10 Must-Have Ham Radio Mobile Apps

Your radio does the talking, but your phone can do almost everything else — finding repeaters, checking conditions, looking up the station that just called you. The right apps turn a smartphone into the most useful accessory in your kit. Here are 10 worth installing, with a note on which license class gets the most out of each.

Heads up: ham radio app development leans Android-heavy, in part because publishing to Apple's App Store costs developers more. When there's an iOS version, you'll find it listed below.

1. HamStudy.org — Best for: getting (or upgrading) your license

What it does: The study app most hams actually use to pass. It tracks which questions you've seen, which ones trip you up, and drills you on your weak spots instead of feeding you random practice tests.

Why you need it: It covers all three US question pools — Technician, General, and Extra — so it grows with you. If you're studying for your next ticket, this is the one. Note: the 2026 Technician pool takes effect July 1, and the app already has it loaded.

• Best for: All classes (license study)
• Platform: Android, iOS
• Cost: Free on Android (sponsored by ICOM), $3.99 on iOS
• Download: Google Play | App Store

2. RepeaterBook — Best for: finding a repeater anywhere

What it does: The world's largest free repeater directory. Frequencies, offsets, tones — all of it, for over 70 countries.

Why you need it: This is the app you'll open most as a new ham. The killer feature is that it works with no network connection at all, so it's still useful at the bottom of a canyon or out past the last cell tower. Touch a repeater and it can even program a compatible radio for you.

• Best for: All classes
• Platform: Android, iOS
• Cost: Free
• Download: Google Play | App Store

3. EchoLink — Best for: making contacts without a radio in front of you

What it does: Connects you to repeaters and contacts over the internet. You can talk to hams worldwide straight from your phone.

Why you need it: Great for staying on the air when you're away from your gear, or for reaching a distant repeater you'd never hit otherwise. You'll need to verify your license the first time.

• Best for: All classes
• Platform: Android, iOS
• Cost: Free (license required to use)
• Download: Google Play | App Store

4. APRSdroid — Best for: location tracking and events

What it does: Sends and receives APRS position data. Track yourself on a map and see other hams around you.

Why you need it: Genuinely useful for public-service events, group activities, and emergency communication. It's Android-only, so iPhone users will want a different APRS client.

• Best for: All classes
• Platform: Android
• Cost: Free
• Download: Google Play

5. POTA on the GO — Best for: chasing and activating parks

What it does: A live feed of Parks on the Air activity. Watch who's on the air, find parks on a map, filter spots by band and mode, and check activation history.

Why you need it: Parks on the Air is one of the easiest, most fun ways to get active — and you can start as a hunter on day one. Two honest notes: it's a newer app still building its review base, and it's an independent third-party tool, not run by POTA itself.

• Best for: All classes (hunting); General+ gets the most as an activator
• Platform: Android, iOS
• Cost: Free (supported by ads)
• Download: Google Play | App Store

6. DVSwitch Mobile — Best for: digital voice modes

What it does: Access DMR, Fusion, and D-STAR networks through your phone — no extra hardware.

Why you need it: A cheap way to explore digital voice and hear what those modes sound like before you commit to a digital radio.

• Best for: All classes
• Platform: Android
• Cost: Free
• Download: Google Play

7. AMRT – Ham Radio Toolkit — Best for: quick calculations & lookups

What it does: A grab-bag of charts, tools and calculators — Callsign lookup, band limits per license class, antenna wavelengths, location info, and more.

Why you need it: This app is a good Swiss army knife-style tool that puts a lot of useful info and features in one easy-to-use interface. Great when you need to look something up on the go.

• Best for: All classes
• Platform: Android, iOS
• Cost: $2.99
• Download: Google Play | App Store

8. Grid Square Locator — Best for: knowing your location format

What it does: Calculates your Maidenhead grid square from your GPS location.

Why you need it: Grid squares come up constantly — POTA, contests, satellite work, and digital modes all use them. Worth knowing how to find yours fast. This app is from the same developer who created Ham Radio Tools and is a simple, reliable way to find your current grid square number, where ever you are.

• Best for: All classes
• Platform: Android
• Cost: Free
• Download: Google Play

9. HamAlert — Best for: catching rare contacts

What it does: Pushes a notification when a station you're watching shows up on the bands. It pulls info from the DX Cluster, the Reverse Beacon Network, SOTAWatch, POTA, WWFF Spotline and PSKReporter to alert you whenever a desired contact is active so you can try to reach them.

Why you need it: Useful for contesting, award chasing, or just general callsign tracking. You can track the on-air activity of some celebrity callsigns or stations, follow a DXpedition and try to work a rare location, or just keep track of your family and friends.

• Best for: General+ (HF DX chasing)
• Platform: Android, iOS
• Cost: Free with premium options
• Download: Google Play | App Store

10. HF Propagation — Best for: knowing when the bands are open

What it does: Shows current HF (and VHF) propagation conditions at a glance, pulling solar and band data straight from hamqsl.com — the same source many hams put on their QRZ pages.

Why you need it: It gives you a quick read on whether 20 meters is wide open or dead before you waste an hour calling CQ into the void. Fair warning, and the app says so itself: these are predictions, and the only real way to know a band is open is to get on the air and listen. Like HamAlert, it earns its place once you're working HF.

• Best for: General+ (HF propagation)
• Platform: Android
• Cost: Free
• Download: Google Play

Bottom line: If you only grab three to start, make it HamStudy, RepeaterBook, and POTA on the GO. They'll keep you learning, keep you on the air, and get you outside with your radio — which is the whole point.