1. Home
  2. 🎵 Music
  3. Best Friend for K.O. II
Best Friend for K.O. II

Best Friend for K.O. II

App for EP-133, EP-40, EP-1320

64 ratings
18 reviews
#62 in paid Music
🎵 Music
$9.99

Details

Released
July 2, 2026
Updated
November 11, 2026

Developer

Brian Holt
✨Promote your app ✨
Best Friend for K.O. II video #1 for iPhone
Best Friend for K.O. II video #2 for iPhone
Best Friend for K.O. II video #3 for iPhone
Best Friend for K.O. II screenshot #4 for iPhone
Best Friend for K.O. II screenshot #5 for iPhone
Best Friend for K.O. II screenshot #6 for iPhone
Best Friend for K.O. II screenshot #7 for iPhone
Best Friend for K.O. II screenshot #8 for iPhone
Best Friend for K.O. II screenshot #9 for iPhone
Best Friend for K.O. II screenshot #10 for iPhone
Best Friend for K.O. II screenshot #11 for iPhone
Best Friend for K.O. II screenshot #12 for iPhone
Best Friend for K.O. II screenshot #13 for iPhone
iphone
ipad
📉no. 62
Charts↘︎
⭐18
Reviews↘︎
📝1+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 1 week
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app serves as an extended display and feature augmentation tool for specific hardware samplers. It allows users to manage hardware, upload and edit files, and customize pad settings. Advanced features include exporting audio stems, building custom chords, and comprehensive sample editing.

✓Extended display for hardware samplers
✓Upload and edit files
✓Export real audio stems
✓Build custom chords and use arpeggiator
✓Comprehensive sample editing tools
✓Backup and restore projects
✓MIDI controller functionality
Show original description
+2

What's New in Best Friend for K.O. II

3.5.1

November 11, 2026

Bug fixes

Charts

Top Paid

📉 62-6

Music

This app dropped -6 positions in Music chart.

Last updated on November 12, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Amazing work !

Outstanding, thanks!
FAFred Alarie

Please fix Chords and Key mode

Please fix the chords. For some reason sometimes samples aren’t playing as chords on the app, only playing as “one” instead of “key” mode. This also occurs on the KO II
AAaAjAAjAaA

Response from developer

Hi this is a hardware setting that needs to change, not a bug in Best Friend. Your sample needs to be in Keys Play Mode otherwise it will be monophonic. You can change it in Best Friend on Pads > Play Mode > Keys or from the hardware SHIFT + SOUND > use - and + to the first setting > turn the X knob until KEY. A Mute/Choke group will also prevent chords

rlly good !!

incredibly polished app with super quick connection from device to phone
WWOLFGIRRL

Amazing

Best app ever for KO II
MMy-black-rainberry

So good, loving it so far

Keep up the awesome work on this! Loving the app so far. Would be really cool if there’s a way to get the keyboard to be multi touch so can play chords, but I know you can still play them with the chord buttons.. so much fun to be had!
JJeoqw1
See 13 more reviews

Developer apps

Mother MIDI
Mother MIDI

MIDI Chord & Arp Controller

🎵 Music
$6.99
See developer apps

FAQ

Does Best Friend for K.O. II have ads?

No, Best Friend for K.O. II does not contain advertisements. It is a paid application designed to provide a seamless experience for users of Teenage Engineering EP-Series samplers.

What hardware is required to use Best Friend for K.O. II?

Connecting to a Teenage Engineering EP-133, EP-40, or EP-1320 sampler via USB-C is required for the app to function. This app acts as an extended display and feature augmentation for these specific hardware units.

How can I connect my iPhone or iPad to the sampler with Best Friend for K.O. II?

For Lightning iPhones and iPads, you can connect using a USB-IF certified USB-A to USB-C cable and a MFi-certified Lightning to USB adapter. This ensures compatibility for managing your sampler's functions.

What are the audio export capabilities of Best Friend for K.O. II?

Best Friend for K.O. II allows you to export real audio stems from every individual pad (up to 48), group mixdowns, or stereo mixdowns without AI separation. It also supports real-time bounces and MIDI data export.

Can I create custom chords and melodies with Best Friend for K.O. II?

Yes, you can build rich chords with a button, choosing from various triad types and extensions. The app also features a velocity-sensitive keyboard and an arpeggiator, all synced to the hardware clock.

What sample editing features are available in Best Friend for K.O. II?

The app offers extensive sample editing, including stem extraction, multi-sample building and editing, repitching, cropping, normalizing, reversing, and sample rate conversion. It also includes a suite of effects like EQ, compression, distortion, and reverb.

How often is Best Friend for K.O. II updated?

The latest version, 3.5.1, was last updated on November 11, 2026. While specific update frequency isn't detailed, the app has seen regular updates to enhance its functionality and compatibility.

What is the price of Best Friend for K.O. II?

Best Friend for K.O. II is available for a one-time purchase of $9.99. This price grants you full access to all its features for managing and enhancing your EP-Series sampler.