ZPUNK vs ARC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZPUNK
Create music on the go with this pocket workstation. Build beats with drum kits and sequencers, sketch melodies with piano rolls, and chop samples. Arrange your ideas into songs and export them for further production.
- Drum sequencing with 27 kits
- Editable piano rolls for melodies
- Sample chopping and slicing
- Genre-based MIDI generation
- Multitrack arrangement timeline
- Built-in synthesis and effects
- Export to WAV and MIDI
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ZPUNK (zed punk) is a pocket music workstation for sketching beats, experimenting with sounds and turning musical ideas into grooves. Inspired by classic hardware grooveboxes, ZPUNK brings drum sequencing, synthesis, sample chopping and arrangement together in a touch-friendly portrait interface designed for creativity on the go. MAKE BEATS Build rhythms using 27 drum kits inspired by classic drum machines. Program beats with an eight-voice step sequencer, adjust velocities and experiment with different patterns and grooves. CREATE MELODIES Sketch basslines, synth leads and chord progressions using editable piano rolls. Explore instrument presets, shape sounds and develop melodic ideas that complement your rhythms. CHOP SAMPLES Import your own audio, detect beats, create slices and rearrange samples into new patterns. Experiment with sample chopping, tempo matching and rhythmic variations. GENERATE MUSICAL IDEAS Discover fresh inspiration with genre-based MIDI generation for House, Techno, Boom Bap, Breaks and more. Explore chord progressions, basslines and melodies with different styles, keys and variations. ARRANGE YOUR IDEAS Take your sketches beyond individual loops with a multitrack arrangement timeline. Layer patterns, experiment with sections and develop your musical ideas across five tracks: - Drums - Bass - Synth - Pads - Chops SOUND DESIGN AND MIXING Shape your sounds using built-in synthesis controls, effects and instrument presets. Balance your tracks with a dedicated mixer and discover new sonic combinations. EXPORT AND KEEP CREATING Export your musical sketches as WAV audio or MIDI files to continue developing them in your favourite music production software. MADE FOR MUSICAL EXPERIMENTATION Whether you're exploring Hip-Hop, House, Techno, Electro or something entirely your own, ZPUNK puts a creative music sketchpad in your pocket. No complicated setup. Just ideas, rhythms and experimentation. Listen. Play. Repeat.
ARC
Create music with a versatile groovebox featuring eight tracks for synths, samplers, and drums. Its intuitive interface allows for real-time performance and easy arrangement into songs, all while staying in key and scale.
- Eight dynamic tracks (synth, sampler, drums)
- Key and scale locked note/chord pads
- 16-pad sampler with import/record
- Deep synth editing and 25 arpeggiator patterns
- Full mixer with EQ and individual track effects
- Song mode for arrangement and live performance
- MIDI input and iCloud sync
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Eight tracks. Synths, samplers, drums. Play it like an instrument. ARC-24 is a groovebox for iPhone and iPad. Pads, loops, and a mixer in one place. Everything stays in key. Pick a key and a scale and the pads follow, so you can play fast without landing on a wrong note. Record a loop, keep overdubbing while it runs, and fix whatever you fumbled on the grid afterwards. Once you've got a few loops going, chain them into a song. Or leave the transport running and fire them off by hand from the mixer. • Eight tracks that sort themselves out. Synth, sampler, or drums, decided by what you play first. Overdub while the loop cycles. • Note and chord pads locked to your key and scale. Hold latches notes so they sustain. Pulse retriggers them on the beat. • A sixteen pad sampler. Import WAV, AIFF, MP3, M4A, AAC, or FLAC, pull audio from a video, or record through the mic. Chop it into slices across the grid, or map one sample over every pad and play it pitched, in scale or chromatic, at the original length or at tape speed. • Ten drum kits, from 909 and trap to lo-fi, boom bap, and hand percussion. Tune, pan, and level every pad. • Synth editing that goes deep enough to matter. 21 presets to start from, two oscillators, filter, envelope, and LFO when you want to build your own. Save the keepers. • 25 arpeggiator patterns, all of them in your key, from slow drifting phrases to sixteenth note runs. • A piano roll editor. Move, stretch, and delete notes while the loop keeps playing. • A real mixer. Faders, pan, mute, solo, and three band EQ on every channel. • Every track gets its own effects rack, not a shared send. Resonant low and high pass with cutoff and resonance. Compressor and gate. Distortion, bit crusher, ring mod, flanger. Tempo synced delay in digital, analog, or tape. Reverb with chorus and tape wow. Character for texture, air, width, and warmth. • Motion, so synth parts never sit still. Slow LFOs drift the filter as the loop runs, and Bloom opens the cutoff every time you play a note. • Song mode. Arrange loops into sections, or switch between them live from the mixer without ever stopping. • MIDI in from a USB or Bluetooth controller. • Export to WAV or AAC. • iCloud. Start something on the iPad, pick it up on the phone. Seven days free, the whole app. After that one purchase unlocks it for good. No subscription, no renewal, nothing to cancel.
Screenshots
Verdict
The clearest difference is price: ARC at Free against ZPUNK's $4.99. ARC also leads on review sentiment (33% vs 0%). ZPUNK's advantage is in-app purchases (none vs 2) and update cadence (daily vs weekly). On ads and device support 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
ARC is free to download; ZPUNK costs $4.99 up front. ARC sells 2 one-off in-app purchases. ZPUNK asks for nothing beyond the download.
ZPUNK ships an update daily, ARC weekly. The most recent releases landed on October 31, 2026 and October 22, 2026 respectively.
| Parameter | ZPUNK | ARC |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | — | 4.3 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 33.3% of reviews — better |
| Number of ratings | — | 3 — better |
| Update frequency | Daily — better | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 64 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanna Ragavan | Daelan Wood |
Customer experience
ZPUNK
ARC
In-app purchases
ZPUNK
No in-app purchases
ARC
- 7-Day TrialFree
- ARC-24 Full Version$9.99









