VOSIS Pro vs Monandaeg
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VOSIS Pro
Transform images into unique sounds and compose visual music. This tool offers advanced filters and MIDI control for experimental sound design and creative audio manipulation.
- Image to sound conversion
- Advanced image filters
- MIDI keyboard support
- Customizable presets
- Unlimited recording
- Video file loading (iPad/Desktop)
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VOSIS is a synthesizer combining audification of greyscale pixel data with several image filters. It is a tool for image sonification, visual music composition, and experimental sound design. The audification of pixel luminance values creates shape-timbre relationships. Pixel scan rate is controlled in terms of note interval, octave, and scale to give varying pitch between image regions. The ADSR envelope allows one to play images as a non-linear sequence of pitches with varying wavetable/timbre. VOSIS Pro adds several features to VOSIS useful for sound designers and musicians: Save and load custom presets, connect a MIDI keyboard and play regions with keys, map any control and region positions to MIDI CC, unlimited recording and screen mirroring with no watermark, downsampling/blur/sharpen, and tremolo filters, subdivide large regions into step sequence mode, load video files (iPad and Desktop versions only). Visit vosis.app for sound example, demo videos, and user guide!
Monandaeg
This app allows you to create complex soundscapes by layering and manipulating your own audio recordings. It features a unique system where recordings influence each other's playback and processing, leading to evolving sonic textures and arrangements.
- Eight recordable takes (A-H)
- Adjustable fold stages with XY pads
- Configurable playback and swapping network
- Freeze and break functions
- Tape and disc texture effects
- Echo, room, and sweep send effects
- Text-to-speech voice input
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Mōnandæg plays your own recordings through a wave folder. Up to eight takes stand in a row, A to H. At any moment one or two of them are heard (PLAY), and one or two others are only listened to (FOLLOW): their loudness becomes voltage that pushes the fold — how hard it bends, and where the bends land. Every take has a gate of its own, wired into a small network; when one fires, the roles change hands. The piece keeps rearranging itself out of the sound itself. · A–H — eight takes. Tap the top of a cell to load a file, hold it to clear the take. REC→ chooses the take the microphone records into. · I · II · III — three fold stages in series, each an XY pad. · The net — how many takes, who plays, how they are read, when they swap. · FREEZE — one moment held as a chord. · BREAK — cuts and rewrites the files. · LOOP — one loop built from pieces of all of them. · TEXTURE — tape and disc: wow, flutter, hiss, skips, dropouts. · SEND — echo, room and sweep. · VOICE — the device reads a line of text aloud into a take of its own. · RADIO — internet radio as a source. · BASIC — one key: four takes, one heard, one listening, swapping every couple of seconds. · DRIFT — the pads and knobs move by themselves. iPhone and iPad, in landscape. Your recordings stay on the device.
Screenshots
Verdict
The clearest difference is rating: Monandaeg at 5.0 against VOSIS Pro's 4.6. Monandaeg also leads on update cadence (every 8 days vs every 3 months) and price ($4.99 vs $7.99). VOSIS Pro's advantage is ratings volume (7 vs 1) and device support (4 vs 2). On 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
VOSIS Pro costs $7.99 and Monandaeg $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Monandaeg holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: VOSIS Pro has 7 ratings behind it against 1, so its average is the more settled of the two.
VOSIS Pro ships an update every 3 months, Monandaeg every 8 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.
| Parameter | VOSIS Pro | Monandaeg |
|---|---|---|
| Price | $7.99 | $4.99 — better |
| Rating | 4.6 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 3 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Life Orange LLC | Kei Odaka |
Customer experience
VOSIS Pro
Monandaeg
In-app purchases
VOSIS Pro
No in-app purchases
Monandaeg
No in-app purchases









