Comparison

HamRadar vs CoronaSDR

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

Head to head
About

HamRadar

Instantly find and connect to amateur radio repeaters with a comprehensive database and an aircraft-style radar interface. View detailed information for over 62,000 active repeaters across all U.S. states, with offline access and Apple Watch complications.

Highlights
  • Offline repeater database
  • Aircraft-style radar sweep
  • Integrated compass
  • Configurable scan range
  • List view sorted by distance
  • Apple Watch complications
Features
Read full description

HamRadar makes finding and connecting to amateur radio repeaters a breeze. Instantly see nearby repeaters at a glance—online or offline. The app includes a database of over 62,000 active repeaters across all 50 U.S. states. Every listing provides: Callsign Frequency CTCSS/PL tone Distance & direction from your location HamRadar features an aircraft-style radar sweep animation with integrated compass bezel, configurable scan range up to 25 miles, list view sorted by distance, and Apple Watch complications showing nearby repeater count, frequency, tone, direction, and distance. Perfect for mobile operators, hikers, travelers, and anyone needing fast situational awareness of local repeater activity. Subscription & Free Trial Information HamRadar offers an optional HamRadar Annual Subscription, which unlocks full access after the trial period. Title: HamRadar Annual Subscription Length: 1 year (auto-renewing) Price: $9.99 per year Free Trial: Try all features at no cost during the trial period. After the trial ends, your subscription will automatically begin unless canceled at least 24 hours before the trial expires. Payment will be charged to your Apple ID account at confirmation of purchase (or after the trial ends if applicable). Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription anytime in your App Store account settings. Privacy & Terms By using HamRadar, you agree to our policies: Privacy Policy: https://www.gridbase.net/pages/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CoronaSDR

This application allows users to connect to and control RTL-SDR servers on their local network. It provides live spectrum and waterfall displays, various demodulation modes, and DSP controls for audio filtering and signal tuning. Users can save favorite stations and adjust RF settings.

Highlights
  • Live spectrum and waterfall display
  • Multiple demodulation modes (AM, NFM, WFM, USB, LSB, CW)
  • DSP controls (squelch, AGC, filters)
  • Station favorites with import/export
  • RF controls (PPM, tuner options)
  • Diagnostics and performance pipeline
Features
Read full description

CoronaSDR is an iOS app for listening to rtl_tcp SDR servers over your local network. Key features: - Live spectrum and waterfall rendering - Demodulation modes: AM, NFM, WFM, USB, LSB, CW - DSP controls: squelch, AGC, audio filters, de-emphasis - Station favorites with import/export - RF controls such as PPM and tuner options (hardware/server dependent) - Diagnostics and a performance-focused pipeline No account is required. Set your rtl_tcp host and port, connect, and tune. Built by Silviu YO6SAY for the radio community.

Screenshots

HamRadar4 screens
CoronaSDR3 screens

Verdict

The call

The clearest difference is rating: CoronaSDR at 5.0 against HamRadar's 3.8. CoronaSDR also leads on in-app purchases (none vs 1) and review sentiment (100% vs 67%). HamRadar's advantage is update cadence (daily vs every 9 days) and iOS requirement (16.2 vs 18.0). On price, ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HamRadar sells 1 in-app purchase, starting at $9.99 per year. CoronaSDR asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CoronaSDR holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews point the same way: 67% of HamRadar's written reviews are positive against 100% of CoronaSDR's.

UpkeepUpdate frequency

HamRadar ships an update daily, CoronaSDR every 9 days. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
HamRadar versus CoronaSDR: the parameters behind the verdict, then further details
ParameterHamRadarCoronaSDR
PriceFreeFree
Rating3.8 (6 ratings)5.0 (10 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings610 — better
Update frequencyDaily — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.2 — better18.0
Further details — not scored
Size16 MB5 MB
Age rating4+4+
DeveloperJacob KnightAlien Systems S.R.L.

Customer experience

HamRadar

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

CoronaSDR

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

HamRadar

Subscriptions1
  • United States$9.991 Year
None

CoronaSDR

No in-app purchases

Questions

Is HamRadar free?
HamRadar is free to download, with in-app purchases available.
Is CoronaSDR free?
CoronaSDR is free to download, with no in-app purchases.
Which has better reviews, HamRadar or CoronaSDR?
CoronaSDR is rated higher. HamRadar averages 3.8 out of 5 from 6 ratings, while CoronaSDR averages 5.0 from 10 ratings.
Do HamRadar or CoronaSDR have ads?
Neither HamRadar nor CoronaSDR shows ads.
Which is updated more often, HamRadar or CoronaSDR?
HamRadar ships an update daily, and CoronaSDR every 9 days. Most recently, HamRadar was updated on October 24, 2026 and CoronaSDR on October 24, 2026.

Other comparisons