STEPS vs Saucillator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STEPS
Create complex rhythmic patterns with this powerful MIDI sequencer. Control any MIDI-compatible app, send MIDI over network, and synchronize external hardware synths. Features a user-friendly interface for seamless performance and editing.
- MIDI-out system
- Bluetooth LE MIDI support
- Audiobus 3 support
- External hardware synchronization
- Performance and editing modes
- Ableton Link integration
- Global swing and BPM control
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Steps by Reactable is a small yet powerful MIDI sequencer that allows you to create complex rhythmic patterns in a surprising new way. Forget piano rolls and experiment with Steps’ inspiring dials. With Steps you can control any MIDI compatible app, send MIDI over network to your laptop or any other compatible device, and even synchronize external hardware analog synths such as Korg Volcas or Pocket Operators via an audio cable. Features: - Plug and play MIDI-out system automatically sends to all available MIDI input ports and our own virtual port. - Bluetooth LE MIDI support - Audiobus 3 Support as MIDI and Audio Sender - Connect your iDevice with an external MIDI interface and control MIDI hardware. - Synchronize external hardware synths such as Korg Volca or Pocket operators via the audio output. - A carefully designed user interface that allows you to quickly switch between performance to editing mode. - Play together with Ableton Link and sync multiple apps and devices over WiFi. - Global Swing function (50% - 75%) - applied automatically to eight and sixteenth notes. - Save and recall sequences, seamlessly during playback. - Global bpm control ranging from 20 to 999 BPM. - Global Gate level allows global control of note duration. - Global MIDI velocity control. - Global Glide function applies pitch bend to small distances between adjacent steps (if the synth being controlled supports pitch bend). - Global transpose ribbon allows for easy transposition of the entire pattern. - Step pitch preview function (available while transport is stopped).
Saucillator
Create and play custom synthesizers and instruments on your mobile device. Manipulate oscillators and effects with touch, record live loops, and design unique sounds with a variety of timbres and customizable effects. Supports AUv3 for use in other music production apps.
- Custom synthesizer creation
- Touchscreen oscillator manipulation
- Live looping and recording
- AUv3 instrument support
- Multi-track looper and beat generator
- Parametric EQ and filters
- MIDI controller support
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Musical inspiration at the touch of your fingertips - from doodle to zen in seconds. Inspired by the Korg Kaossilator and Moog synthesizers, Saucillator transforms mobile devices into a platform for creating, playing, and sharing digital synthesizers. Users use the touchscreen to manipulate oscillators and effects, and can also do live-looping and recording. Our goal is to be beginner friendly while at the same time offering all the deep, complex features traditional synth users love. Saucillator also now supports AUv3 so you can use many of its features in AUv3-supported host applications (tested with AUM, Loopy Pro, Garageband. Note that some host applications only support some output). A multi track looper and beat generator are available to create synth loops and synchronize a beat/click track alongside it. Loops can be modified, toggled, and added as you're playing. Users are able to play custom modular synthesizers using the x-y axes of the touchscreen. The x-axis corresponds to amplitude (volume) and the y-axis corresponds to frequency (pitch). Playback can also be looped, recorded, and EQed using a Parametric EQ. An Arpeggiator play mode also allows the touched notes to be arpeggiated, with customizable rate, pattern, gate, etc. On top of performing, users are able to create their own custom synthesizers, which consist of a custom timbre and user-defined effects. A variety of timbres are included: Sine, Square, Saw, Pulse, Noise, Theremin, "Singing Saw", "Electric Eel", and "Starslide" (among many more). These, as well as any user-created synths, can be mixed and matched at different harmonics, amplitudes, and phases to create custom sounds. Each synth has customizable fx parameters as well, including Envelope (ADSR - attack & release), Vibrato LFO (rate & depth), Tremolo, Reverb, Delay, Chorus, Distortion, Parametric EQ, and Note Lag (Portamento). We also include a Filter (low-pass, highpass, bandpass) that can be modulated using an Envelope or LFO. Custom synths can also be shared with the Saucillator community via an easy built-in sharing tool. Download other users' synths or upload your own, all from in app! Other abilities: -Choose scale: Pentatonic, Major, Minor, Blues, or Chromatic (among others). -Choose the base note for the pad. -Control the grid size. -Record to disk. -Live visualization of waveforms. -Play synths with external midi controllers -AUv3 instrument support Saucillator. I think it's the sauce, boss!
Screenshots
Verdict
The clearest difference is price: Saucillator at Free against STEPS's $0.99. Saucillator also leads on rating (4.9 vs 3.9) and review sentiment (92% vs 56%). STEPS's advantage is iOS requirement (9.0 vs 15.0). On ratings volume, ads, in-app purchases 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
Saucillator is free to download; STEPS costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Saucillator holds the better App Store score, 4.9 against 3.9. Both are backed by a comparable volume of ratings — 13 and 35 respectively. Written reviews point the same way: 56% of STEPS's written reviews are positive against 92% of Saucillator's.
STEPS ships an update every 3 weeks, Saucillator every 8 days. The most recent releases landed on September 24, 2026 and October 3, 2026 respectively.
| Parameter | STEPS | Saucillator |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.9 (13 ratings) | 4.9 (35 ratings) — better |
| Positive reviews | 55.6% of reviews | 92.3% of reviews — better |
| Number of ratings | 13 | 35 — better |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | Reactable Systems SL | Green Noise LLC |
Customer experience
STEPS
Saucillator
In-app purchases
STEPS
No in-app purchases
Saucillator
No in-app purchases









