# K3iNetwork vs Antenna+

The clearest difference is price: Antenna+ at Free against K3iNetwork's $3.99. Antenna+ also leads on update cadence (every 5 weeks 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.

Antenna+ is free to download; K3iNetwork costs $3.99 up front. Antenna+ sells 2 in-app purchases, starting at $1.99 per month. K3iNetwork asks for nothing beyond the download.

K3iNetwork ships an update every 7 months, Antenna+ every 5 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | K3iNetwork | Antenna+ |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/antenna-plus-cwpdk31dtmf/id466305239/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Monetization | — | Paid |
| Size | 23 MB | 11 MB |
| Requires iOS | **17.2** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | +4 |
| Developer | [Mike Downs, ks7d](https://appshunter.io/developer/367909071) | [Verosocial Studio](https://appshunter.io/developer/354566841) |

## What reviewers say

### K3iNetwork

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

**In-app purchases:** none


### Antenna+

[App page](https://appshunter.io/ios/app/antenna-plus-cwpdk31dtmf/id466305239)

This toolkit offers amateur radio operators and RF hobbyists essential formulas and instant results for antenna design, feedline loss, and signal utilities. It includes calculators for antenna length, frequency conversion, VSWR, and propagation planning, along with DTMF and Morse code tools.

**Highlights:** Antenna length calculators, Frequency-to-wavelength conversion, VSWR and ERP calculators, Horizon visibility and solar calculators, DTMF decoding/keying, Morse/PSK31 tools

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly All Access Pro Usage | $1.99 | per month |
| Antenna Pro lifetime Upgrade | $14.99 | one-time |


## Frequently asked questions

### Is K3iNetwork free?

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

### Is Antenna+ free?

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

### Do K3iNetwork or Antenna+ have ads?

Neither K3iNetwork nor Antenna+ shows ads.

### Which is updated more often, K3iNetwork or Antenna+?

K3iNetwork ships an update every 7 months, and Antenna+ every 5 weeks. Most recently, K3iNetwork was updated on November 1, 2026 and Antenna+ on November 1, 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.*