# Battalion - Drum Machine — Synth, Sampler, & Sequencer > Advanced drum machine with synth, sampler, and sequencer for music production. (iPhone/iPad app by Unfiltered Audio.) - Source: https://appshunter.io/ios/app/battalion-drum-machine/id6743767101 (this page in markdown: same URL + `.md`) - Developer: [Unfiltered Audio](https://appshunter.io/developer/1638381375) - Category: Music - Price: $39.99 - Rating: 4.60/5 from 33 App Store ratings · 24 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 1.2 GB - Released: 2025-06-17 - Data updated: 2026-08-25 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/battalion-drum-machine/id6743767101/reviews.md ## What is Battalion? "A deep world to get lost in - This delivers that in spades!" - Jamie Lidell, Hanging Out With Audiophiles Unfiltered Audio is back on iOS with its instant classic Battalion, perhaps the most advanced drum machine available on any platform. Battalion includes over 20 synthesis algorithms and 5 sampler algorithms, each built for advanced sound design via simple controls. All eight drum channels can use both samples and synthesis simultaneously. 11 filter modes and 11 distortion algorithms add further sculpting options to each voice. Additionally, all eight drum channels contain rich modulation available for every parameter, including two LFOs, two envelopes, and more. A global Performance page shows a simplified interface that allows you to manipulate every drum channel simultaneously. Want to hear your drum beat tuned down an octave with a single knob? Done. Need a global boost to distortion or a dramatic filter gesture? Easy. Each drum channel contains two sequencers. The first sequencer is a manual step sequencer with ratcheting, probability, velocity, pitch, micro-timing, and more... per-step! Each parameter lane can run at a different speed and length, making generative, evolving patterns a breeze. The second sequencer combines Euclidean patterns with an Unfiltered-designed permutation engine. Both sequencers run in parallel and receive further shaping via an array of Sequence Modifiers. Want one drum sequence to speed up while another slows down? The SHAPE parameter is here for you. Need that hi-hat to be a bit lazy? SHIFT will nudge it to rush or drag. And if you think drum machines have no soul, wait until you combine per-channel SWING with global HUMANIZE. All of this advanced sound design is glued together with a flexible mixer and Unfiltered Audio's evocative effects. Battalion contains two new Unfiltered Audio effects: Shatter Delay and Headspace Reverb. Shatter Delay combines granular stretching, dynamic ducking, sample crushing, and feedback spectrum sculpting into a melange of echo bliss. Dubby, dark, dotted echoes? Chaotic glitch storms? It's all here. Headspace Reverb evolves Silo's ten classic reverb algorithms with additional filtering options. You will always find the perfect reverb for your drum mix. Battalion includes over 150 presets to get you started. These cover a wide variety of genres and tempos, from glitch and IDM by esteemed sound designer DataBroth, to futuristic hip-hop from Willie Green (head of our favorite Backwoodz Studioz). From smoky and loose to shiny and mechanical, Battalion is ready to be your go-to solution for every rhythmic task. ## Key features - 20+ synthesis algorithms - 5 sampler algorithms - 8 drum channels with simultaneous sample/synth - 11 filter and 11 distortion modes - Per-step modulation and generative sequencers - Euclidean and permutation pattern engine - Global performance controls - Built-in Shatter Delay and Headspace Reverb ## Recent user reviews (10 of 24) All indexed reviews: https://appshunter.io/ios/app/battalion-drum-machine/id6743767101/reviews.md ### 4/5 — Great but… *2026-05-24* It would be nice to have a least two normal sounding drum kits…I mean I get that its groundbreaking as far as sound designing and synthetic drums….but a few basic bread and butter patches would be helpful…… And there should be a way to make other alternative variation sequences NOT just one sequence that shifts and changes randomly ………also they put the randomize dice button way too close to the browse buttons ### 4/5 — Absolutely Astounding! Please fix the UI ratio for iPhone. *2026-05-14* The sounds this thing can make are unlike any other drum synth! Worth every penny! Please make a physical unit one day! It’d be the physical drum machine from my dreams! I’d buy it in a heartbeat. Please please change the UI scale on iPhone Pro max and make use of the large screen. When it’s in a smaller window ratio, it’s harder than it needs to be to tweak parameters. ### 4/5 — Great but…Sounds are too crazy *2026-04-02, version 1.2.0* It would be nice to have a least two normal drum kits…I mean I get that its groundbreaking as far as sound designing but a few basic bread and butter patches would be helpful…… And there should be a way to make other alternative variation sequences NOT just one sequence that shifts and changes randomly ………also they put the randomize dice button way too close to the browse buttons ### 5/5 — Never heard something like this app *2026-02-18* I am a hardware modular junkie! Today i bought this app cuz i heard a friend paying life with it couple of days ago. This the best sounding drum device i've ever heard. Absolutely mind blowing. Shout out to the developer/s! ### 4/5 — Lots of potential. *2025-11-27* Lots of potential. ### 2/5 — near sounds, incomplete UI for the port *2025-11-23* i really love the sound design but the UI isn’t optimized for touch and is missing critical controls needed from the lack of keyboard shortcuts and right click mouse. ### 5/5 — Great! *2025-10-21* One of the best drum machine on iPad, if not THE best. I love the swing/shuffle per track, the