Comparison

AUM vs Drambo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AUM

This app is a versatile audio mixer, recorder, and connection hub for mobile devices. It allows users to connect various audio sources, route signals, apply effects, and record mixes with high fidelity. It supports advanced features like MIDI control, synchronization, and integration with other audio apps and hardware.

Highlights
  • Connect hardware inputs/outputs
  • Route audio and MIDI
  • Host Audio Unit extensions
  • Record mixes and individual tracks
  • Synchronize with Ableton Link
  • Built-in processing nodes
  • MIDI control and routing
Features
Currently charting
Read full description

AUM is the flexible audio mixer, recorder, and connection hub for your iPad, iPhone and iPod touch. Connect hardware inputs and outputs, Audio Unit extensions, Inter-App Audio apps, Audiobus, soundfile players, built-in signal processing and filters, in any configuration you want. Route anything to anywhere with mix-busses, effect sends, audiobus ports, and external multi-channel audio interfaces. Play hosted synths and instruments using the built-in keyboard or external MIDI controllers, or sequence them with AU MIDI plugins or from other apps using Virtual MIDI. Record mixes, individual tracks, or both, straight into the storage space of AudioShare (no copying of files needed), with synchronized start and end for perfect loops. Play back recordings, soundfiles and loops as channel sources in the mixer for backing tracks, further processing or mixing. Soundfiles can be opened from anywhere, including USB drives on iOS 13 and later. Route and filter MIDI in any way you like using the MIDI matrix. Combine and filter MIDI endpoints using MIDI buses. Synchronize everything with the transport clock and play in time with other apps or devices using Ableton Link. Connect external music machines and synchronize them with MIDI Clock. Includes built-in processing nodes for various stereo processing, Mid/Side balance and conversion, EQs and filters, limiting, clipping and saturation. Or use any 3rd party Audio Unit extension or Inter-App Audio effect. All controls in the mixer can be controlled via MIDI, including parameters of hosted and built-in plugins. "A brilliant idea that has been brilliantly executed. Top-notch technical stuff and highly recommended" - MusicAppBlog "Feature rich, powerful, intuitive, and simple to use" - DubSpot "Executes live mixing with surprising ease, with a load of extensive features under the hood, quick snappy response on the screen and audio" - AudioNewsRoom FEATURES • High quality audio up to 32-bit 192kHz • Clean and intuitive user interface with crisp vector graphics • Unlimited number of channels • Unlimited number of effect slots • Inserts and sends are configurable pre/post-fader • Internal busses for mixing, effect sends, signal splitting • Supports multi-channel audio interfaces for both inputs and outputs • Supports built-in speaker and mic, including stereo mic on devices that has it. • Supports Audio Unit extensions, Inter-App Audio and Audiobus • Route MIDI output from Audio Unit extensions • Supports Audio Unit multiple output and input busses (for side-chaining etc) • Highly accurate transport clock • Metronome with selectable output and optional pre-roll • Sends host sync to Audio Unit plugins and IAA apps • Play in time with Ableton Link, with Start/Stop support • Slave external hardware via MIDI Clock • FilePlayer with sync and looping with access to all your soundfiles • Records straight into AudioShare storage space • Record synchronized beat-perfect loops • Built-in nodes for stereo processing, filtering and dynamics • Latency compensation makes everything align at the outputs • Optional manual compensation using TimeOffset • Multiple Inter-App Audio / Audiobus output ports • Audiobus state saving • Built-in MIDI keyboard • Fully MIDI controllable • MIDI Matrix for routing MIDI anywhere • MIDI filtering for any MIDI destination • Combine MIDI sources or destinations using MIDI buses BUILT-IN SIGNAL PROCESSING • Stereo balance • Stereo to mono • Stereo panning • Mid/Side balance • Mid/Side - Stereo convert • Invert Phase • Parametric EQ • Low-shelf filter • High-shelf filter • Low-pass resonant filter • High-pass resonant filter • LP/HP combo filter • First order All-pass filter • Second order All-pass filter • Gain • Hard clip • Saturation • Lookahead peak limiter • System-provided Apple Audio Units

About

Drambo

This app offers a flexible sound design experience, allowing users to build beats, create synthesizers, and process audio with effects. Its innovative modular system simplifies connections and organization, making it suitable for both beginners and experienced musicians. It functions as a standalone application or a plugin within a DAW.

