"Otoo is a brilliant little 'groove box for beginners' by BeepStreet."
Otoo is a fun, one-screen music maker designed to get you creating right away. Sketch melodies freely on the grid (no more rigid rows) and remix your beats live with hands-on Performance Mode effects. It’s intuitive enough to play without a manual, but deep enough to keep you growing.
Beautifully simple workflow
• Free-form step sequencer with instruments not tied to fixed rows • Single-screen workflow with sequence, song structure, and mixer always visible • Tap or drag notes onto the grid to build beats and melodies • Stack notes to create chords • Per-step control of length, subdivision, and velocity • 4 rows on iPhone and 5 on iPad, with multiple instruments available in each row at different steps • 2-octave keyboard for playing and learning real notes • Multi-gesture mixer for switching instruments, muting, soloing, and adjusting volume
"Celestine is a real-time granular AUv3 audio effect for the iPad. It's always listening and always spitting out grains. If you've been following my channel for some time, you'll know that Celestine started out as a Max4Live device... my most successful one to date. Many people have asked for it to be ported to other platforms and this marks the beginning of that journey. I've spent the last few months on this. I've also got future plans to release Celestine as a VST3/AU for other desktop DAW users.
Just like the original, this iPad version aims for the immediacy of a pedal and the depth of a granular instrument. There are eight granular modes: classic Grain clouds, Mosaic’s harmonic tiles, Glide’s tape‑like swoops, Reverie’s reverse washes, Bloom’s halos, Tide’s pulsing waves, Stars’ sequenced sparkles and Orbit’s swirling stereo motion. Everything stays tempo‑locked when you want it to in Sync mode, the (now touch-based) visualizer lets you perform playhead and pitch gestures on the fly, and the grain panel offers control over density, size, spray, jitter, reverse probability and more.
To shape the final output, Celestine includes a 'Magic panel' of various multi-FX to sweeten things, a lush reverb and a Dirt section with wavefolding and a bitcrusher. Use Celestine as an insert effect and set the dry/wet to taste or put it fully wet on a send to let fragments of your entire session bloom into shimmering clouds. I’ve found it shines on vocals, guitars, synths and pianos, but percussion can turn into glittering glitches and rhythmic sparkles too. I've also added undo/redo, a full preset system and a constrained randomizer to jump to new ideas quickly.
As I mentioned, I’m planning future releases for VST3/AU on desktop, so this is just the beginning of Celestine’s journey. For now, I hope you enjoy sculpting sounds on the couch, in the bathtub or wherever you like to use your iPad. :)
Celestine for iPadOS has an introductory price of $5.99 USD for the first two weeks and then will jump up to $9.99.
Celestine on the App Store
Also, I've recently started up a Discord server and while it's still small, I'd love for you to join and come say hi. I love the community that has built around my work and if we can find new ways to connect, it would be great. Join it here: / discord
"HollowTone is built on a simple but quietly ambitious idea: that a soundscape can be alive. Not just looping, not just evolving, but genuinely breathing as a world of its own. Instead of relying on samples or fixed recordings, it uses procedural audio, sound generated in real time through algorithms, to let each layer respond, shift, and intertwine like living matter.
Because every layer is synthesized at the moment you hear it, they can balance themselves, lean into each other, or gently collide in ways that feel organic and unpredictable. Mist, pulse, liquid motion, digital sparks, a whisper behind a veil - each one is its own environment, yet together they form a single, continuous dimension.
And that's the heart of HollowTone: a place where textures drift like fog, pulses echo through unseen structures, and strange atmospheres unfold with the quiet logic of dreamworlds and liminal spaces. You don't just listen to it. You step into it, and it keeps reshaping itself around you, endlessly."
"Rotobo is a singing voice synthesizer. Write a melody in the piano roll, type a word on each note, and Roboto sings it. The voice is synthesized with no samples, from a glottal pulse source, five formant resonators and shaped noise for consonants. Roboto is free and runs as a plugin or standalone on macOS, Windows, Linux, iPhone and iPad."
Piano roll where every note carries a word. A note named + sings the next syllable of the previous word.
Text tab that holds the whole song as text (word:note:beats), so songs can be typed or pasted.
Automation curves along the song for volume, pitch bend, vibrato depth, breath, formant shift and chorus.
Built-in songs in every language to try.
Import MIDI, karaoke MIDI (.kar), UltraStar, LRC lyrics, SRT subtitles and song text, from the menu or by dropping the file on the window. MIDI notes without lyrics are sung on "ah".
Musicalize button: plain lyric lines get a pentatonic melody, one note per syllable.
VOICE
Synthesized voice with no samples: a glottal pulse source, five formant resonators and shaped noise for consonants.
Sings in English, German, French, Spanish, Japanese, Russian, Finnish and Swedish, with spelling rules for each language. Japanese kanji are read on macOS and iOS.
