# Kxx Programmer's Reference — Essential programmer reference

> Essential programmer reference (iPhone/iPad app by Mike Downs, ks7d.)

- Source: https://appshunter.io/ios/app/kxx-programmers-reference/id367909068 (this page in markdown: same URL + `.md`)
- Developer: [Mike Downs, ks7d](https://appshunter.io/developer/367909071)
- Category: Reference, Utilities
- Price: $3.99
- Age rating: 4+
- Requires: iOS 17.1 · 6 MB
- Languages: American English
- Released: 2010-04-24
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/kxx-programmers-reference/id367909068/reviews.md

## What is Kxx Programmer's Reference?

Kxx Programmer's Guide is a handy reference to the Elecraft K3, K3S, KX3 & KX2 radios programming language in an easy to use iPhone/iPad format. It combines programmer reference information from the K3, K3S, KX3 and KX2 Owner's Manuals and Firmware Revisions to make it easy to find the information you need to program your radio.


## Version history (last 5 releases)

### 4.0 — 2024-01-05

Updated to iOS 17.1 and bug fixes and performance improvements

### 3.1 — 2020-09-26

* Dark Mode enabled.
* App upgrade to Apple Swift 5.0 programming language.
* Updated to support iOS 13.7 and iPhone 11.
* Changed font from Avenir to San Francisco.
* Updated to K3, K3S, KX3, and KX2 current programmer's reference details.
* Updated K3/K3S/KX3/KX2 Programmer's Reference to Revision G5, February 20, 2019.
* Updated K3/K3S Firmware Release Notes through January 22, 2019.
* Updated KX3 Firmware Release Notes through December 10, 2017.
* Updated KX2 Firmware Release Notes through June 8, 2020.

### 3.0 — 2017-11-27

* Major app upgrade to Apple Swift 4.0 programming language.
* Updated to support iOS 11 and iPhone X.
* Changed font from Sans Serif to Avenir.
* Updated to K3, K3S, KX3, and KX2 current programmer's reference details.
* Updated K3/K3S/KX3/KX2 Programmer's Reference to Revision G3, November 16, 2017.
* Updated K3/K3S Firmware Release Notes through May 15, 2017.
* Updated KX3 Firmware Release Notes through April 27, 2017.
* Updated KX2 Firmware Release Notes through October 5, 2017.

### 2.0 — 2016-09-30

* Major app upgrade to Apple Swift 3.0 programming language.
* App is now a universal app which means it runs in full screen with iPhones and iPads of all sizes.
* Updated to include K3S and KX2 radios.
* Updated to K3, K3S, KX3, and KX2 current programmer's reference details.
* Updated K3/K3S/KX3/KX2 Programmer's Reference to Revision F8, May 25, 2016.
* Updated K3/K3S Firmware Release Notes dated October 8, 2015.
* Updated KX3 Firmware Release Notes dated January 3, 2016.
* Added KX2 Firmware Release Notes dated May 20, 2016.

### 1.4.4 — 2013-10-04

* Updated to be consistent with look and feel of iOS 7.
* Updates to HTML files to improve compatibility with HTML 5.
* Minor corrections to text.

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## More apps by Mike Downs, ks7d

- [K3s Micro Manual](https://appshunter.io/ios/app/k3s-micro-manual/id404879421)
- [P3 Micro Manual](https://appshunter.io/ios/app/p3-micro-manual/id415419957)
- [K3iNetwork](https://appshunter.io/ios/app/k3inetwork/id463639462)
- [KX3 Micro Manual](https://appshunter.io/ios/app/kx3-micro-manual/id578011802)
- [K2 Micro Manual](https://appshunter.io/ios/app/k2-micro-manual/id591230037)

All apps by Mike Downs, ks7d: https://appshunter.io/developer/367909071

## Related topics

[kuf-13043](https://appshunter.io/ios/topics/kuf-13043) · [kk_0025xxx](https://appshunter.io/ios/topics/kk-0025xxx)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-15.*