Sinusoid vs MsyMetronom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sinusoid
Create music with a retro 8-bit inspired sound machine. Features 4 channels for tones and drums, with extensive sound sculpting options like filters, modulation, and effects. Export your creations and integrate with other music apps.
- 4 sound channels (3 tones, 1 drum/noise)
- Extensive audio parameters (envelope, vibrato, glide, filter)
- Ring modulation and FM synthesis
- Arpeggiator, delay, and bit crusher effects
- MIDI input and output support
- Audiobus, IAA, and AUv3 integration
- AIFF export and in-app music player
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Sinusoid is a tracker/sequencer sound machine inspired by retro 8 bit game consoles. It has 4 sound channels where 3 play tones and 1 plays drums and noise. It has audio parameters like pan, amplitude envelope, vibrato, pitch glide, a resonant filter and second oscillator for ring modulation and fm. Further sculpt the sound with an arpeggiator, delay and bit crusher. Export songs to AIFF and listen to them in the in app music player or share them with other apps. MIDI can be used to control parameters, play and input notes. MIDI out makes it possible to play other synths with sinusoid using Core MIDI, Bluetooth, IAA MIDI or AUv3 MIDI. Connect to other sound apps using Audiobus, Inter App Audio or AUv3. +++ 3 tone channels: sinusoid, square, triangle, saw, pulse (75%, 50%, 25% or 12.5%) +++ 1 drum/noise channel +++ Stereo pan +++ Amplitude envelope (attack, length and release) +++ 2nd oscillator for fm and ring modulation +++ Vibrato +++ Pitch glide +++ Resonant filter +++ Arpeggio/stutter +++ Tape delay +++ Bit/samplerate crush +++ Per note ability to override all channel audio parameters +++ Copy/paste between devices on the same network +++ Save and share projects using “open with” and files app drag’n drop +++ Export to songs to AIFF +++ Core MIDI, Bluetooth, IAA MIDI, AUv3 MIDI +++ Audiobus, IAA and AUv3
MsyMetronom
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To set a rhythm, a textual programming interface is provided. The sounds are denoted by single characters. For example the character 'g' represents a Claves sound. The length of the sound is given as fraction of the beat. Examples: 1. "g" means, sound g is repeatedly played with the tempo given by the beats per minute setting. g1 is identical to g. The one can be omitted. 2. "a b b b" ... is a rhythm of 4 notes with two sounds 'a' for AgogoHigh and 'b' for AgogoLow. The sounds are running in a loop. 3. "a b z" ... rhythm of 3 notes. 'z' denotes a pause, 4. "d/2 d/2 c3/2 d/2" ... pattern with fractions of beats; first two notes have a half beat duration; then a note with one and a half beat duration follows; then a note with a half beat duration again. 5. "h/3" in the first line and "j/4" in the second line results in high and low bongo notes playing four against three. In similar manner complex polyrhythms can be set. The lines are looping even if they have different durations. An extra keyboard allows efficient editing of rhythms. The drum sound inventory of 43 sounds can be inspected from the keyboard by typing the '~'. In addition to the three drum sound tracks, a light metronome can be programmed in similar manner. The lights are set with the letters w, r, g, b, y, m, c and d, meaning the colors white, red, green, blue, yellow, magenta, cyan and dark (black). Example: b2 d2 ... two beats blue, two beats black. Further a surface with configurable drum pads supports drumming interaction and memorizing the drum sound letters. The pads can be added from the drum sound inventory by pressing '+', reordered by long pressing the pad and dragging and dropping, and removed with '-' if needed. Beside a slider for adjusting the overall loudness, the individual drum sound loudness can be set by adding a plus or minus sign followed by a number in the range from -9 to 9. For example 'd/2-4' would reduce the sound level for 4 dB. The Store allows to select a rhythm from the repository. Around 20 preset rhythms are provided. Self created rhythms can be named, added to the list and saved for later use. Help information is provided at a fingertip.
Screenshots
Verdict
The clearest difference is update cadence: Sinusoid at every 3 months against MsyMetronom's every 39 months. Sinusoid also leads on iOS requirement (9.0 vs 17.6). MsyMetronom's advantage is price ($0.99 vs $4.99). On 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
Sinusoid costs $4.99 and MsyMetronom $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sinusoid ships an update every 3 months, MsyMetronom every 39 months. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.
| Parameter | Sinusoid | MsyMetronom |
|---|---|---|
| Price | $4.99 | $0.99 — better |
| Rating | 4.9 (13 ratings) — better | — |
| Positive reviews | 68.8% of reviews | — |
| Number of ratings | 13 — better | — |
| Update frequency | Every 3 months — better | Every 39 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Erik Sigth | Bernhard Feiten |
In-app purchases
Sinusoid
No in-app purchases
MsyMetronom
No in-app purchases









