2099 Techno vs PartyKeys Glow
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
2099 Techno
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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.
PartyKeys Glow
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Turn music theory into color. PartyKeys Glow lights up the keys of your PartyKeys keyboard so you can see scales and chords as colors ā right while you compose. Add PartyKeys Glow to any track in GarageBand as an Audio Unit. Pick a root note and a scale or chord, tap Light, and the matching keys glow in the exact colors your music maps to. Tap Clear to turn them off. Perfect for kids and beginners learning to play and compose ā see the notes light up instead of memorizing them. ⢠See any scale or chord as color on your real keyboard ⢠12 root notes, plus major, minor, modes and 12 chord types ⢠Works as an Audio Unit inside your favorite music apps ⢠Connects over Bluetooth MIDI ⢠A transparent effect ā it never changes your track's sound Requires a PartyKeys 36 keyboard connected over Bluetooth MIDI.
Screenshots
Verdict
The clearest difference is in-app purchases: PartyKeys Glow at none against 2099 Techno's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. 2099 Techno sells 1 one-off in-app purchase. PartyKeys Glow asks for nothing beyond the download.
2099 Techno ships an update every 2 days, PartyKeys Glow daily. Both last shipped on September 21, 2026.
| Parameter | 2099 Techno | PartyKeys Glow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | Daily ā better |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 15.0 ā better | 16.0 |
| Further details ā not scored | ||
| Size | 15 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Soft Brew Mobile | Beijing Visual & Sense Technology Co., Ltd. |
In-app purchases
2099 Techno
- AUv3 Unlock$2.99
PartyKeys Glow
No in-app purchases