Highlights
  • Modular sound design
  • Intuitive cable-less connections
  • Advanced sequencer
  • Standalone and AUv3 plugin
  • Over 140 modules
  • Polyphonic stereo processing
Features
Read full description

"Drambo changes the face of iOS music apps." Cult of Mac Drambo is your all-in-one sound laboratory that adapts to your workflow: build beats as a groovebox, design synths, or transform audio with effects, standalone or inside your favorite DAW. At the core of Drambo is a fresh approach to modular design that makes creating with modules easy, fun, and accessible. Connections happen automatically as you add or move modules, so there are no messy cables to slow you down. The interface adapts to your workflow, generating modulation controls when you need them, and even lets modules contain other modules for perfect organization. You’re always free to override the automatic connections, but most of the time, you can just dive in, experiment, and shape sounds without getting tangled in wires. Use a deep and innovative sequencer to compose patterns and whole tracks, for production or live performance. Go beyond simple looping sequences with parameter locking, conditional step components, parameters automation and powerful scene morphing. Drambo works equally well as a self-contained standalone app or audio unit plugin with audio and MIDI connectivity as an AUV3 instrument, audio effect and MIDI effect. You can use Drambo as • A Complete Studio: Produce entire tracks and perform live in a self-contained, multitrack environment. • An Endless modular playground, that allows you to build, modify and store custom instruments and effects. For instance: build a custom synth, sample and resample, build a Theremin using a gyroscope module, or turn your table into a playable surface, by processing microphone input with physical modelling modules. • An Advanced MIDI Sequencer: Control hardware or AUv3 instruments. Generate custom MIDI CC messages or send modulation signals to physical modular synths via DC-coupled interfaces. • The Ultimate AUv3 Plugin: Load Drambo inside other DAWs as an instrument, audio effect, or MIDI processor. Replace dozens of standard plugins by building your own complex modular delays, reverbs, decimators, or modulators in seconds. • A Unified Audio-Visual Studio (Drambo Visual IAP): Arts united. Step into another realm of modular visual synthesis to build complex generative video art, or seamlessly patch your audio and visual engines together for deeply integrated performances. Features: • Polyphonic, stereo processing and audio-rate modulation. All signals are equal. Up to 16 voices per modular instrument rack. • Unique modular concept: cable-less, drag'n'drop, color coding dynamic interface, automatic connections, and customizable compact, rack views. • Directional flow makes Drambo routing and patching straightforward. Signal flows only left to right, so there are no instant feedback routings in Drambo. Delayed feedback is possible using certain modules. • Simple and clean interface, that scales to every size and device orientation • Over 140 modules available, such as: oscillators, samplers, physical modelling modules, LFOs, envelope generators, filters, audio effects, mixers, MIDI processors, sequencers and math functions. (Includes a macro oscillator based on the famous Eurorack Plaits module, with 24 synth engines) • Custom modular racks that can be nested, with presets at the track, rack, and module level. • Clip launcher / song arrager. • 16-tracks, polyphonic sequencer with parameter locks, automation and step components. 8 dedicated step sequence editor types, piano-roll, powerful automation designer with drawing modes and cubic Bezier curves. • Audio Units hosting ( standalone app only ) • Morph groups: you can morph many parameters using a single slider. • Available as a standalone app, AUv3 instrument, effect and MIDI effect. • MIDI and Ableton Link support Drambo is all about control. Control things that other apps don’t even give you access to. Visit the BeepStreet page for help and tutorials, and Patchstorage for community content.

