App Overview

Altimeter - Altitude & Compass icon

Altimeter - Altitude & Compass

Gaurav Babbar · Travel

Your complete altitude toolkit

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.6
8,455 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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Build Kit

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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 Altimeter - Altitude & Compass: map the core Travel 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 advanced GPS and barometric sensors for better accuracy.

Assumption to check: Inaccurate altitude readings in certain locations.

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to choose themes or styles for the compass.

Assumption to check: Limited customization options for compass display.

Validate with people who use this workflow before building.

Hypothesis 3

Enable offline mode for altitude tracking without internet connectivity.

Assumption to check: Lack of offline functionality.

Validate with people who use this workflow before building.

Hypothesis 4

Clearly outline features included in the premium subscription to enhance user understanding.

Assumption to check: In-app purchase confusion.

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

Your complete altitude toolkit. Real-time elevation, weather forecasts, precision compass, activity tracking, altitude camera, and SOS -- all in one app. Whether you're summiting a peak or checking pressure before a storm rolls in, Altimeter gives you the instruments you need -- core features work without a signal. [ALTIMETER & ELEVATION] - GPS + barometer dual-sensor fusion for higher accuracy - Works offline -- mountains, deserts, backcountry, no signal needed - Record elevation sessions with live altitude charts - Altitude tier display: lowland - highland - treeline - alpine - extreme - Helpful for altitude-sensitive conditions like COPD and asthma [WEATHER] Not found in other altimeters - Current temperature, wind speed, humidity, UV index, visibility, cloud cover - Hourly forecast + 16-day daily forecast - Severe weather alerts for mountain safety [COMPASS & NAVIGATION] - Magnetic and true north modes, bearing lock, sun compass - GPS coordinates in DMS, DDM, or decimal format - Magnetic declination auto-calculated [ACTIVITY TRACKING] Not found in other altimeters - Steps, distance, floors, calories, active minutes - Daily streaks, monthly summaries, expedition badges - Personalized insights and active hours breakdown [MORE TOOLS] - Mark Location -- save any spot, navigate back with AR, radar and map - Binoculars -- high-quality zoom with multiple frame styles - SOS -- one-tap send your coordinates to emergency contacts - Flashlight -- quick illumination outdoors at night [UPGRADE TO PRO] Unlock everything: extended forecasts, advanced compass, full activity analytics with streaks and badges, elevation landmarks, milestone progress, altitude alerts, and ad-free experience. Choose weekly, annual, or lifetime access. Available in English, German, Spanish, French, Italian, Japanese, Korean, Simplified Chinese, and Traditional Chinese. - Privacy Policy: https://enacti.com/altimeter/privacy-policy.html - Terms : https://enacti.com/altimeter/terms-and-conditions.html

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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
React Navigation
expo-location
react-native-reanimated
@react-native-community/hooks
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.