Comparison

BTS for KATANA vs Extrack

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

Head to head
About

BTS for KATANA

Connect your BOSS KATANA:GO amplifier to your iOS device to edit tones, manage your sound library, and access a global community of guitarists. Share your own custom sounds and download presets created by others worldwide.

Highlights
  • Bluetooth connectivity
  • Tone editing
  • Tone librarian
  • Session function
  • Access BOSS TONE EXCHANGE
  • Share and download Livesets
Read full description

●Connect the BOSS KATANA:GO and your iPhone/iPad via Bluetooth(R) to use this app. * Set up the Bluetooth connection in the Connection window displayed after the app is launched. ●BOSS TONE STUDIO incorporates convenient functions; ‘Tone Edit Function’, ‘Tone Librarian Function’, and ‘Session Function’. ●This app provides an integrated access to the BOSS TONE EXCHANGE. Support share your original Livesets and download users Livesets around the world. * An active internet connection is required to access the BOSS TONE EXCHANGE. * To use BOSS TONE EXCHANGE, iOS15 / iPadOS15 or later is required.

About

Extrack

Instantly split songs into individual instrument parts and analyze chords in real-time. Adjust volumes, practice "minus one" style, and visualize chord fingerings for guitar or piano. Perfect for musicians of all levels looking to jam along with their favorite tracks.

Highlights
  • Instrumental stem separation
  • Real-time chord analysis
  • Adjustable instrument volumes
  • Practice 'minus one' mode
  • Visual chord fingering guides
  • Tempo and key adjustment
  • Section looping
Read full description

Play along with your favorite tracks. Extrack, an app that lets you split instruments and analyze chords, instantly. -You can use the basic features for free with no time limit. Subscribe, and you can unlock more advanced features. ・Separate songs into different instrument parts (vocal, guitar, piano, bass, drums, wind instruments) and freely adjust their volumes. ・Practice "minus one" style (mute one part and play it yourself). ・See the chords and how to play them on guitar or piano in real time while the song plays. ・Change the tempo, keys, or repeat specific sections easily. The app is very easy to use, even for beginners. ■When you feel like jamming with a band! -Load any song from your smartphone or tablet, and Extrack automatically separates it into each instrument part — such as guitar, drums, bass, piano, and wind instruments like saxophone. You can adjust the volume of each part freely, just the way you like. -If you’re a guitarist, turn down the other instruments and focus on the guitar sound to pick up even the most subtle phrase by ear. Then, switch the mix up, mute the guitar part and jam along with the rest of the band. It’s the closest thing to being on stage with your favorite artists! Want to tighten your rhythm? Turn up the drums and bass for focused practice. Or mute the vocals and enjoy singing along karaoke-style with real band sound! ■When you feel like jamming to that song you love! -Extrack automatically analyzes and displays the chord progression of any song. Even if you’re not good at figuring out chords by ear, you can enjoy jamming while watching the chords in real time. -It also shows how to play each chord on guitar or piano visually so even beginners who can’t read sheet music can feel confident. -Just load a song, and you can start practicing right away! If the song has chords that are too difficult, simply change the key or set a capo to make them easier to play. ■When you’re stuck on a part you’re having trouble with. -Want to play just one phrase over and over? -Want to slow down the tempo and practice carefully? -With Extrack, you can do it all easily. Simply select the section you want to repeat, skip by measure, or adjust the playback speed to match your pace. Plus, Extrack comes with a built-in metronome that automatically syncs with the song’s tempo, perfect for training your timing and rhythm. ■Just load your favorite song, and enjoy practicing with all of Extrack’s features. -Works with : MP3, AAC, FLAC, and more. -Add songs from iTunes or your CDs and start playing! - You can even import songs directly from cloud storage services.

Screenshots

BTS for KATANA4 screens
Extrack4 screens

Verdict

The call

The clearest difference is rating: Extrack at 3.8 against BTS for KATANA's 3.1. Extrack also leads on review sentiment (37% vs 28%). BTS for KATANA's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 17.0). On price, ratings volume, update cadence 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. Extrack sells 2 in-app purchases, starting at $5.99 per month. BTS for KATANA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Extrack holds the better App Store score, 3.8 against 3.1. Both are backed by a comparable volume of ratings — 21 and 24 respectively. Written reviews point the same way: 28% of BTS for KATANA's written reviews are positive against 37% of Extrack's.

UpkeepUpdate frequency

BTS for KATANA ships an update every 2 months, Extrack every 6 weeks. The most recent releases landed on September 3, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
BTS for KATANA versus Extrack: the parameters behind the verdict, then further details
ParameterBTS for KATANAExtrack
PriceFreeFree
Rating3.1 (21 ratings)3.8 (24 ratings) — better
Positive reviews27.8% of reviews36.8% of reviews — better
Number of ratings2124 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size26 MB604 MB
Age rating4+4+
DeveloperRoland CorporationYamaha Corporation

Customer experience

BTS for KATANA

All ratings21 ratings
Positive42.9%
Neutral19.0%
Negative38.1%
Written reviews54 reviews
Positive27.8%
Neutral18.5%
Negative53.7%

Extrack

All ratings24 ratings
Positive62.5%
Neutral16.7%
Negative20.8%
Written reviews38 reviews
Positive36.8%
Neutral15.8%
Negative47.4%

In-app purchases

None

BTS for KATANA

No in-app purchases

2 purchases

Extrack

Subscriptions2
  • Monthly Plan7 Days trial$5.991 Month
  • Yearly Plan7 Days trial$39.991 Year

Questions

Is BTS for KATANA free?
BTS for KATANA is free to download, with no in-app purchases.
Is Extrack free?
Extrack is free to download, with in-app purchases available.
Which has better reviews, BTS for KATANA or Extrack?
Extrack is rated higher. BTS for KATANA averages 3.1 out of 5 from 21 ratings, while Extrack averages 3.8 from 24 ratings.
Do BTS for KATANA or Extrack have ads?
Neither BTS for KATANA nor Extrack shows ads.
Which is updated more often, BTS for KATANA or Extrack?
BTS for KATANA ships an update every 2 months, and Extrack every 6 weeks. Most recently, BTS for KATANA was updated on September 3, 2026 and Extrack on September 22, 2026.

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