SwarmaDie 2 vs HeadStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SwarmaDie 2
Create organic and evolving soundscapes with this polyphonic synthesizer. It features 8 oscillators, a dynamic swarm filter, and dual multitouch ribbons for expressive control. Save and recall your custom sounds with the preset bar.
- 8 Oscillators with Swarm Control
- Dynamic Swarm Filter
- Dual Multitouch Ribbons
- ADSR Controls
- Preset Bar (Factory + User)
- AUv3 Plugin and Standalone App
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SwarmaDie 2 is a polyphonic synthesizer inspired by the legendary analog Dewanatron Swarmatron, originally designed by Brian and Leon Dewan in 2011. With 8 independent oscillators, dynamic swarm filter, two multitouch ribbons playable simultaneously, and complete ADSR controls, you can create organic and ever-changing sound textures. FEATURES: • 8 Oscillators with Pitch Floor, Range, and Swarm Control • Swarm Filter with dynamic tracking • Two Multitouch Ribbons (Pitch + Swarm) playable simultaneously • Preset Bar (Factory + User) • AU Plugin (AUv3) + Standalone • Touch-friendly interface inspired by the original hardware panel AUDIO CONTENT: SwarmaDie 2 is a synthesizer: it contains no pre-recorded music, only professional audio generation tools. COMPATIBILITY: Requires iOS 14.0 or later. Works as a standalone app and as an AU audio plugin (AUv3) in compatible DAWs.
HeadStack
This app offers a virtual tape loop with 8 independently configurable playback heads for creating diverse echo effects. It captures the warmth of classic tape machines while offering modern flexibility for sound design, from vintage echoes to evolving ambient textures.
- Multi-head tape engine with 8 playback heads
- Vintage tape character and imperfections
- Independent control for each playback head
- Rotating head wheel for dynamic effects
- Granular harmony engine for pitch-shifted textures
- Per-head modulation and creative feedback routing
- Diffusion and smearing for atmospheric washes
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HeadStack is a multi-head tape delay inspired by the character, movement and musicality of classic magnetic echo machines, reimagined for modern production. At its heart is a virtual tape loop with 8 independently configurable playback heads. Each head can be positioned, levelled and panned to create everything from vintage slap-back echoes and rhythmic repeats to vast stereo soundscapes and evolving ambient textures. While HeadStack captures the warmth and unpredictability of classic tape systems, it is not limited by their mechanical constraints. Individual heads can be modulated, filtered, diffused, pitch-shifted and transformed into granular playback engines, opening up a palette that ranges from authentic analogue echoes to shimmering harmonies and cinematic atmospheres. The tape itself becomes an instrument. Rotate the head wheel to continuously reposition playback points, stretch the spacing between heads, introduce head loss, or create cascading feedback networks that evolve with every repeat. Independent filtering, stereo placement and modulation allow each head to develop its own character within the delay line. You can even play sequences Into HeadStack and freeze it using your hold pedal and continue to play over the top. Whether you’re searching for vintage tape ambience, rhythmic multi-tap delays, lush granular harmonies or experimental feedback textures, HeadStack combines the soul of a classic tape echo with the flexibility of a modern creative effects processor. Welcome to a new generation of tape delay. HeadStack Features: Multi-Head Tape Engine - Create complex rhythmic delays using multiple independently controllable playback heads running on a shared virtual tape loop. Vintage Character - Capture the warmth, movement and musical imperfections of classic tape echo machines with adjustable tape loss, filtering and feedback behavior. Independent Head Control - Each playback head features its own level, pan, timing offset and tonal shaping, allowing intricate delay patterns and evolving stereo textures. Rotating Head Wheel- Continuously reposition or stretch the virtual head arrangement to create shifting rhythms, moving echoes and dynamic performance effects. Granular Harmony Engine - Transform individual heads into pitch-shifted granular voices, generating harmonies, octave layers and shimmering textures directly from the tape loop. Per-Head Modulation - Add movement and expression with independent modulation of playback position, spacing, tremolo and stereo placement. Creative Feedback Routing - Choose between traditional multi-head feedback or route feedback from a specific playback head for unique echo patterns and evolving repeats. Diffusion & Smearing - Blend between precise rhythmic echoes and spacious, atmospheric washes using integrated diffusion processing. Deep Stereo Imaging - Create anything from focused mono echoes to wide immersive soundscapes with per-head panning, Haas delay and stereo enhancement controls. Performance Ready - Designed for real-time interaction, encouraging hands-on manipulation of head positions, modulation and feedback while performing. Precision & Experimentation - Dial in authentic tape echoes, lush ambient delays or push the engine into unpredictable granular and feedback-driven territories. Modern Workflow - Combines the immediacy of classic hardware with the flexibility, recall and precision expected from a contemporary audio plugin. Interactive Head Wheel - Grab and rotate the virtual head wheel to reposition playback heads, create evolving delay patterns and perform dramatic tape-style scrubbing effects. Dynamic Tape Warping- Enable Rotate and Stretch modes to continuously morph the spacing and timing between playback heads, transforming static echoes into living, breathing rhythmic textures. Freeze Buffer - Freeze the contents of the audio buffer using a foot pedal, capture ideas and play over the top.
Screenshots
Verdict
The clearest difference is price: SwarmaDie 2 at $4.99 against HeadStack's $12.99. SwarmaDie 2 also leads on update cadence (every 3 days vs every 9 days). HeadStack's advantage is review sentiment (100% vs 80%). On rating, ratings volume, ads and in-app purchases 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
SwarmaDie 2 costs $4.99 and HeadStack $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.
HeadStack holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 6 and 7 respectively. Written reviews point the same way: 80% of SwarmaDie 2's written reviews are positive against 100% of HeadStack's.
SwarmaDie 2 ships an update every 3 days, HeadStack every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | SwarmaDie 2 | HeadStack |
|---|---|---|
| Price | $4.99 — better | $12.99 |
| Rating | 4.7 (6 ratings) | 4.9 (7 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 | 7 — better |
| Update frequency | Every 3 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 14 |
| Further details — not scored | ||
| Size | 19 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Diego Capoccitti | 4Pockets.com |
Customer experience
SwarmaDie 2
HeadStack
In-app purchases
SwarmaDie 2
No in-app purchases
HeadStack
No in-app purchases








