Midiflow Randomizer (Audiobus) vs mididelay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Midiflow Randomizer (Audiobus)
This MIDI effect app generates random variations in notes, velocities, and timing for musical sequences. It allows users to specify the range of randomization and can be used with other MIDI tools for harmonious results. Requires Audiobus 3.
- Randomize notes
- Randomize note velocities
- Randomize timing
- Specify variation range
- Use multiple instances
- Requires Audiobus 3
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Whether you want to add a human touch to note sequences or seek inspiration, this MIDI effect app for Audiobus 3 is a simple but effective tool for you. Randomize notes, note velocities, and timing just by specifying a desired range of variations. With the help of Midiflow Scales, you can keep your randomized notes in harmony. + Randomize notes + Randomize note velocities + Randomize timing + Specify an amount of variation for each type + Use multiple instances of this effect in Audiobus NOTE: This app requires Audiobus 3. Insert it into one or more MIDI effect ports to affect the data going through the respective pipelines.
mididelay
This app applies traditional delay effects to MIDI data, allowing for complex sound manipulation. It offers multiple independent delay lines, various MIDI message processing, and customizable feedback chains with built-in effects. Organize lines sequentially or in parallel for unique sonic textures.
- 8 independent delay lines with feedback
- Processes MIDI notes, CC, aftertouch, pressure, pitch bend
- Customizable feedback modes (average, min, max)
- Sequential and parallel delay line algorithms
- Scale quantize, pitch, and velocity randomization
- 3 independent scenes with cross-fading
- Standalone and AUv3 support
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mididelay is an implementation of traditional delay effect adapted for the MIDI data. It features: • 8 independent delay lines with feedback • Each delay line can process MIDI notes, control change, aftertouch, polyphonic key pressure and pitch bend messages. • For the feedback, the “feedback level” is applied to the messages; note messages change velocity and all other messages can be mixed with previous values using one of three modes (average, minimum and maximum value) • It’s possible to organise delay lines in different possible ‘algorithms’, sequentially and/or in parallel • There are three effects available inside delay’s feedback chain: scale quantise, pitch and velocity value operations randomisation • Each ‘preset’ contains 3 independent scenes marked “A”,”B” and “C”, it’s possible to cross- fade between them and adjust overall amount of the effect with 2D pad. • Simple mode : only one delay with scenes morphing. Standalone and AUv3
Screenshots
Verdict
The clearest difference is review sentiment: mididelay at 100% against Midiflow Randomizer (Audiobus)'s 50%. mididelay also leads on rating (5.0 vs 3.0). Midiflow Randomizer (Audiobus)'s advantage is price ($1.99 vs $4.99) and iOS requirement (10.2 vs 15.6). On ratings volume, update cadence, ads and in-app purchases 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
Midiflow Randomizer (Audiobus) costs $1.99 and mididelay $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
mididelay holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 50% of Midiflow Randomizer (Audiobus)'s written reviews are positive against 100% of mididelay's.
Midiflow Randomizer (Audiobus) ships an update every 11 months, mididelay every 10 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.
| Parameter | Midiflow Randomizer (Audiobus) | mididelay |
|---|---|---|
| Price | $1.99 — better | $4.99 |
| Rating | 3.0 (4 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 3 |
| Update frequency | Every 11 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Johannes Doerr | Alexey Nadzharov |
Customer experience
Midiflow Randomizer (Audiobus)
mididelay
In-app purchases
Midiflow Randomizer (Audiobus)
No in-app purchases
mididelay
No in-app purchases
Questions
Is Midiflow Randomizer (Audiobus) free?
Is mididelay free?
Which has better reviews, Midiflow Randomizer (Audiobus) or mididelay?
Do Midiflow Randomizer (Audiobus) or mididelay have ads?
Which is updated more often, Midiflow Randomizer (Audiobus) or mididelay?
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