App Overview

Talking Speedometer icon

Talking Speedometer

Dmitriy Kharutskiy · Health & Fitness

A TALKING VERSION OF ANOTHER SPEEDOMETER

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
2 ratings · Top 5%

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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A product spec, screen plans, and build steps for your coding agent.

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What's included17 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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Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Talking Speedometer: map the core Health & Fitness 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

Allow users to customize voice alerts and choose different voices.

Assumption to check: Limited customization for voice feedback options

Validate with people who use this workflow before building.

Hypothesis 2

Enable users to track multiple trips and compare them.

Assumption to check: No ability to track multiple trips concurrently

Validate with people who use this workflow before building.

Hypothesis 3

Implement a more modern UI with themes and customization options.

Assumption to check: Basic design may not appeal to all users

Validate with people who use this workflow before building.

Hypothesis 4

Add social sharing features for users to share their progress and achievements.

Assumption to check: Lack of social features for sharing progress

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

A TALKING VERSION OF ANOTHER SPEEDOMETER. DOWNLOAD OUR FREE SPEEDOMETER TO TRY OUT THE KEY FEATURES. 1. Voice cues to notify you when you reach the selected speed. About 25* languages supported. Receive speed voice cues while listening to music. 2. Speed data filtering. Readings with the filter on are more inert than those with the filter off though. THE FILTER MUST BE ON WHEN CYCLING, JOGGING OR WALKING. 3. The G-meter. Get APPROXIMATE acceleration calculated based on your speed variation. Why use the GPS G-meter: no need to keep your iPhone in a fixed position or connect it to your vehicle’s computer system, which means speed readings can be taken discreetly, for example, during a test drive. Taking a number of readings compensates lesser accuracy. Acceleration is calculated only when the filter is off. Acceleration cannot be measured near tall buildings, in the mountains or woods. 4. Large, well-lit digits 5. HUD (the speed is displayed in the windscreen reflection at night time or in cloudy weather) 6. Background mode. Continued use of GPS running in the background can dramatically decrease battery life. 7. Speed and acceleration graphs 8. Odometer 9. Altimeter 10. Time, journey duration, and current stop duration. The current stop duration will be reset after 20 seconds of motion. 11. See tracks on the map 12. Save tracks 13. Compass 14. Angle of incline (inclinometer) 15. Aircraft descent/climb angle 16. Get detailed stats for any part of your journey 17. Export your journey to a KMZ or GPX file 18. Export track statistics table to a CSV file 19. Load and show your route (journey plan) on the map together with a track. To do this, create a route, using a special online service (such as GPX Editor - https://www.gpxeditor.co.uk/map, The online GPX file editor - https://gpx.studio/, Track drawing websites - https://wiki.openstreetmap.org/wiki/Track_drawing_websites) on your desktop, and export it as a GPX (KML, CSV) file. The file name must begin with "Route". Using iTunes, transfer the file into the app (OR use the "Files" app). Following this, you will be able to select your route at the bottom of your track list. Now you can easily travel following your route line, even without loading a map. 20. Export and import files via iTunes and email 21. Waypoints (description, color selection, keywords, photos, audio records) 22. A single waypoint database with a filter option 23. Music controls 24. No annoying ads 25. Vintage design Why use voice cues: 1. Get notified if you have gone over the speed limit. 2. Voice cues allow novice drivers to find out their current speed without taking their eyes off the road. 3. Control your speed, even when you have limited or no access to your phone's screen, for example, when you are out jogging, roller-skating, cycling or skiing. 4. Keep your speed under control when you are driving at high speeds , as taking your eyes off the road can be highly dangerous. 5. Control your speed discreetly by using headphones. Voice cues rules: • "50,80-" — Receive voice cues once the speed goes over or under 50 and each time it changes after hitting the 80 mark. • "+25,-30" — Receive voice cues once the speed hits the 25 mark (when speeding up) and when it goes below 30 (while slowing down). • "10-20" like "10,11,12,...19,20". • "0-10-60,70-5-" — Detailed cues, such as "0,10,20,...60,70,75,80,85,90,...". • "-10-10-40,+70-5-" — Detailed cues, such as "-10, -20, -30, -40, +70, +75, +80, +85, +90,...". • You can use rules for sound signals (for example "55!! 60!!!"). But then the rules for pronouncing the speed will not work. https://youtu.be/fu7nlxfjkf8 * — English, Deutsch, 日本語, Español, Français, Italiano, Русский, العربية, ไทย, Nederlands, Português, Polski, Ελληνικά, Bahasa Indonesia, Svenska, Türkçe, 한국어, Magyar, Čeština, Dansk, Suomi, Română ...

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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
React Native
Expo
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react-native-voice
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.