# MorseKeyer vs KO3

The clearest difference is review sentiment: KO3 at 100% against MorseKeyer's 0%. KO3 also leads on price (Free vs $7.99) and update cadence (every 2 months vs every 42 months). MorseKeyer's advantage is chart position (#194 vs unranked) and iOS requirement (13.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

KO3 is free to download; MorseKeyer costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MorseKeyer ships an update every 42 months, KO3 every 2 months. The most recent releases landed on August 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | MorseKeyer | KO3 |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ko3/id6740637636/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#194** | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Yuri Wolf](https://appshunter.io/developer/1536591575) | [Kenneth Schmidt](https://appshunter.io/developer/1790918527) |

## What reviewers say

### MorseKeyer

[App page](https://appshunter.io/ios/app/morsekeyer/id1536591573)

**Currently charting:** #194 Top Paid · Lifestyle (US App Store)

This app simulates an electronic telegraph keyer with a dual-lever paddle for sending Morse code. It offers various keying modes, buffers paddle presses for higher speeds, and displays transmitted symbols, including international Morse code and extensions for multiple languages. It also recognizes and formats abbreviations used in amateur radio and other communications.

**Highlights:** Dual-lever paddle simulation, Dot and dash memories, Multiple keying modes (iambic, ultimatic, bug), Buffered paddle presses for speed, Support for international Morse code and language extensions, Recognition of CW abbreviations and prosigns, Smart text formatting and dynamic alphabet switching

**In-app purchases:** none


### KO3

[App page](https://appshunter.io/ios/app/ko3/id6740637636)

This app provides a cyberpunk-themed interface for displaying real-time data, including health and weather. It's designed for use on iPads and VisionOS devices, offering authentic cyberpunk UI and widget support.

**Highlights:** Authentic Cyberpunk UI, Real-time data readouts, Health and weather data displays, Widget support, Compatible with VisionOS, iOS, iPadOS, macOS

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MorseKeyer free?

MorseKeyer costs $7.99, with no in-app purchases.

### Is KO3 free?

KO3 is free to download, with no in-app purchases.

### Do MorseKeyer or KO3 have ads?

Neither MorseKeyer nor KO3 shows ads.

### Which is updated more often, MorseKeyer or KO3?

MorseKeyer ships an update every 42 months, and KO3 every 2 months. Most recently, MorseKeyer was updated on August 26, 2026 and KO3 on September 17, 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.*