PixiVisor vs ca
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PixiVisor
This app enables real-time transmission of low-resolution video over audio signals. It converts images, camera streams, or animations into sound, which can then be received and converted back into video on another device. Users can customize the video output and save it as an animated GIF.
- Video to audio transmission
- Audio to video reception
- Real-time pixel-by-pixel conversion
- Customizable color palettes
- Animated GIF recording
- Lo-Fi video experimentation
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PixiVisor is a tool for experimenting with the transmission of video over audio. It consists of two parts: Transmitter and Receiver. * Transmitter converts the low-resolution video (stream from camera, static image or GIF animation) to sound in real time, pixel by pixel (progressive scan). So any image or animation can be transferred to the other devices through the sound. * Receiver converts the sound (from microphone or Line-in input) back to video. You can set the color palette for this video, and record it to animated GIF file. Examples of use: * wireless Lo-Fi video transmission over audio; * video signal transmission through audio cable; you can then modify that signal by some mixers or audio FX processors; * VJing; * sound visualization; * searching for hidden messages in the ambient noise; EVP (Electronic Voice Phenomenon), ITC (Instrumental Transcommunication); * save any sound to animated GIF; * something else... Control keys: SPACE - play/stop (transmitter); 1,2,3,4,5,6 - slot select (transmitter); F - hide/show control panel; [ - previous palette (receiver); ] - next palette (receiver); I - invert (receiver);. N - normalize (receiver); 1,2 - contrast -/+ (receiver);. 3,4 - gamma -/+ (receiver); 5,6 - finetune -/+ (receiver); 7,8 - repeat X -/+ (receiver); 9,0 - repeat Y -/+ (receiver); LEFT,RIGHT,UP,DOWN - move the image (receiver). More info + test broadcasts + videos: https://warmplace.ru/soft/pixivisor
ca
This app transforms your camera's live feed into unique, pixelated images and videos using cellular automata. Customize patterns with various color palettes, directions, rules, and resolutions for a retro aesthetic.
- Cellular automaton image interpretation
- Pixelated output with unique patterns
- Black and white or retro color palettes
- Selfie and split camera modes
- Video recording
- Customizable automaton parameters
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The successor of probably the nerdiest camera app ever made, ca-mera+ uses a cellular automaton to interpret the colors of your camera stream. The resulting images are pixelated and contain unique patterns created by cellular automata. The output can be black and white, or one of several retro color palettes (CGA 4 and 16 colors, 1-bit RGB, etc.). This app provides "selfie" and "split" modes, records video, and lets you change the appearance of the pictures by controlling the automaton application direction, its rules, the resolution, the input brightness, and the input fidelity (i.e. to which extent the cellular automaton is allowed to run freely).
Screenshots
Verdict
The clearest difference is monetization model: PixiVisor at free against ca's paid. PixiVisor also leads on chart position (#199 vs unranked). ca's advantage is rating (4.8 vs 4.3) and update cadence (monthly vs every 21 months). On price, ratings volume, ads and in-app purchases 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
PixiVisor costs $2.99 and ca $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ca holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 24 and 52 respectively. Written reviews point the same way: 80% of PixiVisor's written reviews are positive against 89% of ca's.
PixiVisor ships an update every 21 months, ca monthly. The most recent releases landed on September 18, 2026 and September 26, 2026 respectively.
| Parameter | PixiVisor | ca |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 4.3 (24 ratings) | 4.8 (52 ratings) — better |
| Positive reviews | 80.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 24 | 52 — better |
| Update frequency | Every 21 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #199 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Zolotov | Fritz Menzer |
Customer experience
PixiVisor
ca
In-app purchases
PixiVisor
No in-app purchases
ca
No in-app purchases









