# Keelin vs SatRadio

The clearest difference is update cadence: Keelin at every 3 months against SatRadio's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Keelin ships an update every 3 months, SatRadio every 10 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Keelin | SatRadio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/satradio/id1497481844/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | — | Free |
| Size | 7 MB | 8 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [佳喜 肖](https://appshunter.io/developer/791981887) | [Dioptase](https://appshunter.io/developer/376559675) |

## What reviewers say

### Keelin

[App page](https://appshunter.io/ios/app/keelin-beacon/id1463471003)

**Features:** macOS Compatibility

**In-app purchases:** none


### SatRadio

[App page](https://appshunter.io/ios/app/satradio/id1497481844)

This app provides essential tools for radio and satellite communication engineers. It includes calculators and analysis features for antenna parameters, frequency calculations, link budgets, and modem performance. It also offers miscellaneous utilities for RF engineering tasks.

**Highlights:** Dish antenna analysis (axial ratio, gain, line of sight), Frequency calculations (phase noise, doppler, wavelength), Radio link analysis (coaxial losses, mismatch losses, EIRP), Modem performance metrics (C/N, C/I, PER, BER), Miscellaneous RF engineering utilities (dB calculator, converters)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keelin free?

Keelin is free to download, with no in-app purchases.

### Is SatRadio free?

SatRadio is free to download, with no in-app purchases.

### Do Keelin or SatRadio have ads?

Neither Keelin nor SatRadio shows ads.

### Which is updated more often, Keelin or SatRadio?

Keelin ships an update every 3 months, and SatRadio every 10 months. Most recently, Keelin was updated on October 26, 2026 and SatRadio on November 3, 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.*