Comparison

Moon Phase vs Altimeter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Moon Phase

Track the current moon phase, illumination, and lunar age with detailed daily and monthly views. Plan observations with moon direction, altitude, and visibility timing. Receive local reminders for major lunar events and utilize home screen widgets for quick access.

Highlights
  • Current moon phase tracking
  • Daily and monthly lunar calendar
  • Moonrise and moonset times
  • Lunar event reminders
  • Home screen widgets
  • Zodiac sign tracking
Features
Read full description

Plan your nights around the moon. MoonPhase helps you follow the current moon phase, illumination, lunar age, moonrise, moonset, direction, distance, and upcoming lunar events in a clean dark interface designed for quick daily use. Open the Today screen to see the current phase at a glance, slide through upcoming days, and review precise details such as illumination percentage, lunar age, phase day, azimuth, distance, moonrise, and moonset. The Calendar tab gives you a month view of daily moon phases with realistic moon images. The Zodiac tab shows the Moon's transit through zodiac signs using moon longitude calculations and dedicated zodiac artwork. The Planner tab helps you prepare an observation plan with moon direction, altitude, visibility timing, next major phase details, and a polished shareable image card. MoonPhase can send local reminders for major moon phases, Supermoon, Solstice and Equinox events, Moonrise, Moonset, Sunrise, and Sunset based on your selected settings. Notification attachments can include the matching moon phase image. Widgets show the current phase, illumination, lunar age, next major phase, and upcoming days directly on the Home Screen or Lock Screen. Location is used only to calculate local sky details such as moonrise, moonset, azimuth, direction, and local timing. You can also choose a manual location on the map or reset to device location. If location access is not granted, MoonPhase uses New York as the default fallback location. MoonPhase does not require an account, does not include ads, does not use analytics or tracking SDKs, and does not run background location tracking. Lunar calculations are provided for planning and informational use; outdoor observation should always consider local weather, terrain, safety, and sky conditions. Free access: current features are available without in-app purchases or subscriptions. Terms of Use (EULA): https://ern.digital/moonphase/terms Privacy Policy: https://ern.digital/moonphase/privacy

About

Altimeter

Features
Read full description

Track your exact altitude, elevation gain, and barometric pressure with Altimeter, the ultimate professional-grade navigation and weather tracking tool for hikers, climbers, skiers, and outdoor enthusiasts. Whether you are scaling a mountain peak, flying a drone, or sailing the open seas, Altimeter leverages your device’s built-in hardware sensors and high-accuracy GPS to deliver real-time data offline, anywhere in the world. ► WHY CHOOSE ALTIMETER? Unlike standard elevation apps, Altimeter combines a precise sensor-driven barometer with dynamic weather station calibration (QNH) to ensure your readings remain accurate, even when atmospheric conditions shift. ► CORE FEATURES: • Precision Altimeter: Measure actual and relative altitude with absolute accuracy in meters or feet. • Barometric Pressure Tracker: Monitor atmospheric pressure trends using your device’s built-in hardware sensor. • Storm Alerts: Get instant notifications when sudden pressure drops indicate an incoming storm. • Live Tactical Compass: Navigate safely with a highly accurate direction indicator, wind direction, and orientation. • Trip Gain & History: Log your hikes and climbs, and track your trip elevation gain, ascent rate, and historical graphs. • Premium Home Screen Widgets: Monitor altitude and pressure right from your home screen (PRO feature). • Multiple Location Support: Save and track weather, pressure, and elevation for multiple cities or waypoints. ► CUSTOM SPORTS & TRAVEL MODES: Optimized dashboard layouts customized for your favorite activities: • General Mode: Standard altimeter, barometer, and compass views for daily tracking. • Drone Mode: Safe-to-fly wind speed and condition assessments for UAV pilots. • Sailing & Surfing Modes: Beaufort wind scale alerts and weather forecasts to keep you safe on the water. ► CALIBRATION & OFFLINE PRECISE DATA: • Auto QNH & Sea Level Pressure Calibration: Syncs with nearby meteorological stations to calibrate automatically. • GPS Reference Altitude: Calibrates sensor offsets instantly using high-precision satellite data. • 100% Offline Capability: Built to function in remote wilderness or high altitudes without cell coverage. ► PRIVACY FIRST Your sensor and location data are processed entirely on your device. We never collect, track, or share your personal information. Download Altimeter today and conquer your next adventure with professional navigation on your wrist and in your pocket! Privacy Policy: https://doc-hosting.flycricket.io/barometer-altimeter-pro-privacy-policy/f5b83551-b63f-4d2a-b3a8-1b9c40f7c12a/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Moon Phase4 screens
Altimeter4 screens

Verdict

The call

Moon Phase and Altimeter are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Moon Phase versus Altimeter: the parameters behind the verdict, then further details
ParameterMoon PhaseAltimeter
PriceFreeFree
Rating4.8 (12 ratings) — better—
Number of ratings12 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size8 MB38 MB
Age rating4+4+
DeveloperERN DIGITAL LLCTirin

In-app purchases

None

Moon Phase

No in-app purchases

None

Altimeter

No in-app purchases

Questions

Is Moon Phase free?
Moon Phase is free to download, with no in-app purchases.
Is Altimeter free?
Altimeter is free to download, with no in-app purchases.
Do Moon Phase or Altimeter have ads?
Neither Moon Phase nor Altimeter shows ads.

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