App Overview

Digital Bearing Compass icon

Digital Bearing Compass

Thomas Oswald · Navigation

Transform your iPhone or iPad into a high-precision bearing compass

$3.99 · In-app purchases

PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.3
12 ratings · Top 30%

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 included18 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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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 Digital Bearing Compass: 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

Add features like location sharing or route tracking.

Assumption to check: Limited functionality compared to more feature-rich navigation apps

Validate with people who use this workflow before building.

Hypothesis 2

Implement a more robust calibration process.

Assumption to check: Calibration can be inaccurate under certain conditions

Validate with people who use this workflow before building.

Hypothesis 3

Modernize the UI with better graphics and animations.

Assumption to check: User interface may feel outdated

Validate with people who use this workflow before building.

Hypothesis 4

Introduce offline mode for compass functionality.

Assumption to check: Lacks offline capabilities

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

Transform your iPhone or iPad into a high-precision bearing compass. Use Augmented Reality (AR) for instant cross bearings, position fixing, and distance calculations—100% offline, subscription-free, and fully private. Are you a pilot, sailor or an outdoor adventurer ? Then the Digital Bearing Compass augmented reality app will be a valuable tool for you. Aim at objects in sight and directly read the true and magnetic bearing. Then you can check your bearings on the map. In addition, the current position, including the altitude above sea level is displayed. Or you can set a fix in the map view. Bearing and distance to the fix is constantly computed. In the camera view, the difference angle between current bearing and the fix is also displayed. There is also a red marker at the location of the fix in camera view displayed by augmented reality technology. Since version 3.x you can also set a mark on the current location. This mark is also displayed in the camera view. The app shows the distance and bearing to this marked location. By taking 2 bearings or by using the fix, you can measure the angle between 2 points or objects ... if you are a sailor or yachtsman, you know what you can do with this information. You can use them directly for navigation, since this corresponds to the functionality of a sextant. You can also use trigonometry to determine the size of a distant object. By getting 2 bearings you can also apply the method of cross bearing directly. The bearings are automatically saved, so they will be available when you start the app the next time. Benefits: - The App uses the high-tech sensors of your iPhone or iPad to measure orientation, device and declination (the angle between the direction to Geographic North and Magnetic North, pilots call it variation). - Augmented reality technology, available since iOS 11. The app will also be continuously improved, further developed and equipped with new features. - You can switch between camera mode and map mode. - The angle between 2 points or objects can be measured. - A fix can be set in map view which is shown also in camera view. - You can set a mark on the actual position. This mark is also displayed in the camera view. - The position and direction of the bearings and the fix are drawn in the map. - This way a cross bearing is possible. - day/night mode - you can choose between different coordinate formats - you can choose between different distance and altitude units - the cardinal directions are shown in the camera view No matter if you are a pilot, seal, scientist, astronomer, technician, geographer or outdoor athlete, you will find the app extremely valuable for your orientation and navigation. And it is fun. Please note that some sensors require a time to calibrate. Sometimes it might be the case that after starting the app, for a few seconds a wrong direction will be displayed. The camera should be moved slowly back and forth in this case so that the device can perform the calibration. The app needs the permission to use the GPS. No data will be sent from the app to the outside world. The app also uses augmented reality, a brand new technology which is supported only by the newest devices. You need at least an iPhone 6s or later, an iPad pro 2nd generation or later, or an iPad 2017 or later. Future devices will all support augmented reality.

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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.