Comparison

Digitron Synthesizer vs ChordBloom

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

Head to head
About

Digitron Synthesizer

Create complex soundscapes and multi-track sequences with this virtual analog synthesizer. Experiment with hands-on controls, track effects, and waveform visualization. Ideal for quick sound design and modular-style workflows.

Highlights
  • Pocket Operator synchronization
  • MIDI keyboard and CC controller support
  • Audio Unit v3 (AUv3) compatibility
  • Track and master effects
  • Built-in audio recorder and editor
  • Oscilloscope waveform visualization
  • Haptic feedback on controls
Features
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• Pocket Operator synchronization • MIDI keyboard support • MIDI CC controller support • Audio Unit v3 (AUv3) support • Track and master effects • XY controls • Mixer with individual track levels and panning • Built-in audio recorder and editor • Oscilloscope for waveform visualization • Haptic feedback on potentiometer controls • Interface adapted for iPhone and iPad Digitron is designed for quick experimentation, from simple synth patches to multi-track sequences and modular-style sound design. Its hands-on approach to synthesis takes inspiration from compact analog instruments and modular synth workflows such as the Korg Monotron, Moog Mavis and Pocket Operator ecosystem. If you have feedback or ideas for future features, feel free to get in touch. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ChordBloom

Features
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ChordBloom turns music theory into a garden. Chords bloom as petals around the key you're in — tap to hear them, wander to neighboring keys, and watch harmony make sense visually. EXPLORE HARMONY BY TOUCH Diatonic chords, the circle of fifths, relative and parallel keys, tritone substitutions, modal interchange — each view lays the theory out as petals you can play. Long-press to cycle extensions (7ths, 9ths, 13ths), choose close, open, or spread voicings, and phrase chords as blocks, strums, or arpeggios. REAL SYNTHESIS, ON DEVICE A full SuperCollider synth engine runs right on your phone alongside classic synth voices — warm pads, plucks, bells, keys, and ambient textures. Every note is synthesized live, and it all works completely offline. AI IMPROVISATION Let the built-in improviser play melodies over your chord changes while you drive the harmony. SAVE YOUR PROGRESSIONS Collect chords into palettes and build progressions you can come back to. MIDI OUTPUT — OPTIONAL UNLOCK Turn ChordBloom into a chord controller for your whole studio: a one-time in-app purchase unlocks BLE MIDI to hardware synths and CoreMIDI to DAWs and other iOS music apps. No account. No ads. No data collected.

Screenshots

Digitron Synthesizer4 screens
ChordBloom3 screens

Verdict

The call

Digitron Synthesizer and ChordBloom are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Digitron Synthesizer sells 3 in-app purchases, starting at $0.99 per month and ChordBloom sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Digitron Synthesizer versus ChordBloom: the parameters behind the verdict, then further details
ParameterDigitron SynthesizerChordBloom
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 daysEvery 4 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size119 MB4 MB
Age rating4+4+
DeveloperEvgenii PetrovJames Hurlbut

In-app purchases

3 purchases

Digitron Synthesizer

Subscriptions2
  • Pro Subscription Month$0.991 Month
  • Pro Subscription Year$7.991 Year
One-time1
  • Pro Unlock$9.99
1 purchases

ChordBloom

One-time1
  • MIDI Output$4.99

Questions

Is Digitron Synthesizer free?
Digitron Synthesizer is free to download, with in-app purchases available.
Is ChordBloom free?
ChordBloom is free to download, with in-app purchases available.
Do Digitron Synthesizer or ChordBloom have ads?
Neither Digitron Synthesizer nor ChordBloom shows ads.
Which is updated more often, Digitron Synthesizer or ChordBloom?
Digitron Synthesizer ships an update every 4 days, and ChordBloom every 4 days. Most recently, Digitron Synthesizer was updated on October 24, 2026 and ChordBloom on October 28, 2026.

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