Comparison

Cornerman for K.O. II vs PunchKit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cornerman for K.O. II

This app serves as a sample librarian for the Teenage Engineering EP-133 K.O. II sampler. It allows users to upload, download, and organize backups directly from their device. Note that it requires a USB-C connection and is only compatible with iOS devices featuring such ports.

Highlights
  • Sample librarian for EP-133 K.O. II
  • Upload and download backups
  • Organize and share backups
  • USB-C connection required
  • iOS device compatibility
Features
Read full description

Cornerman for K.O. II is a third party Sample Librarian for the Teenage Engineering EP-133 K.O. II Sampler Composer. The app doesn't make any sound by itself and is designed to work connected to the EP-133 via an USB-C connection. IMPORTANT: Please note that due to hardware limitations of the K.O. II the app is only compatible with iOS devices using USB-C ports. Power is provided by the mobile device for the EP-133 while connected. Features: - Upload and download backups from your K.O. II - Organize and share your backups with friends Drum Machine Funk is an independent software developer not affiliated with Teenage Engineering. We develop innovative apps for your favorite sampler and synthesizer.

About

PunchKit

This app serves as a local-first companion for specific music production devices, enabling users to build kits, manage samples, record audio, and perform live effects. It offers advanced features for MIDI sequencing, offline kit creation, and device management, all from an iPhone or iPad.

Highlights
  • Build and manage 12-pad kits offline
  • Layer MIDI machines for chords, melody, and bass
  • Record and process audio from microphone or USB inputs
  • Perform live effects with stackable Color and Motion options
  • Separate audio stems into vocals, drums, bass, and other
  • Backup and restore device banks, projects, and complete devices
  • Convert short videos into pixel-art backgrounds
Features
Read full description

PunchKit is a local-first companion for the Teenage Engineering EP-133 K.O. II, EP-1320 Medieval, and EP-40 Riddim. Build kits, manage samples, record and process audio, separate stems, perform live effects, and create dependable backups from your iPhone or iPad. MIDI PLAYGROUND - Layer independent Chords, Melody, and Bass machines beside a connected EP - Follow EP MIDI clock with retained-BPM fallback if pulses stop - Use Auto Key or choose key, scale, harmony, voicing, inversion, octave, and expression manually - Shape chord feel with strum order, groove, timing, humanization, velocity, and release - Build melody and bass phrases on 16-step note grids, with octave transposition while playing OFFLINE KIT BUILDER - Build and save 12-pad kits without connecting an EP - Browse and preview samples from Files, then assign them to pads - Trim or convert samples for EP limits - Import, export, duplicate, rename, and share kit archives - Connect later to upload a kit to a chosen project and group DEVICE AND SAMPLE MANAGEMENT - Automatically detect compatible EP devices over USB MIDI - Browse projects, groups, pads, assignments, sounds, and memory slots - Browse one shared local Sample Shelf across Library, Projects, and Kit Builder - Drag a complete folder, including nested folders, to a Library slot - Review each file's path, duration, source size, converted device size, and memory before upload - Remove or edit individual pending samples without changing shelf files - Choose free-slot or sequential placement and explicitly confirm overwrites RECORD, EDIT, AND PUNCH - Record from the microphone or compatible USB audio inputs in WAV or M4A - Use signal-activated recording, waveform trimming, playback controls, and original/rendered versions - Monitor processed USB audio live with adjustable level and latency - Capture beat-synced loops using MIDI, detected audio, or tap tempo, then scratch and perform them from the cassette - Apply stackable Color and tempo-synced Motion effects with Direct or XY controls - Build a custom 12-slot Punch It page PIXEL BACKGROUND STUDIO - Turn short videos from Photos into pixel-art backgrounds - Trim, frame, process, and arrange clips locally - Available with Lifetime Pro LOCAL STEM SEPARATION - Separate a take into vocals, drums, bass, and other - Choose Fast, Balanced, or Best quality - Download the optional model once, then process locally - Mix, save, share, bounce, or upload stems BACKUP AND RESTORE - Back up banks, projects, or the complete device - Add PunchKit ZIPs and TE Sample Tool PAKs to the library without an EP - Opt in to iCloud Drive backup sync across iPhone, iPad, and Mac - Review source-device compatibility warnings before restoring MADE FOR IPHONE AND IPAD - Adaptive portrait and landscape layouts - System, Light, and Dark appearances FREE TO START, PRO FOR UNLIMITED WORKFLOWS PunchKit is free to download. Connecting, browsing, previewing, playing, sharing, renaming, deleting, restoring backups, and using existing files remain available without limits. The free tier includes three successful take creations, one local kit creation and one complete kit upload, three successful sample writes, one stem separation, and one bank, project, and complete-device backup. Allowances count only after an operation succeeds. One optional Lifetime Pro purchase removes these limits. There is no subscription, and Pro supports Apple Family Sharing. On iPhone and iPad, people who first downloaded PunchKit before version 1.3 receive Lifetime Pro automatically as founding users. LOCAL-FIRST BY DESIGN No PunchKit account, ads, third-party analytics, or tracking. Optional iCloud Drive backup sync uses your Apple account. Other content stays local unless you share or export it. Diagnostic reports are sent only when you choose and exclude audio, sample and project contents, and filenames. DISCLAIMER PunchKit is independent and is not affiliated with or endorsed by Teenage Engineering.

