Comparison

Web MIDI Browser vs Cornerman for K.O. II

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

Head to head
About

Web MIDI Browser

This app functions as a web browser specifically designed for Web Apps utilizing the Web MIDI API. It enables Bluetooth MIDI connectivity for iOS devices, allowing interaction with compatible musical instruments through web applications.

Highlights
  • Web browser for Web MIDI API
  • Bluetooth MIDI functionality
  • Connects to Bluetooth MIDI instruments
  • Bridges web and MIDI worlds on iOS
Features
Read full description

Web MIDI Browser is a web browser for browsing Web Apps made with Web MIDI API. Web MIDI Browser can activate the Bluetooth MIDI functionality which is a new function of iOS 8. Instruments which support Bluetooth MIDI connectivity can be connected to Web Apps by using this App. Web MIDI API is a new web client API. It's being standardized as a part of HTML5. By utilizing the API, you can build web apps that interact with MIDI instruments, for example, keyboards, DJ controllers and so on. Originally, MIDI is a physical interface for connecting electric musical instruments to heighten expressiveness of playing music. But now it's used in many ways. Nowadays, web apps are a keystone of great services. If its power comes into the MIDI world, the usability of MIDI is likely to expand. Web MIDI browser can bridge both worlds in iOS.

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.

Screenshots

Web MIDI Browser2 screens
Cornerman for K.O. II4 screens

Verdict

The call

The clearest difference is rating: Web MIDI Browser at 3.1 against Cornerman for K.O. II's 2.5. Web MIDI Browser also leads on in-app purchases (none vs 1) and review sentiment (50% vs 20%). On price, ratings volume and ads 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. Web MIDI Browser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Web MIDI Browser holds the better App Store score, 3.1 against 2.5. Both are backed by a comparable volume of ratings — 16 and 11 respectively. Written reviews point the same way: 50% of Web MIDI Browser's written reviews are positive against 20% of Cornerman for K.O. II's.

UpkeepUpdate frequency

Web MIDI Browser ships an update fortnightly, Cornerman for K.O. II every 3 months. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

Scorecard7 real differences · 3 level
Web MIDI Browser versus Cornerman for K.O. II: the parameters behind the verdict, then further details
ParameterWeb MIDI BrowserCornerman for K.O. II
PriceFreeFree
Rating3.1 (16 ratings) — better2.5 (11 ratings)
Positive reviews50.0% of reviews — better20.0% of reviews
Number of ratings16 — better11
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS9.0 — better14.0
Further details — not scored
Size22 MB45 MB
Age rating17+4+
DeveloperTakashi MizuhikiDelta Seven Kft.

Customer experience

Web MIDI Browser

All ratings16 ratings
Positive43.8%
Neutral18.8%
Negative37.5%
Written reviews20 reviews
Positive50.0%
Neutral15.0%
Negative35.0%

Cornerman for K.O. II

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

In-app purchases

None

Web MIDI Browser

No in-app purchases

1 purchases

Cornerman for K.O. II

One-time1
  • Restore/Backup Functionality$14.99

Questions

Is Web MIDI Browser free?
Web MIDI Browser is free to download, with no in-app purchases.
Is Cornerman for K.O. II free?
Cornerman for K.O. II is free to download, with in-app purchases available.
Which has better reviews, Web MIDI Browser or Cornerman for K.O. II?
Web MIDI Browser is rated higher. Web MIDI Browser averages 3.1 out of 5 from 16 ratings, while Cornerman for K.O. II averages 2.5 from 11 ratings.
Do Web MIDI Browser or Cornerman for K.O. II have ads?
Neither Web MIDI Browser nor Cornerman for K.O. II shows ads.
Which is updated more often, Web MIDI Browser or Cornerman for K.O. II?
Web MIDI Browser ships an update fortnightly, and Cornerman for K.O. II every 3 months. Most recently, Web MIDI Browser was updated on September 21, 2026 and Cornerman for K.O. II on September 13, 2026.

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