"A hands-on demo of PLICATA, my first instrument in the Trambustissimo family.
PLICATA is a compact patchable monophonic synth for iOS, available as a standalone instrument and AUv3. It combines a morphing VCO, independent interval SUB oscillator, wavefolder, resonant filter, modulation, a 28-point patch system, microtonal XY keyboard, MIDI/MPE, complete-state presets, and a 32-step performance arpeggiator with probability, ratchets, HOLD/FILL, mutation, freeze and recallable scenes.
PLICATA is the first of six independently developed Trambustissimo instruments inspired by classic Moog instruments and workflows. The wider project also includes TACTA, a six-voice percussion instrument inspired by the Nord Drum 2's six-channel architecture and expanded around deeper synthesis, sequencing and performance.
These are independent instruments developed by Alessandro Guardascione. References to Moog and Nord products are descriptive only; there is no affiliation, endorsement, sponsorship or licensing relationship with those companies."
"Diosynth Live is now available for iOS and Android, bringing fast access to your favorite patches, system settings, and MIDI settings directly on your mobile phone.
Find the Diosynth Live app on the Apple App Store and Google Play Store.
0:00 intro
0:28 App organization
1:00 requirements
1:25 connecting to the app
1:40 USB connection
2:17 Bluetooth connection
3:00 Favorites
3:45 Setup tab
"Aito Ventures is launching an new app. Detune is an iPhone app that teaches sound design and music theory through short interactive lessons. It runs its own wavetable synth engine, and every lesson, challenge and free-play session is played on that engine rather than on video.
The Sound Synthesis path is 29 modules across seven acts, covering waveforms, the volume envelope, the filter, two-oscillator patches, filter envelopes, the LFO, resonance, effects, mono and glide, the sub oscillator, noise, the modulation matrix, and FM, ring modulation and hard sync. Each act ends with a checkpoint patch the user builds from scratch and keeps.
The Music Theory path is ten modules (scales, triads, chord changes, minor colour, fifths and octaves, chord progressions, melody, keys, and rhythm) taught by ear, with no notation required.
Challenges are ear-based: pick the brighter of two sounds, match a target patch, place the notes. A daily patch gives one sound-design problem per day.
Synth engine: two wavetable oscillators plus a sub oscillator and noise source; low-pass, band-pass and high-pass filter with resonance; two envelopes; LFO; modulation matrix; delay, reverb, distortion, chorus and phaser.
Pricing: free to download. Pro unlocks every module in both paths and unlimited lessons: $59.99 per year with a 7-day free trial, or $12.99 per month."
"Retromulator is a multi-core retro hardware emulation app and AUv3 plug-in that brings legendary synthesizer, sampler, and keyboard cores back to life through authentic low-level emulation. Each core runs its actual firmware, physical model, or sample data — delivering the unmistakable character of the hardware that defined electronic music from the early 80s through the 2000s.
— EMULATED CORES —
VIRTUAL ANALOG SYNTHS
Motorola DSP 56300 recreation (interpreter mode), built on the open-source Gearmulator by the dsp56300 team:
• Access Virus A, B and C • Access Virus TI / TI2 / Snow • Clavia Nord Lead 2X • Waldorf microQ • Waldorf Microwave XT
FM SYNTHESIS
• Yamaha DX7 — original chip set emulation, based on VDX7 by Charles Chiaccona
• Yamaha OPL3 — Nuked OPL3 cycle-accurate FM by Nuke.YKT
"Tape Fiasco 2 is now on iPad. Not a stripped-down companion app: the same engine that runs on macOS and Windows, rebuilt for touch, as a standalone app and an AUv3 plugin.
BUILT FOR IPAD
• Standalone app or AUv3 in AUM, Logic Pro, GarageBand, Cubasis, Loopy Pro, Drambo and other AUv3 hosts.
• Load your own audio as the sound source, or start from the built-in factory loop library.
• Record the output and share or save a WAV straight from the app.
• Ableton Link for tempo and phase sync across your network.
• MIDI Learn with mappings that persist across relaunches.
• Two-finger scrolling, resizable and rotatable layouts, touch targets tuned for fingers instead of a mouse.
• Background audio, so it keeps running when you switch apps.
"Most audio plugins process your sound. Tape Fiasco performs it. Four independent time engines run simultaneously: a dual-grain stretcher that slows, freezes and scrubs in real time; a tape machine with wow, flutter, stop and scratch; a rhythmic slicer that repeats at any subdivision; and BendIt, a circuit-bent buffer mangler with a seven-zone pitch macro from subtle wobble to full DJ scratch, quantized to the host grid. Chain them in any order.
