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Best Friend for K.O. II

Best Friend for K.O. II

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

7 ratings
5 reviews
#12 in paid Music
🎵 Music
$9.99

Details

  • Released
  • Updated
  • July 2, 2026
  • September 4, 2026

Developer

Brian Holt
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Best Friend for K.O. II screenshot #12 for iPhone
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iphone
ipad
📊no. 12
Charts↘︎
⭐5
Reviews↘︎
📝1+ tags
Tags↘︎
❓8 answered
FAQ↘︎
📦~ in 6 days
Updates frequency↘︎
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Icons↘︎

About

This app acts as an extended display and editing suite for Teenage Engineering EP-Series samplers. Connect your device via USB-C to view waveforms, manage pads, and edit samples with various tools like repitching, cropping, and EQ. It allows for bulk management and uploading of audio files from your device.

✓Extended display for EP-Series samplers
✓Waveform and pad setting visualization
✓Sample editing (trim, attack, release, pitch, pan)
✓Bulk sample upload and management
✓Audio extraction from videos
✓Sample repitching and normalization
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What's New in Best Friend for K.O. II

3.0

September 4, 2026

New Features: - See all of your sequenced notes and fader automation lanes across any Scene or Song. - Export multi-track audio stems of your Scenes or Song directly from the hardware. Every single pad is isolated using the REAL samples and data, all WITHOUT AI separation. - Make your own chord presets in the MIDI Controller. - Split the Keyboard into zones for easier alternate chords positions. - Add the lower octave to your chord. - Extract Projects from your System Backups - Audio Previews of your Project Backups - A brand new Library for managing and arranging your Backups, Bank Snapshots, and Bounces - iCloud support that automatically backs up and syncs Best Friend across all of your Apple devices - Automatic key detection of your samples - Animated onboarding guides for every screen Fixes: - Backups could fail when encountering a corrupted sample - Undo wouldn't fire when deleting Bank Snapshots or Backups - MIDI Controller could crash the hardware with too much data

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Charts

Top Paid

📊 12

Music

The app has maintained its position at 12 recently.

Last updated on September 12, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Very Good!

Amazing App, keeps getting better with every update!
HOTP1CKLEHOTP1CKLE

almost Works… sometimes

I thought this would be a practical app to backup projects on my iphone. on almost every project i tried it has issues and doesnt back up right. the design is nice but i would prefer it working . would not recommend.
quickcrusaderquickcrusader

Response from developer

Hi! I’ve done a fair bit of backup testing so I’m not sure what’s giving you a problem. Please send me a message at feedback@epbf.app and I’ll try to troubleshoot it.

Best Friend for my EP 133

Really liking the layout. So far it has been very easy to navigate. Still playing around and discovering but so far this has been very helpful as I am learning how to use EP133 KO II
moodyRussianmoodyRussian

Genial

Tolles Tool für den EP-133. Das wertet das Gerät noch ein paar Stufen höher auf mit den vielen Funtionen. Kein Abo, braucht kein Internet, besser geht’s nicht. (So etwas bräuchte ich auch für den OP-XY 😉)
Dankeschön an Brian. 🙏
100nano100nano

Response from developer

So happy you like it!

Works great!

Very happy to not have to have a laptop nearby to make adjustments to the ko2!
fuenciso_fuenciso_

Response from developer

Thanks so much!

FAQ

What is Best Friend?

Best Friend is a companion app designed to work with Teenage Engineering EP-Series samplers like the EP-133. It provides an extended display and advanced editing features for your sampler.

Do I need a Teenage Engineering sampler to use Best Friend?

Yes, connecting to an EP-133, EP-40, or EP-1320 via USB-C is required for the app to function. It acts as an augmentation for these physical devices.

What kind of sample editing features does Best Friend offer?

Best Friend allows for permanent cropping, repitching to reduce file size, normalization to increase volume, reversing playback, converting stereo to mono, changing sample rate, and applying a 3-band EQ.

Can I manage multiple samples at once with Best Friend?

Yes, the app supports bulk operations for uploading samples from your Files and Videos, deleting samples, moving samples, and sharing samples.

Is Best Friend free to download?

No, Best Friend is a paid application. It is available for purchase at $7.99.

Does Best Friend have ads?

No, Best Friend does not contain advertisements. It is a paid app with no in-app purchases or ads.

What devices does Best Friend support?

Best Friend is currently supported on iPhone devices. It requires a USB-C connection to your Teenage Engineering sampler.

How often is Best Friend updated?

The latest version of Best Friend is 2.2, and it was last updated on July 12, 2026. Updates typically occur to improve functionality and compatibility.