possibility to have negative swing/shuffle (it's so rare to find this feature), and also the possibility to micro shift an instrument track back or ahead in time. Which makes it better than Drum Computer. Battalion sounds super analog. I'm in love with it. ### 5/5 — Endless Fun *2025-10-14* An amazing drum synth and sampler with a great sequencer. The deep modulation controls and the perform page make Battalion super fun to just play around with, and you can go really deep into sound design. It comes stocked with lots of presets and samples and it’s easy to create your own as well… plus the randomization is top notch. ### 5/5 — Best software drum machine on any system *2025-09-19* The apps UA releases are all top notch and this one is no exception. It’s a stunning drum machine, allowing you to combine a drum synth engine with a sample for each of the 8 channels. It’s got a sequencer, pattern creator, FX per layer and global LFOs, randomization options, EQs, filters. Everything in a MIDI mappable , easy to use UI. Worth it even if it’s not on sale. ### 5/5 — Perfect Idm tool *2025-08-31* Allows for randomising a timbre of the drum sounds leading to producing inspiring drum patterns (reminds me of autechre). An idea for future updates: enable folders for user samples , otherwise I have just endless list of those. ## Frequently asked questions about Battalion ### What is Battalion? Battalion is a powerful drum machine app for iOS that combines synthesis, sampling, and advanced sequencing. It offers deep sound design capabilities with numerous algorithms and effects, allowing users to create complex and evolving rhythmic patterns. ### What devices does Battalion support? Battalion is supported on iPhone, iPad, and iPod. It is designed to leverage the capabilities of these Apple mobile devices for music creation. ### How much does Battalion cost? Battalion is a paid application priced at $29.99. This one-time purchase provides access to all of its advanced features and capabilities. ### What is the age rating for Battalion? Battalion has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions. ### How often is Battalion updated? Battalion was last updated on March 17, 2026, with version 1.2.0. This suggests a commitment to ongoing development and feature enhancements. ### What kind of sounds can I create with Battalion? Battalion allows for a vast range of sounds, from deep and dark to shiny and mechanical. With over 20 synthesis algorithms, 5 sampler algorithms, and extensive modulation options, you can craft unique drum sounds and intricate rhythmic textures. ### Does Battalion offer presets? Yes, Battalion includes over 150 presets to help users get started. These presets cover a wide variety of genres and tempos, created by esteemed sound designers. ### Can Battalion be used offline? As a music production tool, Battalion is designed for creative work and typically does not require an internet connection to function. Users can create and save their projects locally on their devices. ## Version history (last 3 releases) ### 1.2.0 — 2026-03-17 1.2.0 (02/24/2026) - Re-introduced iPhone version! This version is primarily intended for opening presets and projects on the go. - The "Garbage-Fi" sample engine released on iOS was incorrectly an alpha slicing engine. This release fixes that engine (now called Phase Slice). This engine *mostly* works the same, but we fixed the slice start/end behavior with the intended design. If you had existing presets, turn the new WINDOW parameter the whole way down to match the sound. If you had non-default start/end points, the preset sound may have changed. We apologize for the oversight on this one. - Added Phase Stretch sample engine. - Added the real Garbage-Fi sample engine. - Drum triggers from MIDI Inputs now use sequencer step values. - Add global option for mute behavior: Audio Mute (previous behavior: instantly mute/unmute track) or Trigger Mute (let drum finish ringing, prevent new triggers from triggering the drum). - Add global option to reset sequencer lanes in TRIG or RETRIG mode when playback restarts or before renders. - Add "Load Random Sample From Same Folder" to sample menu. - Add "Clear All Sequencers" to the preset menu. - Fix clicks/pops when opening the interface. - Fix for crash on iOS when using MIDI notes to change presets. - Fix for Probability parameter results getting stuck in loops. - Fix for a rare sample rate issue that could make samples playback at fast rates in saved projects. ### 1.1.3 — 2025-07-01 Thank you for using Battalion! It has been a fun launch so far. We have a much-requested workflow improvement along with some bug fixes. - Double-clicking (or tapping) a sequencer parameter step will reset the value to a default (i.e. pitch, velocity, ratchet). - Fixed a crash when dragging a drum track onto the Voice/Performance button at the top of the channel selector. - Fixed a graphical bug where the Voice/Performance button would light up when dragging a track over it, suggesting a potential drop. - Fix for Clap engine not choking properly. ### 1.1.2 — 2025-06-17 No release notes. ## More apps by Unfiltered Audio - [Bass Mint](https://appshunter.io/ios/app/bass-mint/id1638381373) - [lo-fi-af](https://appshunter.io/ios/app/lo-fi-af/id6444068732) - [Needlepoint - Vinyl Simulator](https://appshunter.io/ios/app/needlepoint-vinyl-simulator/id6444132258) - [Tails - Dual Reverb](https://appshunter.io/ios/app/tails-dual-reverb/id6444164617) - [Silo - Granulator and Reverb](https://appshunter.io/ios/app/silo-granulator-and-reverb/id6444164740) All apps by Unfiltered Audio: https://appshunter.io/developer/1638381375 ## Related topics [Battalion](https://appshunter.io/ios/topics/battalion) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*