Simvalley (GT 60, GT 170, GT 280), TKstar* (Bike, 720, 816 OBD, 901, 905, 909, 915), Toplovo (TL 202), Wonde Proud (SPT 10, VT 10), Xexun* (TK 101, TK 102, TK 102-2, TK 102v6, TK 103, TK 103-2, TK 104, TK 106, TK 201, TK 201-2, TK 202, TK 203, TK 206, XT 009) * InApp live tracking via Internet for these models possible. After you made the tracker connect to the server, the feature can be activated with an InApp purchase. Model names might not always be unique amongst manufacturers, so if your tracker came with a manual, you can check for compatibility here: https://gps-tracker-tool.de/compatibility/ (see also support-url) KNOWN PROBLEMS - Please note that while you can send iMessages, you cannot send SMS from an iPad or iPod and therefore you would have very limited functionality on these devices. Still, an iPad would be a good choice for the LIVE tracking part. - Since iOS 10, short messages which contain links will be broken up into two. This makes copying a whole message impossible. You might have to miss out on the app's ability to visualize an incoming message from certain trackers. (If you experience any problem or have a feature request, please send us an e-mail. You find the address in the app's help section.)
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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.