MIDIHuman Drums vs The Keystone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDIHuman Drums
This plugin humanizes drum MIDI performances, adding natural timing and feel to quantized drum programming for live looping and production. It offers independent control over timing and velocity for different drum voices, along with advanced quantization and swing features.
- Quantize with Pullback Capping
- Swing for groove
- Per-voice timing and velocity control
- Channel filtering
- Play-to-Switch auto-toggle
- Factory presets
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MIDIHuman Drums is an Audio Unit MIDI plugin that humanizes drum performances. Built for live looping and production workflows, it adds natural timing and feel to quantized drum programming. FEATURES: Quantize with Pullback Capping — Snap notes to grid (8th, 8th triplet, 16th, 16th triplet, 32nd) with intelligent pullback that never drags live looping behind the beat. Swing — Offset off-beat notes by a percentage for pocket and groove. Per-Voice Humanization — Independent timing and velocity control for kick, snare/stick, and hi-hat/ride: • Late % — Probability a note plays slightly behind the beat • Miss % — Probability a note is dropped entirely • Velocity Nudge — Add or subtract velocity per voice • Velocity Variation — Random symmetric velocity variation across all notes Channel Filtering — Process only specified MIDI channels, leaving others untouched. Play-to-Switch — Auto-toggle between snare/stick or hat/ride based on incoming note. Factory Presets — Clean, Tight Human, Loose Pocket, and Deep Swing starting points. Requires a compatible Audio Unit host (Loopy Pro, Logic Pro, Ableton Live, GarageBand, etc.).
The Keystone
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The Keystone dials in the sound and spirit of the early-’70s Bay Area club scene to your iPhone and iPad. More than half a century later, that music is still being played—and guitarists are still chasing those tones. Connect to your audio interface, direct to your studio, powered speakers or headphone, or send to an amp and play live. Musician and developer Mike Lawson spent years performing and recording with Merl Saunders and recording/playing with musicians from that scene. The Keystone grew out of those experiences and decades of chasing the sound as a working guitarist. He created this rig from his own live and studio settings, pedals, from authentic schematics and calibrations to his own live rig. The Keystone puts a little of that magic within reach, without the vintage-gear hunt. At the center is Quackmaster III: a touch-sensitive envelope filter with the deep, vocal quack that makes this style of guitar playing so much fun. Around it are bell-like cleans, warm amplifier breakup, singing sustain, spring reverb, phase, octave and delay, even per-accurate amps with their mods. Choose from 65 factory presets or turn the knobs and find your own sound. The effects and settings, attention to details and a few Easter eggs, this is a fun to use as it is to play through. The Keystone includes both the standalone app and an AUv3 plug-in for GarageBand, Logic Pro for iPad and other compatible iOS hosts. Plug into a compatible audio interface to play through the app, or use the plug-in in your recording sessions. One purchase includes the complete rig and AUv3 plug-in for iOS. No subscriptions, no ads, no account required. Just all good things in all good time. Support: support@artistpro.com
Screenshots
Verdict
The clearest difference is price: MIDIHuman Drums at $3.99 against The Keystone's $19.99. The Keystone's advantage is iOS requirement (15.0 vs 18.6). On ads, in-app purchases 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
MIDIHuman Drums costs $3.99 and The Keystone $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | MIDIHuman Drums | The Keystone |
|---|---|---|
| Price | $3.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | BRADLEY WAYNE MYERS | artistpro, LLC |
In-app purchases
MIDIHuman Drums
No in-app purchases
The Keystone
No in-app purchases









