Comparison

ChordUp vs Drambo

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

Head to head
About

ChordUp

This app is a musical instrument and MIDI controller that lets you play common chords instantly with a single touch. It offers multiple playing surfaces for chords, single notes, or strumming, and can control other music apps on the same or different devices.

Highlights
  • Instant chord selection with single touch
  • Play full chords, single notes, or strum
  • Control other music apps via MIDI
  • 108 available chords
  • 10 embedded instruments
  • Smart sustain and chord locking
Read full description

ChordUp is a musical instrument and MIDI controller that allows you to play almost any common chord instantly. No need to configure presets for each song. Just grab ChordUp and start playing. SELECT CHORDS WITH A SINGLE TOUCH Unique chord selector allows you to play any available chord instantly. You don't need to make any pre-configurations or presets. Just tap on the key button and slide your finger to the required chord type. With a little practice you will be able to select any chord in a fraction of a second. PLAY FULL CHORDS, SINGLE NOTES OR STRUM Three playing surfaces allows you to easily play any rhythm pattern: full chords, bass and chord, strumming or arpeggios. CONTROL OTHER APPS ON THE SAME DEVICE You can use ChordUp to control your favourite soft or hard synthesizer through Core MIDI connection or though Audiobus 3 MIDI ports. CONTROL APPS ON ANOTHER IOS DEVICE OR YOUR MAC ChordUp can send MIDI notes to another iOS device through a Bluetooth MIDI connection. If you want to control an App running on your Mac you can connect through Bluetooth, Wi-Fi or USB. FEATURES • 108 available chords (9 chord types for each of the 12 notes). • 10 embedded instruments: Acoustic Piano, Electric Piano, Guitar, Organ, Accordion, Vibraphone, Strings, 3 synth sounds. • 12 pads surface (for piano like parts) • 6 strings surface (for guitar strumming, power chords and arpeggios) • Expression pad surface (allows to play full chords and control an expression parameter at the same time) • Smart sustain. With the sustain enabled, when you switch chords, only the notes of the current chord that don't belong to the next chord are muted. • Octave transposition. • Chord locking. You can lock one chord type for a chord button. • Buttons size adjustment on iPad. • CoreMIDI support. • Audiobus support (Audio sender port, MIDI sender port)

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

ChordUp4 screens
Drambo4 screens

Verdict

The call

The clearest difference is price: ChordUp at $5.99 against Drambo's $24.99. ChordUp also leads on in-app purchases (none vs 5). Drambo's advantage is rating (4.8 vs 4.4) and ratings volume (325 vs 41). On review sentiment, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

ChordUp costs $5.99 and Drambo $24.99 up front. Drambo sells 5 one-off in-app purchases. ChordUp asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Drambo holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Drambo has 325 ratings behind it against 41, so its average is the more settled of the two. Written reviews complicate that: 94% of ChordUp's written reviews are positive against 87% of Drambo's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ChordUp ships an update every 3 weeks, Drambo monthly. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
ChordUp versus Drambo: the parameters behind the verdict, then further details
ParameterChordUpDrambo
Price$5.99 — better$24.99
Rating4.4 (41 ratings)4.8 (325 ratings) — better
Positive reviews94.3% of reviews — better86.7% of reviews
Number of ratings41325 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size30 MB144 MB
Age rating4+4+
DeveloperDmitrii KlochkovBeepStreet

Customer experience

ChordUp

All ratings41 ratings
Positive82.9%
Neutral4.9%
Negative12.2%
Written reviews35 reviews
Positive94.3%
Neutral2.9%
Negative2.9%

Drambo

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

Bugs and requests

ChordUp

Not enough reviews yet to summarise bugs or requests.

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

None

ChordUp

No in-app purchases

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 ChordUp free?
ChordUp costs $5.99, with no in-app purchases.
Is Drambo free?
Drambo costs $24.99, and also offers in-app purchases.
Which has better reviews, ChordUp or Drambo?
Drambo is rated higher. ChordUp averages 4.4 out of 5 from 41 ratings, while Drambo averages 4.8 from 325 ratings.
Do ChordUp or Drambo have ads?
Neither ChordUp nor Drambo shows ads.
Which is updated more often, ChordUp or Drambo?
ChordUp ships an update every 3 weeks, and Drambo monthly. Most recently, ChordUp was updated on September 21, 2026 and Drambo on September 24, 2026.

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