CoronaSDR vs EAS Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
EAS Tools
This utility app provides a suite of tools for managing emergency alert systems locally on your device. It includes features for decoding, encoding, generating text crawls, and manipulating audio and video files, all functioning offline.
- Full decoder
- Encoder
- Text crawl generator
- Audio splicer
- Phoneme converter/generator
- Video/audio muxer
- Offline functionality
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App‑based EAS / SAME Tools that run entirely locally on your phone. Packed to the brim with features, such as a full decoder, encoder, text crawl generator, audio splicer, phoneme converter/generator, and video/audio muxer. All tools are client‑side and work offline.
Screenshots
Verdict
The clearest difference is rating: CoronaSDR at 5.0 against EAS Tools's 4.2. CoronaSDR also leads on review sentiment (100% vs 69%). EAS Tools's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (17 vs 5). On price, ads, in-app purchases and monetization model 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.
CoronaSDR holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 17 respectively. Written reviews point the same way: 100% of CoronaSDR's written reviews are positive against 69% of EAS Tools's.
CoronaSDR ships an update every 3 weeks, EAS Tools weekly. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.
| Parameter | CoronaSDR | EAS Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.2 (17 ratings) |
| Positive reviews | 100.0% of reviews — better | 69.2% of reviews |
| Number of ratings | 5 | 17 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 74 MB |
| Age rating | 4+ | 12+ |
| Developer | Alien Systems S.R.L. | Mason Miller |
Customer experience
CoronaSDR
EAS Tools
In-app purchases
CoronaSDR
No in-app purchases
EAS Tools
No in-app purchases