Behind the time engines sits another 30 effects, from spectral filtering and modal resonators to distortion, bit destruction, circuit bending and beyond, followed by a master stage with a three-band EQ, compressor, soft limiter and auto gain.
Routing goes deep. Animate any parameter with multiple modulators: LFOs, random sources, envelope followers, and bezier graph editors. Sequencers stretch, bend and stutter. The Perform section puts four macros and an X/Y pad on the front panel, each routing to up to five destinations with three-point crossfade curves, all recordable as host automation. If it moves on screen, you can automate, sequence, or modulate it."
"GlitchShredder is now available for iPhone and iPad — Standalone and AUv3.
No talking, no tutorial: just AUM, a drum loop, and GlitchShredder chewing through it. I load the effect, run through some presets, and play with the Chopper, Decimator and Stutter Sync controls to show what the engine does to a simple beat.
GlitchShredder is a zero-crossing chopper with a probabilistic glitch engine. It slices the incoming signal into segments and reassembles them in a different order, backwards, at the wrong speed, or completely at random — from subtle rhythmic artifacts to total deconstruction of the source.
"MPEdie is a free MPE (MIDI Polyphonic Expression) controller app for iOS. In this walkthrough I'll show you the main features and how to use them — perfect both as a demo and as a quick tutorial to get started.
MPEdie turns your iPhone or iPad into an expressive MPE controller, letting you play with per-note pitch bend, glide, and other expressive gestures that follow the geometry of the keyboard — just like a real MPE instrument.
If you're into MPE synths, expressive MIDI controllers, or just want a free, easy way to add expression to your playing on iOS, give MPEdie a try.
"Today we are taking a look at Super 606 by AudioKit Pro for iOS inspired by the legendary Roland 606 drum machine. It has been a while since AudioKit released a drum centric app and this one might just be the droids you are looking for. In this video, I’ll give a quick walkthrough of the app and demo a bunch of presets.
Inspired by classic hardware. *Roland Cloud and TR-606 are trademarks of Roland Corporation. SUPER 606 is not affiliated with or endorsed by Roland Corporation.
SUPER 606 features SYNTH generated drums. Give your music movement, character, and life.
"I released my new physics based generative MIDI app, Wind Chimes.
- Adjust the wind physics parameters.
- Strike the chimes yourself to play it by hand.
- Adjust each chime’s note and physics.
- Chime motion can also stream out as MIDI CC for modulation."
"Rithmatic turns the 64-slot Korg volca FM2 into a searchable, offline library of tens of thousands of classic DX7 patches, all credited to the public collections they came from, and pushes any voice straight to the synth, with full one-file backup and restore of the whole box, plus real-time control of its sequencer transport and live motion. And because it carries its own FM engine, Rithmatic is a playable DX7-style synth in its own right: plug in any MIDI keyboard and play those patches with no hardware synth at all. Korg never made a librarian for the FM2, and unlike the desktop options (Dexed, Patch Base) this one runs on the phone already in your bag. Free, local-first, no account.
Music tooling is a big part of what we do, and we also make Emojio Paint Composer, a browser music sequencer that speaks full MIDI."
"MathSynth is a free iOS platform where mathematical functions become musical instruments. The idea is to explore the connection between mathematics and sound, not simply as an educational tool, but as an actual instrument for making music, learning, sharing and experimenting with different types of synthesis.
Beta users get a 3-months free Premium Pass using the coupon code shown on the website. There's also a Founding Member challenge: save 10 sounds during your trial and qualify for a Founding Member reward when MathSynth officially launches.
I reached out to MathSynth asking if there were any demos on YouTube. They said they would be coming. I'll be sure to follow up with them. Until then, feel free to give the Beta a try.
"Oktopus is a powerful, deep synthesizer and production environment built from the ground up for advanced sound design, live performance, and music creation on Windows/Mac/iOS.
Features:
8-block synth architecture for layered and evolving sounds
MPE and MIDI input support
AUv3 instrument support for compatible hosts
Sample loading, slicing, and playback tools
Built-in recording and sample export workflow
Per-block arpeggiator and sequencing controls
LFOs, modulation routing, and performance macros
Factory presets and factory samples included
Flexible effects chain with EQ, distortion, bitcrusher, compressor, phaser, flanger, chorus, filter, delay, and reverb
Touch-friendly interface for iPhone and iPad music creation
Oktopus is made for producers, composers, and experimental musicians who want a powerful synth environment that can move from quick ideas to detailed sound design."
"Mighty Synth Sampler is out now, FREE on iPhone, iPad, and Mac!
In this video, I share the story behind the app, demo the sounds, and discuss the four pillars of Mighty Synth Sampler: Synth, Sampler, Sound Packs, & AUv3 Support. The app plays sound packs, SF2s, SFZs, and your own custom samples in standalone or as an AUv3 plugin. I can't wait to hear what you all make with it!
