Virtual ANS 3 vs VOSIS Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Virtual ANS 3
This app simulates a unique photoelectronic musical instrument, allowing users to draw music as spectrograms. It functions as a graphics editor to convert sound to images and vice versa, enabling the creation of atmospheric sounds and microtonal music.
- Unlimited pure tone generators
- Sonogram editor for drawing and playing spectra
- Convert sound to image and vice versa
- MIDI device support
- Polyphonic synth mode with MIDI mapping
- Audio Unit Extension (AUv3) and Audiobus support
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Virtual ANS is a software simulator of the unique Russian synthesizer ANS - photoelectronic musical instrument created by Evgeny Murzin from 1938 to 1958. The ANS made it possible to draw music in the form of a spectrogram (sonogram), without live instruments and performers. It was used by Stanislav Kreichi, Alfred Schnittke, Edward Artemiev and other Soviet composers in their experimental works. You can also hear the sound of the ANS in Andrei Tarkovsky's movies Solaris, The Mirror, Stalker. The simulator extends the capabilities of the original instrument. Now it's a full-featured graphics editor where you can convert sound into an image, load and play pictures, draw microtonal/spectral music and create some unusual deep atmospheric sounds. This app is for everyone who loves experiments and is looking for something new. Key features: * unlimited number of pure tone generators; * powerful sonogram editor - you can draw the spectrum and play it at the same time; * any sound (from a WAV file or a Microphone/Line-in) can be converted to image (sonogram) and vice versa; * support for MIDI devices; * polyphonic synth mode with MIDI mapping; * supported file formats: WAV (only uncompressed PCM), PNG, JPEG, GIF; * Audio Unit Extension (AUv3), Audiobus; * many new features compared to version 2.3; see the full list: https://warmplace.ru/soft/ans/changelog.txt Homepage, user manual and versions for other systems: https://warmplace.ru/soft/ans
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!
Screenshots
Verdict
The clearest difference is review sentiment: Virtual ANS 3 at 88% against VOSIS Pro's 67%. Virtual ANS 3 also leads on rating (4.8 vs 4.6) and ratings volume (57 vs 7). On update cadence, 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
Virtual ANS 3 costs $5.99 and VOSIS Pro $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Virtual ANS 3 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Virtual ANS 3 has 57 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 88% of Virtual ANS 3's written reviews are positive against 67% of VOSIS Pro's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.
| Parameter | Virtual ANS 3 | VOSIS Pro |
|---|---|---|
| Price | $5.99 — better | $7.99 |
| Rating | 4.8 (57 ratings) — better | 4.6 (7 ratings) |
| Positive reviews | 87.5% of reviews — better | 66.7% of reviews |
| Number of ratings | 57 — better | 7 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 31 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Zolotov | Life Orange LLC |
Customer experience
Virtual ANS 3
VOSIS Pro
In-app purchases
Virtual ANS 3
No in-app purchases
VOSIS Pro
No in-app purchases









