Comparison

DronePass vs YAM

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

Head to head
About

DronePass

This app helps drone pilots plan and manage flight zones with map sketching, zone creation, and integrated notes. It provides real-time weather data, KP index forecasts, and sunrise/sunset alerts for safer operations. Manage multiple drones and sync data across devices.

Highlights
  • Map sketching and zone creation
  • Integrated notes with navigation links
  • Expiration date notifications for permits
  • Multi-drone management
  • Real-time cloud synchronization
  • Real-time weather and KP index data
  • Sunrise/sunset time alerts
Features
Read full description

β–  DronePass is a map sketching tool designed to let drone pilots directly design and manage their own filming and practice zones. β€’ Shape Drawing – Long-press the map screen to set the center point, then simply enter the distance (m) to instantly create a circular zone. β€’ Integrated Notes with Multiple Functions – The shape details window supports navigation links for addresses, phone number links, and hyperlinks for email and web addresses. β€’ Sketch Function – Draw lines directly on the map to record desired information. β€’ Expiration Date Notifications – Receive alerts for expiring filming permits. Expired shapes appear grayed out on the map for immediate identification. β€’ Multi-Drone Management – Register multiple drones and assign them to specific approved zones. β€’ Real-Time Cloud Synchronization – Sign in with your Apple or Google account to sync data in real time across devices, so you can use the same data across your devices. β€’ Real-time Weather Data – Check temperature, wind speed, wind direction, gusts, precipitation, visibility, and dew point risk index in real time for your current location (with location consent) or the map center. Evaluate safety based on drone weight. β€’ KP Index Forecast – Monitor the Geomagnetic Disturbance Index (KP) in real time and receive 48-hour forecasts to track space weather that may affect GPS accuracy. β€’ Sunrise/Sunset Time Alerts – Check sunrise and sunset times for your current location (with location consent) or the map center, with alerts 30 minutes and 10 minutes prior. β–  Data & Security β€’ DronePass stores all shape data locally on your device by default. Sign in with your Apple or Google account to sync data securely across devices via Firebase with encryption. β€’ Your current location is used only after you give optional location consent, and only to show your position on the map and for weather and sunrise/sunset information. Without consent, every feature works using the map center, and you can withdraw consent at any time in Settings. β–  DronePass Pro (auto-renewable annual subscription) β€’ Free plan: create up to 30 shapes, 100 sketch lines, and 3 drones. Data you already created is kept, and editing and deleting are unlimited. β€’ DronePass Pro: create unlimited shapes, sketch lines, and drones for β‚©29,000 per year (local prices apply in each country or region). Purchasing requires signing in. β€’ The subscription lasts one year and renews automatically at the same price and length unless auto-renewal is turned off at least 24 hours before the end of the current period. Payment is charged to your Apple ID account. You can manage or cancel it in Settings > Apple ID > Subscriptions after purchase. β€’ Accounts created before 00:00 KST on November 6, 2026 and users who downloaded a version earlier than 3.6.0 can use Pro free of charge for as long as DronePass is offered. β€’ Terms of Service: https://sciencefiction.co.kr/dronepass/terms/termsofservice_en.txt β€’ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ β€’ Privacy Policy: https://sciencefiction.co.kr/dronepass/privacy/ β–  Supported Devices β€’ iOS 17.6 or later - Optimized for iPhone 12 and later models Design your own safe flight map with DronePass today!

About

YAM

Features
Read full description

YAM helps tourists and expats in Korea find the nearest public restroom in seconds β€” no Korean required. Built on Korea's official public data (data.go.kr), YAM shows real-time restroom locations near you, complete with walking distance, directions, and address β€” all in English. Why travelers love YAM: - Real-time nearby restroom map β€” no more guessing - One-tap directions via Google Maps or Naver Map - Copy address instantly to show a taxi driver or ask for help - Works anywhere in Korea β€” subway stations, parks, tourist areas, and more - Simple, no-signup experience β€” just open and find Whether you're exploring Seoul, hiking in Busan, or catching a train, YAM is the one app every visitor to Korea should have installed before they land.

Screenshots

DronePass4 screens
YAM4 screens

Verdict

The call

The clearest difference is price: DronePass at Free against YAM's $1.99. DronePass also leads on ads (none vs shown). YAM's advantage is iOS requirement (15.0 vs 17.6). On update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

DronePass is free to download; YAM costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DronePass ships an update every 2 weeks, YAM fortnightly. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

Scorecard3 real differences Β· 5 level
DronePass versus YAM: the parameters behind the verdict, then further details
ParameterDronePassYAM
PriceFree β€” better$1.99
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 2 weeksFortnightly β€” better
AdsNo β€” betterYes
In-app purchasesNoNo
MonetizationFreemiumβ€”
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.0 β€” better
Further details β€” not scored
Size36 MB14 MB
Age rating4+4+
DeveloperScience Fiction Inc.sukjin lee

In-app purchases

None

DronePass

No in-app purchases

None

YAM

No in-app purchases

Questions

Is DronePass free?
DronePass is free to download, with no in-app purchases.
Is YAM free?
YAM costs $1.99, with no in-app purchases.
Do DronePass or YAM have ads?
YAM shows ads; DronePass does not.
Which is updated more often, DronePass or YAM?
DronePass ships an update every 2 weeks, and YAM fortnightly. Most recently, DronePass was updated on October 16, 2026 and YAM on October 7, 2026.

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