App Overview

Compass Eye Bearing Compass icon

Compass Eye Bearing Compass

Pocket Mariner Ltd. · Navigation

Professional Augmented Reality Bearing Compass with real-time camera and map views, bearing markers and up to 8x zoom providing Compass Binocular features at a fraction of the cost.

$4.99 · In-app purchases

PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.6
5 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 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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> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Compass Eye 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

Implement a recalibration feature that guides users through the process.

Assumption to check: Compass accuracy can be affected by magnetic interference.

Validate with people who use this workflow before building.

Hypothesis 2

Add advanced features for categorizing and sharing saved locations.

Assumption to check: Limited functionality for location management.

Validate with people who use this workflow before building.

Hypothesis 3

Offer a free trial period for premium features to increase initial user engagement.

Assumption to check: In-app purchase for basic features feels unnecessary.

Validate with people who use this workflow before building.

Hypothesis 4

Redesign with modern UI elements and animations for better engagement.

Assumption to check: User interface may feel outdated.

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

Professional Augmented Reality Bearing Compass with real-time camera and map views, bearing markers and up to 8x zoom providing Compass Binocular features at a fraction of the cost. "..works nicely, we tried it out at the Voiles d'Antibes...the Captain's response when trying it out was 'Cool!'." - Boatbookings, The World's Leading Online Yacht Charter Broker Compass Eye can be used to help with navigation on land, sea or air as a bearing or marching compass. Compass Eye is fully gimballed and works accurately in all orientations and angles when held vertical and horizontal. “This app is a compass on steroids! It is fully gimballed so it will work in any orientation on your iPhone or iPad.  You can use it on land while hiking or as a hand bearing compass on the ocean or in the air while flying.” i-Marine Apps "The app's compass works way better than the iOS default compass and I don't have to wave my iPhone in the air every time I launch the app." Gizmodo Review (App of The Day, 6th December). MAIN FEATURES - Real time, accurate in all orientations - Compass overlaid on live camera view - 8x Digital zoom - Back, transit, or collision bearing markers - Draggable Green and red bearing lines - Triangulation bearings - Optional time, date and GPS location information - Magnetic or True North setting with variation based on location - Live map view with position and track - Artificial Horizon with roll and pitch readout - Night Vision and FLIROne® Infra-red support - Location sharing - Longitude and latitude degree display in DD° MM.mmm', DD° MM' SS.ss" and now DD.ddd° - iOS Dark mode support - Full screen on iPhoneX and later devices Enabling GPS also shows the Speed Over Ground (SOG) , Course Over Ground (COG) and optional COG bearing (purple). HOW TO USE Taking a bearing - look through your iPhone at the distant object, line it up with the centre line and read off the bearing! Zoom in to get more accuracy. Setting a bearing - look through your iPhone at the point you want to get to, tap the Bearing button (Top right) and follow the yellow bearing line. Setting a bearing from the map - lay the iPhone flat, rotate or drag a bearing line to line up with the point you are aiming for and follow that bearing. Triangulation - use the three bearing lines - yellow green and red to take bearings on 3 points. Capture the view including compass, bearings, time and location information (Camera button on left of screen) and then use the photo to plot a fix on a chart. Clearance bearings to a point on an approach - set one line to the minimum bearing (e.g. the angle the target must bear greater than) and the other line to the maximum bearing and navigate between the two. Use the colours according to the IALA lateral markings to help you remember which way to steer. e.g. in North America use red for the minimum bearing and green for the maximum (vice-versa in Europe!). SPECIFICATIONS Based on the iPhone camera the image specification at full zoom compares favourably with a 7x50 pair of binoculars: - Field of Vision at 1000m at 8x: 122m - Angle of view at 8x: approx 7 degrees - ISO 3200 or better. NAVIGATION SAFETY Compass Eye should only be used for basic navigation assistance. Never rely solely on the digital compass for determining direction, proximity or distance. The user is responsible for the prudent use of information provided by this application and must not use it for direct navigation. Requirements: iOS device with back facing Camera, Magnetometer and accelerometer (gps is optional). N.B. Battery consumption can go up considerably when the iPhone's GPS is enabled, Compass Eye allows you to turn off location display to preserve battery life. Terms of Use: http://seanav.net/termsofuse.php Privacy Policy: http://seanav.net/privacy.php Support: [email protected]

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Screenshots

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Build scope

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Define the first version

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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.

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BUILD KIT DIFFICULTY
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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.