App Overview

Speedometer: MPH Tracker icon

Speedometer: MPH Tracker

Orin Light Limited · Navigation

GPS Speedometer is an intelligent speed measurement application based on high-precision satellite positioning technology, suitable for various scenarios of car, bicycle, motorcycle, running, and ship travel

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
800 ratings · Top 15%

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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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/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Speedometer: MPH Tracker: 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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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

GPS Speedometer is an intelligent speed measurement application based on high-precision satellite positioning technology, suitable for various scenarios of car, bicycle, motorcycle, running, and ship travel. It can display the current speed in real time, record the travel trajectory and provide speeding warning function. Designed for drivers, cyclists and explorers, it is the perfect companion to help you monitor the speed accurately and safely. Professional car speedometer | bicycle speed measurement | motorcycle speed measurement | running speed tracking | driving record | speeding alarm **GPS Navigation & Speedometer** 1. Whether you're driving, cycling, or using it as a head-up display, this app reliably provides GPS speedometer, odometer, and trip tracking. It supports speed units such as miles per hour (mph) and kilometers per hour (km/h). 2. Offers accurate GPS navigation and a real-time digital speedometer, helping you confidently track your speed and trip. It uses advanced GPS positioning technology to display your current speed, distance traveled, and trip data in a clear and easy-to-read interface. **Accurate speed measurement, safe travel** GPS speedometer uses satellite positioning technology to provide you with real-time speed measurement for various transportation scenarios such as cars, motorcycles, running, bicycles, mountain bikes, and ships. It has a low error rate and is more accurate than traditional speedometers! **Core functions** **Multi-mode speed measurement** - Classic dashboard (simulates real speedometer) - Digital large screen display (supports KMH/MPH/KNOTS unit switching) - HUD head-up display (projected to windshield at night, safe driving) - Map navigation mode (real-time track recording, anti-lost) **Professional driving analysis** - Automatically generate trip report: maximum speed, average speed, driving distance, altitude change - Historical track playback **Intelligent safety warning** - Customized speeding alarm (voice/vibration reminder) - Fixed speed camera prompt (location service needs to be turned on) - Rapid acceleration/rapid deceleration warning **Applicable in all scenarios** - Car speed measurement - Motorcycle/electric vehicle speed measurement - Bicycle meter (riding speed & mileage statistics) - Running pace calculation **Why choose us? ** **High-precision positioning**: multi-satellite system (GPS) joint positioning. **Speed ​​limit alarm**, safety assistance: customizable speed threshold, trigger voice or vibration reminder when speeding. **Ultra-low power consumption**: support background continuous speed measurement **HUD mode: speed can be projected onto the windshield when driving at night, reducing line of sight deviation and facilitating night viewing. Download now to experience professional-level speed measurement tools! If you subscribe through Apple, your App Store account will be charged at confirmation of purchase. - Payment will be charged to your iTunes account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Account will be charged for renewal 24 hours prior to the end of the current period, and identify the cost of the renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://thespeedgps.com/GPSSpeedPrivacyPolicy.html

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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

Implement more robust GPS calibration and error handling.

Assumption to check: Inaccurate speed readings in certain areas

Validate with people who use this workflow before building.

Hypothesis 2

Enhance trip detail graphs to show speed variations over time.

Assumption to check: Limited historical data visualization

Validate with people who use this workflow before building.

Hypothesis 3

Add features for users to customize units, themes, and alerts.

Assumption to check: Lack of customization options

Validate with people who use this workflow before building.

Hypothesis 4

Offer an ad-free premium version with enhanced features.

Assumption to check: Ads may disrupt user experience

Validate with people who use this workflow before building.

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.