Heathcliff Pro vs 2099 Techno
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heathcliff Pro
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Heathcliff Pro turns any iOS host into a DJ channel strip. Cut, mix, and blend one track into the next — without thinking about the right preset. Heathcliff Pro isn't your parametric EQ; it's the channel strip for transitions. Heathcliff Pro is built for low latency — aggressive performance targets keep it out of the way when you're playing live, and multiple instances won't tax your CPU. The tuning takes its cue from leading DJ mixers, with user-selectable character profiles so you can match the feel to your mixing style. * 3- or 4-band EQ — five character profiles from clean-cut to bleeding character * FX: Filter, Echo, Reverb, and Redux — switchable FX * Trim and volume — set the gain so the blend sits right * Character profiles — voicing presets for EQ, filter, and FX, matched to your mixing style * MIDI learn — supports legacy and modern 14-bit MIDI controllers (most modern DJ controllers are 14-bit). Map UI controls to your hardware; a DJ controller is the recommended way to play. * Low latency — plays live, stacks across multiple instances * AUv3 — works in any AUv3 host Note: Heathcliff Pro is an AUv3 plugin, not a standalone DJ app. The app runs inside a plugin host app like GarageBand, AUM, or Cubasis. Your DAW, your DJ moves. That's Heathcliff!
2099 Techno
This app generates unique electronic music tracks using chaotic mathematical principles. It offers multiple styles, virtual analog synthesis, and drum machines, with options for live play and MIDI export. All features are available for free.
- Generative track creation
- Virtual analog synth engine
- 909-style drum machine
- Chaos-driven melody and rhythm
- 8 distinct musical styles
- Live play and MIDI export
- Audio Unit integration
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2099 Techno writes complete tracks. Press generate and you get 76 bars with an intro, builds, two main sections, a breakdown and an outro, played by a virtual-analog engine and a 909-style drum machine. Bass, acid, stabs, pad, a lead line and the kit, through a dub delay, chorus and reverb. Nothing is sampled. Every note is made on the fly and no two tracks come out the same. The music comes from chaos maths. Three Lorenz attractors shape the melody, the rhythm and the mood. Three separate logistic maps run underneath the drums, the bass and the acid line, so they wander independently: turn the logistic control down and the hats and perc repeat every bar, turn it up and they never do. Chaos on its own is noise, so a small model filters it. It gets rewarded for consonant intervals and rehearses two hundred notes over the changes before it writes anything. The CHAOS / TASTE slider decides how much say each one gets. Eight styles, and they are properly different. Detroit rolls an off-beat bass under syncopated stabs. Dub Techno holds one chord for four bars and lets the delay do the work. Acid runs a 303 line with slides and accents. Hard pushes past 140 with a Reese bass and the drive up. Minimal takes most of it away. Every track is built from its seed. Write the seed down and you can have that exact track again, note for note, whenever you want it. You can play over it, too. The pads are the notes of the track's key rather than a piano keyboard, so nothing you touch is wrong, and the sixteen-step lane runs in time with the track and follows your host. Both play any part you like: bass, acid, stabs, pad or lead, through that part's sound and out on its MIDI channel. Choose which sections the lane plays in - just the breakdown, say - and preview it on its own without starting the track. Turn on RADIO and it keeps playing, picking a new key, mode, style, sound kit and tempo for each track. You also get: • 8 styles, 6 dark modes, 12 keys, tempo and density • Two-oscillator analog voice with sub, noise, resonant filter and glide • 22 presets and 9 sound kits, from Warehouse to Game Boy, plus random patch • Six-part mixer, dub delay, chorus, plate reverb and a global sweep filter • A PLAY panel: pads in the track's own key, and a 16-step lane with accent and slide, running in time with the track and only in the sections you pick • MIDI in, so your keyboard plays whichever part you have selected • MIDI export: six tracks, one per part • Live spectrum, waveform and a view of the chaos engine at work Two Audio Units, an instrument and a MIDI processor. Each part sends on its own MIDI channel, drums on 10, so one instance can drive six instruments. The MIDI version passes your keyboard through instead of swallowing it. Both follow your host's tempo and transport. One install registers both. The app is free and nothing in it is held back. Using the Audio Units inside other apps is a one-time purchase, and each AUv3 session plays for two minutes first so you can try them properly.
Screenshots
Verdict
The clearest difference is price: 2099 Techno at Free against Heathcliff Pro's $2.99. 2099 Techno also leads on update cadence (every 2 weeks vs every 4 weeks). Heathcliff Pro's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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
2099 Techno is free to download; Heathcliff Pro costs $2.99 up front. 2099 Techno sells 1 one-off in-app purchase. Heathcliff Pro asks for nothing beyond the download.
Heathcliff Pro ships an update every 4 weeks, 2099 Techno every 2 weeks. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.
| Parameter | Heathcliff Pro | 2099 Techno |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 13 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Juan Segovia | Soft Brew Mobile |
In-app purchases
Heathcliff Pro
No in-app purchases
2099 Techno
- AUv3 Unlock$2.99









