# CircuitSense vs CoronaSDR

The clearest difference is in-app purchases: CoronaSDR at none against CircuitSense's 2. CoronaSDR also leads on ratings volume (10 vs 2). CircuitSense's advantage is update cadence (every 3 days vs every 9 days) and iOS requirement (13.0 vs 18.0). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. CircuitSense sells 2 in-app purchases, starting at $9.99 per month. CoronaSDR asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for CircuitSense against 5.0 for CoronaSDR. That said, the two scores are not equally well evidenced: CoronaSDR has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

CircuitSense ships an update every 3 days, CoronaSDR every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | CircuitSense | CoronaSDR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/circuitsense/id6755273867/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/coronasdr-rtl-sdr-client/id6759222137/reviews) |
| Number of ratings | 2 | **10** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 37 MB | 5 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CircuitSense LLC](https://appshunter.io/developer/1850351250) | [Alien Systems S.R.L.](https://appshunter.io/developer/1047123293) |

## What reviewers say

### CircuitSense

[App page](https://appshunter.io/ios/app/circuitsense/id6755273867)

This app automates complex electrical calculations for electricians, including conduit sizing, conductor ampacity, and voltage drop, based on the 2026 NEC. It provides detailed explanations for each result and organizes calculations by project for easy access and professional output sharing.

**Highlights:** Automated conduit and conductor sizing, Voltage drop and derating calculations, Box fill and pull box sizing, Load calculations for various building types, Fault current and transformer sizing, Conduit bending and panel phasing tools, Offline functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CircuitSense Pro | $9.99 | per month |
| CircuitSense Pro | $79.99 | per year |


### CoronaSDR

[App page](https://appshunter.io/ios/app/coronasdr-rtl-sdr-client/id6759222137)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CircuitSense free?

CircuitSense 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, CircuitSense or CoronaSDR?

CircuitSense and CoronaSDR are both rated 5.0 out of 5 on the App Store, from 2 and 10 ratings respectively.

### Do CircuitSense or CoronaSDR have ads?

Neither CircuitSense nor CoronaSDR shows ads.

### Which is updated more often, CircuitSense or CoronaSDR?

CircuitSense ships an update every 3 days, and CoronaSDR every 9 days. Most recently, CircuitSense was updated on October 24, 2026 and CoronaSDR on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*