# K3iNetwork vs RadioEquations

The clearest difference is price: RadioEquations at Free against K3iNetwork's $3.99. RadioEquations also leads on update cadence (every 3 months vs every 7 months). K3iNetwork's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

RadioEquations is free to download; K3iNetwork costs $3.99 up front. RadioEquations sells 2 one-off in-app purchases. K3iNetwork asks for nothing beyond the download.

K3iNetwork ships an update every 7 months, RadioEquations every 3 months. The most recent releases landed on May 16, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | K3iNetwork | RadioEquations |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/radioequations/id6451230870/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 23 MB | 9 MB |
| Requires iOS | 17.2 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mike Downs, ks7d](https://appshunter.io/developer/367909071) | [Robert J Sarvis Jr](https://appshunter.io/developer/1531648349) |

## What reviewers say

### K3iNetwork

[App page](https://appshunter.io/ios/app/k3inetwork/id463639462)

**In-app purchases:** none


### RadioEquations

[App page](https://appshunter.io/ios/app/radioequations/id6451230870)

This utility app provides quick access to essential functions for radio telecommunications professionals. It includes helpful descriptions to ensure users understand each function, even if they are new to the field.

**Highlights:** Access to common radio telecommunications functions, Accompanying descriptions for comprehension, Designed for professionals in the field, Easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Advanced Functions | $0.99 | one-time |
| Unlock AC Functions | $0.99 | one-time |


## Frequently asked questions

### Is K3iNetwork free?

K3iNetwork costs $3.99, with no in-app purchases.

### Is RadioEquations free?

RadioEquations is free to download, with in-app purchases available.

### Do K3iNetwork or RadioEquations have ads?

Neither K3iNetwork nor RadioEquations shows ads.

### Which is updated more often, K3iNetwork or RadioEquations?

K3iNetwork ships an update every 7 months, and RadioEquations every 3 months. Most recently, K3iNetwork was updated on May 16, 2026 and RadioEquations on September 15, 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.*