Sentient Synthesizer vs Rimeo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentient Synthesizer
This music app creates unique sounds by learning from your environment. It uses a neural network to generate wavetables from ambient noise, voices, or music, which you can then play and manipulate. The app functions as a standalone tool or an AUv3 plugin.
- Learns from ambient sounds via microphone
- Generates unique wavetables
- Standalone app and AUv3 plugin support
- MIDI and MPE keyboard compatibility
- Adjustable ADSR envelope
- Modulation of pitch, pan, drive, and filter
- Customizable filter types (lowpass, bandpass, highpass)
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Sentient is a synthesizer that learns from the sounds around you. A self-organizing neural network listens through the microphone and grows wavetables from what it hears: street noise, voices, music, birds. You play these wavetables as notes and use them to move pitch, panning, drive and the filter. Every Sentient becomes unique to its owner and to the places it has listened to. Sentient runs as a standalone app and as an AUv3 plugin inside your favorite host. It responds to MIDI keyboards, including MPE pitch bend, and shares its memory between the app and the plugin. HOW IT WORKS When a new sound is analyzed, the neuron that best matches it updates its stored waveform and swells more than the others. Nearby neurons also update, but less strongly, so similar sounds settle close together and the sound changes smoothly as you move across the network. Two grids represent the two hemispheres of the network. The left one learns timbres, the shape of a single oscillation. The right one learns contours, the way loudness rises and falls. Each cell is a neuron. Tap a cell to choose the neuron whose wavetable the active row will play. An orange dot marks it, and the display above shows the wavetable exactly as it sounds. THE INTERFACE The controller with the eyes is the learning system. Hold it to start or stop learning: open eyes mean the network is listening. Drag vertically to change the learning rate and horizontally to change how strongly the winning neuron pulls its neighbors. You can see this in the number of open eyes and the width of the pupils. While Sentient learns, it stays silent and the network visibly swells. Below the grids are six rows, each marked with a Russian letter. The first, `Г` from `generator`, plays the wavetable as a note; its sliders set volume and the fundamental frequency. Hold `Г` to open an ADSR envelope editor. With finite sustain and hold on, notes repeat in their own rhythm and turn into melodies. The other rows are modulators. Their sliders set depth and rate, and the letter names the destination: `П` pitch from `podstroika`, `П` pan from `panorama`, `Д` drive from `drive`, `Ч` filter frequency from `chastota`, `Р` resonance from `rezonans`. Tap a letter in rhythm to set the rate by tap tempo. The display above the grids shapes the active row. Drag sideways to set the start phase, drag up or down to smooth the wavetable, hold it to turn antialiasing on or off. The controller with the stars is the filter. Drag sideways for lowpass, bandpass or highpass, drag up or down for drive. Hold it to share one filter between all notes; a green ring shows the shared mode. The curve beside it sets cutoff and resonance. At the bottom is a keyboard of eight keys drawn as Lissajous figures, curves made of two harmonic oscillations. Each figure shows the ratio of its note. The closer you touch to the center, the louder the note. Above the keys are `У` hold from `uderzhanie` and `П` tuning from `podstroika`, which lets you retune each key across 64 just-intonation steps. Hold the level meter to record what you play to a WAV file. MEMORY The controller with the planets moves through time. Drag it to browse saved memories; each one keeps the whole instrument, including the network, settings, tuning and playing notes. Double tap to return to the present. Hold it to open a menu marked with Russian letters: `С` save from `sokhranit`, `У` delete from `udalit`, `Х` close, shaped like a cross, plus arrows to export, import and replace memories as files. The planets tell time symbolically. The crescent shadow shows the time of day, the moon's position follows its 27-day orbit, and the satellite circles like the ISS. Tap the UFO at the top for a quick tour of the screen.
Rimeo
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Rimeo puts your Rekordbox DJ library on your iPhone, streamed from your own computer. Nothing is uploaded to a cloud: your audio files stay on your Mac or Windows PC. Install the free RimeoAgent app on the computer where Rekordbox lives and sign in. It finds your library by itself, so there is nothing to export: no XML, no USB stick, no copying files. Then sign in to Rimeo on your iPhone with the same account, and your playlists and tracks are there. YOUR LIBRARY, AS IN REKORDBOX • The full playlist and folder tree, with BPM, key, genre, label, artwork, play count and search • Waveforms: scrub any track by its waveform and find the part you need • MP3, WAV and AIFF, including 24-bit files LISTEN ANYWHERE • At home over Wi-Fi, or from anywhere through an encrypted connection to your own computer • Offline: download single tracks or whole playlists and play them with no signal. Downloads keep the original file PREPARE YOUR SETS • Sync to Rekordbox: build a playlist on your phone and it appears in Rekordbox with the same name, folder and track order. Rekordbox's database is backed up before every write • Similar Tracks: ideas for what plays next, picked from your own DJ library • Pulse: reads your set history back to you, such as which tracks are in rotation and which never made a set • Stems: split any track into vocals, drums, bass and more. Your computer does the work, and you listen to each part on your phone, with solo and mute. Works for audio files on your phone too FROM YOUR PHONE TO REKORDBOX • Add to my Rekordbox: got a track in Files, AirDrop or a chat? Send it to Rekordbox on your computer with its tags, then tap Show in Collection to find it • Check quality: open any audio file in Rimeo, or a downloaded track, and see its spectrogram. Spot fake lossless or upscaled files before they reach your DJ library. Nothing is saved on your phone IPHONE DUO • On the big screen your playlists, tracks and player sit side by side, and Rimeo works on the cover screen too GOOD TO KNOW • Streaming, Stems and Add to my Rekordbox need the computer with RimeoAgent to be on and online. Downloaded tracks play without it • Rimeo works with your Rekordbox library. It doesn't replace Rekordbox, and you don't DJ live with it RIMEO PREMIUM Some features need Rimeo Premium. Rimeo Premium is an auto-renewing subscription, offered monthly (USD 6.99) or yearly (USD 69.99). Prices may vary by region and are always shown on the purchase screen before you confirm. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically at the same price unless it is cancelled at least 24 hours before the end of the current period. You can manage or cancel it anytime in your Apple Account settings. Terms of Use (EULA): https://rimeo.app/terms Privacy Policy: https://rimeo.app/privacy
Screenshots
Verdict
The clearest difference is price: Rimeo at Free against Sentient Synthesizer's $4.99. Rimeo also leads on update cadence (monthly vs every 2 months). Sentient Synthesizer's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads 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
Rimeo is free to download; Sentient Synthesizer costs $4.99 up front. Rimeo sells 2 in-app purchases, starting at $6.99 per month. Sentient Synthesizer asks for nothing beyond the download.
Sentient Synthesizer ships an update every 2 months, Rimeo monthly. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.
| Parameter | Sentient Synthesizer | Rimeo |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.3 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 365 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Valery Mironov | Ilia Okhrimenko |
In-app purchases
Sentient Synthesizer
No in-app purchases
Rimeo
- Rimeo Premium$6.991 Month
- Rimeo Premium7 Days trial$69.991 Year