Screenshots

Cornerman for K.O. II4 screens
PunchKit4 screens

Verdict

The call

The clearest difference is review sentiment: PunchKit at 97% against Cornerman for K.O. II's 20%. PunchKit also leads on rating (4.9 vs 2.5) and update cadence (weekly vs every 3 months). Cornerman for K.O. II's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cornerman for K.O. II sells 1 one-off in-app purchase and PunchKit sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PunchKit holds the better App Store score, 4.9 against 2.5. That said, the two scores are not equally well evidenced: PunchKit has 58 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 20% of Cornerman for K.O. II's written reviews are positive against 97% of PunchKit's.

UpkeepUpdate frequency

Cornerman for K.O. II ships an update every 3 months, PunchKit weekly. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

Scorecard5 real differences · 5 level
Cornerman for K.O. II versus PunchKit: the parameters behind the verdict, then further details
ParameterCornerman for K.O. IIPunchKit
PriceFreeFree
Rating2.5 (11 ratings)4.9 (58 ratings) — better
Positive reviews20.0% of reviews96.6% of reviews — better
Number of ratings1158 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS14.0 — better17.0
Further details — not scored
Size45 MB10 MB
Age rating4++4
DeveloperDelta Seven Kft.Kristaps Dreija

Customer experience

Cornerman for K.O. II

All ratings11 ratings
Positive36.4%
Neutral0.0%
Negative63.6%
Written reviews10 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

PunchKit

All ratings56 ratings
Positive98.2%
Neutral0.0%
Negative1.8%
Written reviews29 reviews
Positive96.6%
Neutral3.4%
Negative0.0%

In-app purchases

1 purchases

Cornerman for K.O. II

One-time1
  • Restore/Backup Functionality$14.99
4 purchases

PunchKit

One-time4
  • Small Tip$2.99
  • Generous Tip$5.99
  • Huge Tip$12.99
Show 1 more
  • PunchKit Pro Lifetime$14.99

Questions

Is Cornerman for K.O. II free?
Cornerman for K.O. II is free to download, with in-app purchases available.
Is PunchKit free?
PunchKit is free to download, with in-app purchases available.
Which has better reviews, Cornerman for K.O. II or PunchKit?
PunchKit is rated higher. Cornerman for K.O. II averages 2.5 out of 5 from 11 ratings, while PunchKit averages 4.9 from 58 ratings.
Do Cornerman for K.O. II or PunchKit have ads?
Neither Cornerman for K.O. II nor PunchKit shows ads.
Which is updated more often, Cornerman for K.O. II or PunchKit?
Cornerman for K.O. II ships an update every 3 months, and PunchKit weekly. Most recently, Cornerman for K.O. II was updated on November 4, 2026 and PunchKit on November 10, 2026.

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