Comparison

C.HOP vs pUnKGeN

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

Head to head
About

C.HOP

This portable tool allows musicians to create vintage vocal chops by automatically chopping audio based on a set threshold. Users can export their creations to a DAW or play them directly within the application, blending old-school inspiration with modern audio editing.

Highlights
  • Portable vocal chopper
  • Automatic audio chopping
  • Adjustable threshold
  • Export to DAW
  • In-app playback
  • Vintage sound inspiration
Features
Read full description

From C.ARP development team: C.HOP is your portable, old-fashioned, vocal chopper. Just set the threshold and chop automatically everything you listen to. Create your chops and export them into your DAW. Or just play right in the app! Useful tool for musicians. Inspired by old machines it is combined with modern techniques of audio editing.

About

pUnKGeN

Create heavy rock, thrash metal, punk, and goth style sequences and loops with a 6-channel pattern groovebox and guitar riff generator. Features independent effects, filters, tuning, and ducking for each track, with options to generate, modify, or manually enter riff patterns.

Highlights
  • 6-channel pattern groovebox
  • Guitar riff generator
  • Independent track effects
  • Manual note entry
  • Scale and shuffle patterns
  • Arpeggiate function
  • MIDI and Ableton Link support
Features
Read full description

Punk Syn Gen A 6 channel pattern groovebox and guitar riff generator for creating heavy rock, thrash metal, punk, and goth style sequences and loops. HEAVY METAL! Create mysterious 80s dark metal loops or create random riffs and drum loops with bass guitar licks. With 2 dedicated guitars, bass, synth and also drum tracks. Whether you play the guitar or not, use this app to come up with new ideas, ideas that you would never have dreamed of. ROCK ON! You can use this app as a guitar riff generator to make whole interesting goth or punk /thrash style sample loops. Every track has independent effects, filter, tuning and ducking ( similar to side chain compression) Generate, modify or manually enter riff patterns with "power" levels. Many different ways to generate or modify patterns that intelligently conform the patters for each instrument. Adding a note manually is easy. Place a note and adjust the power level from small strum, to powerchords for guitars. Power level in Guitar 1 allows you to add single note, single muted or power chords to create thrash riffs. Power level in synth gives you different pad type sounds. Two duplicate drum tracks with some basic drum kit sounds to give you some backing Bass Guitar power level goes from soft touch to slap bass. You can simply generate all day long with one button and it will create a scale, and riffs for every track. If you like the pattern but not the notes, choose your scale and rescale one or many tracks at the same time If you dont like the riff, shuffle it If you want an arpeggio but using a riff, make a riff pattern then press arpeggiate, cycles through arpeggio modes You can freely transpose the entire composition You can play one bar at a time or chain up to 4 bars Half or quarter the playback speed independently on each track so 64 steps plays slower equivalent to 256 steps. Thrash algorithm patterns have been influenced from bands like Metallica and Faith no More. In Fact Faith No More inspired us to use synth strings. Create ideas you wouldn't think of using scales and riffs. Whether you are a fan of Metallica riffs or punk, you can never tell what you'll get when it generates all tracks. Some chaos is also added to the generation of riffs. Many affects can be added from purposely adding bend, echo, reverb, extra distortion for even more thrash metal sound and resonating low pass filters to create mysterious and moody goth style patterns. This app is part of a family of apps: 6x808 - a drum sequencer, 2xb303 a TB303 sequencer, 7XdXfm - a 7 track-4 operator FM synth, 7XWave - a sample manipulation groovebox. Unique to this, the step edits are removed, and replaced with a dedicated piano roll for placing notes in a grid representing pitch and time. Like all the other apps, MIDI is included for sync as well as Ableton Link and Inter App Audio so you can route the audio to Audiobus/AUM Output note data on each channel too. You can sample whats playing anytime and it will record a sampled loop you can export to Audioshare or clipboard/email

Screenshots

C.HOP4 screens
pUnKGeN4 screens

Verdict

The call

The clearest difference is review sentiment: pUnKGeN at 44% against C.HOP's 0%. pUnKGeN also leads on rating (3.2 vs 2.0) and update cadence (every 3 days vs every 35 months). C.HOP's advantage is price ($0.99 vs $1.99). On ratings volume, 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

C.HOP costs $0.99 and pUnKGeN $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

pUnKGeN holds the better App Store score, 3.2 against 2.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 0% of C.HOP's written reviews are positive against 44% of pUnKGeN's.

UpkeepUpdate frequency

C.HOP ships an update every 35 months, pUnKGeN every 3 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
C.HOP versus pUnKGeN: the parameters behind the verdict, then further details
ParameterC.HOPpUnKGeN
Price$0.99 — better$1.99
Rating2.0 (4 ratings)3.2 (5 ratings) — better
Positive reviews0.0% of reviews44.4% of reviews — better
Number of ratings45 — better
Update frequencyEvery 35 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size9 MB61 MB
Age rating4+4+
DeveloperPaolo GiorgiRob Wilmot

Customer experience

C.HOP

All ratings4 ratings
Positive0.0%
Neutral50.0%
Negative50.0%
Written reviews4 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

pUnKGeN

All ratings5 ratings
Positive40.0%
Neutral40.0%
Negative20.0%
Written reviews9 reviews
Positive44.4%
Neutral33.3%
Negative22.2%

In-app purchases

None

C.HOP

No in-app purchases

None

pUnKGeN

No in-app purchases

Questions

Is C.HOP free?
C.HOP costs $0.99, with no in-app purchases.
Is pUnKGeN free?
pUnKGeN costs $1.99, with no in-app purchases.
Which has better reviews, C.HOP or pUnKGeN?
pUnKGeN is rated higher. C.HOP averages 2.0 out of 5 from 4 ratings, while pUnKGeN averages 3.2 from 5 ratings.
Do C.HOP or pUnKGeN have ads?
Neither C.HOP nor pUnKGeN shows ads.
Which is updated more often, C.HOP or pUnKGeN?
C.HOP ships an update every 35 months, and pUnKGeN every 3 days. Most recently, C.HOP was updated on October 24, 2026 and pUnKGeN on October 24, 2026.

Other comparisons