Radio Messenger vs Quick DA

Send messages, files, photos, and locations over amateur radio using your iPhone or iPad. Radio Messenger brings modern conversation to packet radio. Whether you are using APRS or experimenting on a local frequency, the app is built around messaging first, not beacons and maps. Use Radio Messenger with supported Bluetooth radios, KISS TNCs, or integrated modem with an audio adapter to stay connected when cell coverage is unavailable or simply not the point. Two messaging modes. One app. APRS Messaging Works with the existing APRS ecosystem. Send messages with acknowledgements, retries, delivery tracking, and optional Message Continuity tap into store and forward and internet delivery to help messages reach you even when you are away from the radio. Enhanced Messaging A modern radio-only messaging mode for direct conversations. Includes verifiable identity, delivery acknowledgements, read receipts, reactions, and support for longer messages. Features • Messaging focused Conversations, contacts, and multi-device sync designed to feel familiar and easy to use. • Location sharing Share your location or drop a labeled pin directly in a conversation. No automatic beaconing. You choose when and what to share. • Offline maps Maps are cached automatically so shared locations remain visible when you are off-grid. • Presence & On Air See who is active and recently heard. Share a short status and emoji so others know you are around. • File & image sharing Send photos and documents in Enhanced Messaging conversations. Recipients can accept or decline transfers. • Identity & verification Verify who sent a message and manage trusted identities for more confident communication. • Search & inbox tools Find conversations by name, callsign, or message content. Pin threads, mute alerts, and manage your inbox with ease. • Radio native Built for Bluetooth radios and external TNCs, with frequency control available on supported hardware. Radio Messenger is designed for licensed amateur radio operators and requires compatible radio. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Quick DA uses your devices onboards sensors (GPS and Barometric Pressure Sensor) and user data inputs making it simple to calculate Density Altitude. Store your DA calculations into the Data Log for later reference, or load past Data Logs back into the Environment Tab to further edit your DA calculation. Calculate Density Altitude using: -Ambient Air Temperature + Elevation -Ambient Air Temperature + Barometric Station Pressure -Ambient Air Temperature + Barometric Station Pressure + Relative Humidity Features and Functions: DA calculation, Location and Time the calculation was created prominently displayed Use the Environment input options that work for you Get Ambient Air Temperature from the nearest weather station Receive your current Field Elevation using the device’s GPS Use the Map Screen Feature to select a point on the map and receive its elevation Select between Street, Terrain, and Satellite map options Use your device’s Barometric Pressure Sensor for real-time pressure readings Use the Advanced Pressure Input option for converting Sea Level Adjusted Pressure Get your current Relative Humidity from the nearest weather station Press the + action button to create a Data Log of your DA Calculation Data Log entries display: location, date, time, DA, and input variables used to calculate DA Use the arrow action button to load data back into Environment Tab Use the Clear Button to clear all Environment Tab inputs User selectable Dark, Color, and Light app themes Use Feet or Meters and Fahrenheit or Celsius Quick DA uses Apple MapKit for map interaction, search, road, and satellite imagery. Terrain tile overlays are powered by MapTiler OSM Contributors. Elevation data for selected locations is provided by the USGS Elevation Point Query Service. This app does not have any in-app purchases