App Overview

Tracerlink icon

Tracerlink

Vojtech Vondra · Navigation

Tracerlink brings live vario data from your UltraBip, BlueBip or XC Tracer directly to Apple Watch.

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.0
1 ratings · Below Average

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 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 Tracerlink: 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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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

Incorporate offline maps and navigation.

Assumption to check: Limited offline capabilities

Validate with people who use this workflow before building.

Hypothesis 2

Use real-time traffic data for better routing.

Assumption to check: Inaccurate traffic data

Validate with people who use this workflow before building.

Hypothesis 3

Encourage users to leave reviews and ratings.

Assumption to check: Lack of user reviews

Validate with people who use this workflow before building.

Hypothesis 4

Optimize loading times and responsiveness.

Assumption to check: Poor app performance

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

Tracerlink brings live vario data from your UltraBip, BlueBip or XC Tracer directly to Apple Watch. Built for paragliding and hike-and-fly pilots, Tracerlink keeps your cockpit light: connect your external BLE vario, start your flight and read the key values on your wrist without using an iPhone cockpit in the air. The watch-first display is designed for short glances: large numbers, clean layouts and a Focus Mode that gives one selected value more room on screen. Optional haptic feedback can signal climb with subtle taps, while Workout integration helps keep the display active and tracks flight duration. Why pilots use Tracerlink: - Wrist-only flight display: live vario values directly on Apple Watch - Light setup: no phone cockpit needed in flight - Quick connection: connect UltraBip, BlueBip or XC Tracer from the watch - Clear reading: large, high-contrast values for short glances - Focus Mode: show one key metric in a simplified full-screen view - Haptic climb feedback: optional taps with adjustable sensitivity - Altitude calibration: manual altitude, QNH and source labels for a clearer setup workflow - Metric and imperial units - Clear one-time purchase: no subscription model Live flight metrics: - Vario device battery status - Altitude with source indicator - Climb and sink rate - Flight duration - Ground speed, course and glide ratio where supported by the connected device and data stream Altitude calibration: Tracerlink 2.1 adds a more deliberate altitude setup workflow. Depending on your connected device and available data, the app can work with manual altitude calibration, QNH-based altitude or GNSS-assisted calibration where supported. A compact source label shows how the displayed altitude is currently derived. Focus Mode: Focus Mode gives one selected metric more space on screen, such as altitude or climb rate, for quick reading in the air. Haptic feedback: Optional haptic feedback can signal climb with subtle taps. Sensitivity can be adjusted in the watch settings. Workout integration: Tracerlink uses Workout mode to help keep the watch display active during flight and to track flight duration. Compatibility and requirements: - Devices: UltraBip, BlueBip or XC Tracer - Apple Watch: watchOS version as listed in the App Store compatibility section - iPhone/iPad app: includes manual and support information; flight data is shown on Apple Watch - GPS-dependent values are available only when the connected device and data stream provide them - Compatibility with older device models or outdated firmware is not guaranteed Tracerlink is a display and convenience tool for pilots using a compatible external vario. It is not a navigation system, safety instrument or replacement for approved flight equipment. XC Tracer, UltraBip and BlueBip are trademarks of their respective owners. Tracerlink is independently developed and is not affiliated with, endorsed by or sponsored by XC Tracer GmbH or Stodeus.

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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
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BUILD KIT DIFFICULTY
Advanced

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.