Geneva Moon vs Mountain Worksheet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Geneva Moon
This app offers an astronomically accurate moon display for your Apple Watch. It provides a visually pleasing indication of the moon's current phase and orientation, matching what you see in the sky. You can also explore future moon phases by rotating the digital crown.
- Astronomically accurate moon display
- Visually rich or simplified appearance options
- Main display shows azimuth, elevation, phase, and orientation
- Time travel through moon phases
- Compass integration for moon location (Series 5+)
- Complications for all watch face types
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I've always liked wearing a lunar complication on my Apple Watch. There is something both visually delightful but yet also slightly geeky about it. But I was unable to find a complication that provided an astronomically accurate moon display...which just kinda bothered me. So I made Geneva Moon. Geneva Moon seeks to provide a highly accurate, visually pleasing indication of what the moon looks like right now, right where you are. My goal was to make it so that if you look down at your wrist and then up into the sky the images you see should match. It includes a robust set of complications for every watch face type. Choose between either a visually rich 'actual ' appearance or a more simplified version, to fit your own personal style. The main display indicates the current azimuth and elevation of the moon along the horizon along with a visual indication of its phase and orientation. Rotate the Digital Crown to shift forward and backwards through time and see how the moon will shift (tap on the screen to reset to now) On Apple Watches equipped with a compass (Series 5) you can have Geneva Moon orient itself towards the actual moon to make it easier to locate the moon in the sky. Thank you for considering Geneva Moon, I hope you enjoy having the moon on your wrist as much I do. —Dave
Mountain Worksheet
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**Conquer the Mountains with Confidence** Mountain Flying Worksheet is the essential tool for pilots operating in high-altitude terrain. Built by pilots, for pilots, this app delivers accurate, POH-based aircraft performance calculations specifically designed for mountain flying operations. **WHY MOUNTAIN FLYING WORKSHEET?** Flying in mountainous terrain demands precision. Thin air, high density altitudes, and challenging terrain leave no room for guesswork. Mountain Flying Worksheet eliminates uncertainty by providing real-time performance data extracted directly from Pilot Operating Handbooks, ensuring your flight planning is based on manufacturer specifications—not rough estimates. **REAL POH DATA** Unlike generic calculators, every calculation uses actual performance tables from official POHs: • Cessna 172S (Skyhawk) • Cessna 182T (Skylane) • Cessna T182T (Turbo Skylane) • Cessna T206H (Turbo Stationair) **KEY FEATURES** **Instant Airport Data** Enter any airport code and instantly retrieve elevation, temperature, and altimeter settings. Auto-fetch eliminates manual lookups and data entry errors. **Comprehensive Performance Calculations** • Rate of Climb (Departure, Enroute, Arrival) • Takeoff Distances (Ground Roll & 50' Obstacle) • Landing Distances (Ground Roll & 50' Obstacle) • Service Ceiling (300 fpm threshold) • Density Altitude & Pressure Altitude • Weight-adjusted performance for actual aircraft loading **Critical V-Speeds** • Vx (Best Angle of Climb) • Vy (Best Rate of Climb) • Va (Maneuvering Speed at actual weight) • Vra (Rough Air Speed) • All speeds calculated for your specific weight **Mountain-Specific Calculations** • Canyon Turn Speeds (with flap settings) • Temperature lapse rate for enroute calculations • Performance warnings for high density altitude • Flap configuration optimization **Professional PDF Reports** Generate compact, card-style PDF reports for your kneeboard or flight bag. All critical data in an easy-to-read format that fits your workflow. **Smart Performance Warnings** Automatic alerts when: • Density altitude exceeds 5,000 feet • Temperature exceeds 30°C (86°F) • Aircraft weight exceeds maximum gross weight • Climb performance falls below safe margins
Screenshots
Verdict
The clearest difference is update cadence: Geneva Moon at every 2 days against Mountain Worksheet's every 5 weeks. Geneva Moon also leads on iOS requirement (15.0 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Geneva Moon ships an update every 2 days, Mountain Worksheet every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Geneva Moon | Mountain Worksheet |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (97 ratings) — better | — |
| Positive reviews | 49.4% of reviews | — |
| Number of ratings | 97 — better | — |
| Update frequency | Every 2 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Cross Forward Consulting, LLC | ezaero, Ltd. |
In-app purchases
Geneva Moon
No in-app purchases
Mountain Worksheet
No in-app purchases
Questions
Is Geneva Moon free?
Is Mountain Worksheet free?
Do Geneva Moon or Mountain Worksheet have ads?
Which is updated more often, Geneva Moon or Mountain Worksheet?
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