Screenshots

AUM4 screens
Drambo4 screens

Verdict

The call

The clearest difference is update cadence: Drambo at monthly against AUM's every 3 months. AUM's advantage is chart position (#128 vs unranked) and iOS requirement (12.0 vs 15.6). On price, rating, review sentiment and ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

AUM costs $24.99 and Drambo $24.99 up front. AUM sells 4 one-off in-app purchases and Drambo sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for AUM against 4.8 for Drambo. Both are backed by a comparable volume of ratings — 524 and 325 respectively. Written reviews are what separate them: 82% of AUM's written reviews are positive against 87% of Drambo's.

UpkeepUpdate frequency

AUM ships an update every 3 months, Drambo monthly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 8 level
AUM versus Drambo: the parameters behind the verdict, then further details
ParameterAUMDrambo
Price$24.99$24.99
Rating4.7 (524 ratings)4.8 (325 ratings) — better
Positive reviews82.1% of reviews86.7% of reviews — better
Number of ratings524 — better325
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#128 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size13 MB144 MB
Age rating4+4+
DeveloperKymatica ABBeepStreet

Customer experience

AUM

All ratings524 ratings
Positive93.3%
Neutral1.5%
Negative5.2%
Written reviews313 reviews
Positive82.1%
Neutral5.4%
Negative12.5%

Drambo

All ratings325 ratings
Positive94.8%
Neutral2.2%
Negative3.1%
Written reviews225 reviews
Positive86.7%
Neutral3.1%
Negative10.2%

User reviews

AUM

From 524 App Store ratings

What we love

  • 👍 Excellent audio routing and mixing capabilities
  • 🚀 Powerful and flexible workflow
  • 💡 Seamless integration with AUv3 and IAA apps
  • 👍 Intuitive and clean user interface
  • 👍 Reliable and stable performance

Room to improve

  • 🐛 Occasional crashes or stability issues
  • 💡 Lack of MIDI clock sync receive functionality
  • 💡 Limited visual customization options (e.g. channel sizes)
  • 🐛 Compatibility issues with some hardware interfaces

Drambo

From 325 App Store ratings

What we love

  • 🚀 Incredibly powerful and flexible
  • 🎨 Endless creative possibilities
  • 👍 Intuitive and well-designed interface
  • 🔧 Modular synth capabilities
  • 🎛️ Excellent sequencing and groove box features

Room to improve

  • 🐛 Occasional crashes and stability issues
  • 🔒 Limited undo/redo functionality
  • 🔊 Audio export issues (pitch/tempo problems)
  • 🔀 Lack of dedicated audio track support

Bugs and requests

AUM

Reported bugs

3 issues
  • Crashes or freezes when using certain plugin combinations
  • Compatibility issues with iOS 15 and newer
  • Inconsistent MIDI transport controls

Requested features

4 requests
  • Add MIDI clock sync receive capability
  • Implement a timeline/sequencer view
  • Provide more visual customization options
  • Improve support for external hardware integration

Drambo

Reported bugs

3 issues
  • Audio cutting out after 5 minutes of use
  • Presets and patches not loading properly
  • Incompatibility with certain iOS devices

Requested features

5 requests
  • Stem/track export functionality
  • MIDI CC learn and external control
  • Ableton Link support
  • More parameter control and modulation options
  • Improved piano roll and sequencing tools

In-app purchases

4 purchases

AUM

One-time4
  • Small Tip$0.99
  • Medium Tip$1.99
  • Large Tip$4.99
Show 1 more
  • Huge Tip$9.99
5 purchases

Drambo

One-time5
  • Granular extension$4.99
  • Waves extension$4.99
  • Formants extension$4.99
Show 2 more
  • DSP extensions 1$4.99
  • Visual extension$14.99

Questions

Is AUM free?
AUM costs $24.99, and also offers in-app purchases.
Is Drambo free?
Drambo costs $24.99, and also offers in-app purchases.
Which has better reviews, AUM or Drambo?
Drambo is rated higher. AUM averages 4.7 out of 5 from 524 ratings, while Drambo averages 4.8 from 325 ratings.
Do AUM or Drambo have ads?
Neither AUM nor Drambo shows ads.
Which is updated more often, AUM or Drambo?
AUM ships an update every 3 months, and Drambo monthly. Most recently, AUM was updated on September 22, 2026 and Drambo on September 24, 2026.

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