OODA vs BounceBud Physics Based MIDI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OODA
This app offers a unique approach to MIDI sequencing with interactive and semi-generative features. Connect steps with conditional 'wormholes' for structured variation and create melodic variations in real-time without disrupting the groove. Its flexible grid supports various musical applications, from simple melodies to complex generative patterns.
- Record sequences up to 64 steps
- Interactive step sequencing with wormholes
- Four independent voices with customizable settings
- Real-time melodic variation control
- Flexible grid configuration
- Standalone and AUv3 host compatibility
- MIDI clock sync and output
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OODA is a fresh take on the classic MIDI step sequencer with interactive and semi-generative enhancements. What makes OODA unique is that you can connect arbitrary steps together using conditional “wormholes” to add structured (or random) variation to your sequences. Another unique feature is that OODA’s underlying model is decoupled from its voices. This allows you to interact with your sequences and create melodic variations in real time without affecting your groove. OODA’s open-ended sequence grid can be easily configured for almost any use case. Anything from simple melodies and bass parts to semi-generative chords and arpeggios, OODA can do it all with a little creativity! Features: - Record sequences up to 64 steps with the in-app keyboard or an external MIDI device - Interact with your sequence on the fly using four “action” buttons - Link together steps using conditional wormholes to create structure and variation - Create complex patterns of melody and rhythm using four independent voices - Change voice speed independent of sequencer speed - Comes with ten factory presets to give you an idea of what OODA is capable of - Explore a deep, yet focused set of parameters - Sequencer Settings - Grid size (4x4 or 8x8) - Sync voices to sequencer rate - Sequencer rate - Sequencer direction - Shift amount (semitones) - Live toggle rests and skips - Wormhole Patcher - Conditionally “reroute” your sequence by connecting arbitrary steps - Per-step wormholes - Destination and normal steps per wormhole - Trig conditions and probability for moving through each wormhole (see below for list) - Voice Settings - Four voices with independent settings - Enable/disable - Rate of play (in beat time from 16 bars to 32nd T) - Includes unique note values based on the Golden Ratio for maximum generative fun! - Length of note (10% to 100%) - Variety of rules for selecting notes from active step (see below for list) - Pitch offset - Unique pattern control for creating rhythms and polymeters, now with step options - Easily add holds, ties, accents (positive and negative), ratchets, and trig conditions - MIDI velocity and channel - Flexible Connectivity - Use in a compatible audio unit host like AUM, or in standalone mode - Control multiple instruments at once with five MIDI outputs - One for all voices together, and one for each voice by itself - Sync to the tempo of other devices using Ableton Link or MIDI clock (standalone) - Send MIDI clock to external synths (standalone, experimental feature) - Connect to Bluetooth MIDI devices - Modulate OODA’s parameters in a compatible AUv3 host (audio unit) - Eight unique MIDI CC outputs derived from OODA’s sequencer model - Sequencer X, Sequencer Y, Sequence Phase, Action OR, and per-voice random - Includes macOS app! IMPORTANT: OODA can be used as a standalone app or as an AUv3 plugin. There are some important differences between the two. The standalone app features a simple, toggleable "Sidekick Synth" so you can quickly experiment with OODA. Of course, you can also send MIDI from the standalone app. Meanwhile, the OODA AUv3 plugin does NOT generate sound. Instead, you use it to send MIDI (note messages) to other apps, plugins, or hardware instruments that do the actual sound generation. AUv3 plugins must be used inside a compatible host. Available Wormhole Rules - Always, 1x through 7x, 2:2 through 8:8, 10%, 25%, 33%, 50%, 67%, 75%, 90%, Last, Not Last Available Voice Rules - Nth, Lowest, Highest, Random, Up, Down, UpDown, DownUp, UpDown+, DownUp+, Rise, Fall View manual: https://www.audiosymmetric.com/manuals.html View tutorials: https://www.youtube.com/channel/UC9Uka-nFom-pgTB-DftgDvA
BounceBud Physics Based MIDI
This app generates MIDI notes through a unique physics-based system. Balls collide with customizable keyboards, triggering MIDI events. It offers extensive control over note scales, velocity, and MIDI channels for diverse musical creations.
- Physics-based generative MIDI sequencing
- Customizable keyboards with MIDI note triggers
- Adjustable ball count, speed, and size
- Configurable key/scale, velocity, and octave ranges
- Individual MIDI output per keyboard
- MIDI input for 'shoot walls' interaction
- Toggleable ball collision behavior
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BounceBud is a physics based, generative MIDI sequncer. Each side of the app has a customizable keyboard that send a MIDI note when a ball collide with its key. You can specify the ball count, speed and size on the main screen with the knob controls. In the settings menu, you can set the key/scale, velocity range, octave. range and MIDI channel settings of the keyboards. You can also specify the notes individually per keyboard. All keyboards share the same key/scale that could also be changed with BrainBud. Each keyboard has its own MIDI output, so you can play different audio apps with BounceBud at once. Or you can disable the keyboard sides you don't want to use. With a MIDI input (from a MIDI keyboard or a MIDI sequencer app) you can 'shoot walls' from the keyboards. Balls can interact with the walls and it introduce more randomness to your generative sequence. You can control each keyboard by assigning them different MIDI input channels in the settings menu. You can also toggle the ball collision behavior in the settings menu. Whether balls can collide with each other or not, it creates different, interesting sequences every time. The size variety and ball variety can be change in the ball settings section in the settings menu. It adds randomisation to the size and speed values. You can change the ball color theme in the settings menu as well! BounceBud is a MIDI app and it does not produce any sound on its own. You need to route BounceBud's MIDI outs to your audio app's MIDI input. The AUv3 plugin app needs and AUv3 host app such as AUM, Loopy Pro, Logic Pro, Cubasis, Nanostudio, apeMatrix etc.
Screenshots
Verdict
The clearest difference is update cadence: BounceBud Physics Based MIDI at every 3 weeks against OODA's every 4 months. BounceBud Physics Based MIDI also leads on price ($5.99 vs $8.99) and review sentiment (100% vs 91%). OODA's advantage is ratings volume (38 vs 11). On rating, ads, in-app purchases and monetization model 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
OODA costs $8.99 and BounceBud Physics Based MIDI $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BounceBud Physics Based MIDI holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 38 and 11 respectively. Written reviews point the same way: 91% of OODA's written reviews are positive against 100% of BounceBud Physics Based MIDI's.
OODA ships an update every 4 months, BounceBud Physics Based MIDI every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | OODA | BounceBud Physics Based MIDI |
|---|---|---|
| Price | $8.99 | $5.99 — better |
| Rating | 4.8 (38 ratings) | 5.0 (11 ratings) — better |
| Positive reviews | 91.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 38 — better | 11 |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Robinson | Cem Olcay |
Customer experience
OODA
BounceBud Physics Based MIDI
In-app purchases
OODA
No in-app purchases
BounceBud Physics Based MIDI
No in-app purchases








