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DrumFlex vs Atlas 2

Atlas 2 and DrumFlex are different kinds of tool. Atlas 2, from Algonaut, is built on samples: its tagline is "Turn samples into music", and its maker describes AI that finds and organizes your drum sounds. DrumFlex is an acoustic drum kit you play from a MIDI file, a keyboard or an electronic kit. To arrange your own samples into pads and sequences, Atlas 2 is the better fit. For a kit that plays a drum part, DrumFlex is.

What they have in common

A program and a plugin on Windows, standalone and VST3.
MIDI at the center. Atlas 2 imports MIDI by drag and drop and exports its sequences as MIDI. DrumFlex opens and plays a MIDI file.
Audio files. Atlas 2 exports audio loops. DrumFlex renders a MIDI file to FLAC, or to WAV with the included command-line renderer, and records what you play.
Try before you buy. Atlas 2 has a 14-day trial. DrumFlex has a demo you can download and try before you buy.

Where Atlas 2 stands out

Your samples, sorted for you. Its maker describes AI that finds and organizes your drum sounds.
Maps and pads. Multiple maps, with pad layouts of 1x8, 2x8, 4x4 and 8x8, and a 1500 drum sample map included as an optional download.
A sequencer. Build patterns on its pads and export them as MIDI or audio loops.
Mac, Linux and Windows. macOS from 10.13 (Intel) or 11 (Apple Silicon) to 15, Windows 7 to 11, and Linux on Ubuntu 16.04 onward, with AU and AAX plugins as well as VST and VST3.
Three machines. Atlas can be installed on three.
Expansions. Premium packs of at least 100 drum kits and sequences each, and kits, sequences and loops included to start.
$99, or $19 to upgrade.

Where DrumFlex stands out

An acoustic kit, modeled, not sampled. Kick, snare, hi-hat, three toms, ride, two crashes, china and splash, with nothing played from recordings.
Kits you shape. Stick hardness, tuning, ring, snare wires, each piece's tuning and muffle, the kick's beater, and a level for each part of the kit.
A drummer's strokes. Cross-stick, rimshot, buzz stroke and brush sweep, ride bow, bell and edge, and cymbals that can be stopped. Brushes by controller 85.
Plays from a keyboard or an electronic kit, on General MIDI drum keys on any channel (it doesn't read the hi-hat pedal's controller or cymbal chokes by aftertouch).
Small. A 14.2 MB download, with no sample library to install.
No internet. A license key and your email address, entered once for each Windows user on each computer, no account, no online activation, one license for one person, to use on all of their own computers. It never connects to the internet. Atlas 2 asks for an internet connection to authorize.
$79, one time.

Which to pick

For arranging your own samples into pads and sequences: Atlas 2.
On a Mac or Linux: Atlas 2.
For a drum kit that plays a MIDI file or a band part: DrumFlex.
For an acoustic kit you can tune and shape, with no account and no internet: DrumFlex.

Owning both

One builds beats from sounds you collect, the other plays a kit you shape, so they don't compete for the same job. Atlas 2's trial is on algonaut.audio; DrumFlex's demo is here. This page doesn't compare how they sound. That's for your ears.

The facts side by side

Every fact about Atlas 2 is from Algonaut's own pages, checked on 7 November 2026. Prices are list prices in US dollars; sales come and go.

	DrumFlex	Atlas 2
How it makes its sound	Modeled. It computes every hit as it is played, from the drumheads, the stick, the snare wires and the cymbals. It plays no recordings.	Sample-based: "Turn samples into music" (the maker's words); its AI sorts your drum sounds.
Price	$79, one-time	$99; upgrade $19
Download and disk space	14.2 MB download, 31.4 MB installed	Not stated on the maker's pages
Memory the maker asks for	4 GB, with 4 cores or more and 100 MB of disk (the minimum we state for every Flex program)	Not stated on the maker's pages
Runs on	Windows 10 and 11, 64-bit	Windows 7, 8, 10 and 11; macOS 10.13 to 15 (Intel) and macOS 11 to 15 (Apple Silicon); Linux (Ubuntu 16.04 onwards)
Forms	Standalone and VST3	Standalone, VST, VST3, AU, AAX
Needs another program	Nothing else	Nothing else (a host for the plugin forms)
Copy protection	A license key and your email address, entered once for each Windows user on each computer. No account and no online activation.	Needs an account login and internet authorization, then works offline
Computers per license	One license for one person, to use on all of their own computers	3 machines
Demo	A demo to download and try before you buy	14-day trial with all features unlocked
Kits and sounds included	Kits for metal, rock, pop, funk, jazz, smooth jazz, ballad and Latin, and a starting Session Kit; four slots to layer kits	A 1,500-sound drum map (optional download), free kits, sequences and loops

More: virtual drums compared: modeled, sampled and drum machines, a table of 27 products, and all about DrumFlex.

If something here is out of date, write to [email protected] and we'll correct it.

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