Timetracks4D vs PixiVisor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timetracks4D
Create unique moving photographs with a slit-scan camera effect. Adjust scan movement, time intervals, resolution, and exposure for custom results. Automatically save your creations periodically.
- Slit-scan camera effect
- Adjustable scan movement (One-way, Palindrome, Still)
- Customizable scan time interval
- Image resolution settings
- Scan line width adjustment
- Exposure lock
- Automatic image saving
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Timetracks4D is a camera that cuts time out as if it were space. Think of video as a cube stacked in three directions: width, height and time. Ordinary playback cuts that cube straight across time and shows you the slices one after another. Timetracks4D tilts the cut. Once it is tilted, every place on the screen shows a different moment: whatever held still comes out as it was, and only what moved is twisted. ■ Two ways to shoot [Movie] Records while the cut turns. The tilt changes from frame to frame, so the picture keeps moving. Angle, Speed and Window Time change how it twists. [Still] Builds one picture by stacking narrow bands, one at a time. Each band was taken at a different moment, so the finished picture reads as the flow of time from top to bottom. This is the slit scan, the way the first Timetracks worked. It saves a long picture: eight screenfuls joined end to end, each at the camera's own resolution. Both are made from the same camera feed, but they treat time differently, so each one has its own settings. ■ Main settings - Camera (Back / Front), Zoom (Lens), Resolution, Frame Rate - Transform (Shear / Rotate) and the edge time runs along (Long Edge / Short Edge) - Auto Rotate speed, Angle, Window Time - How the band moves (One-way / Palindrome / Wave / Fixed / Drift / Random) - Interval between bands, from single frames to hours - Scan Width - Full Screen, Show Buttons, Touch Gestures, Prevent Auto-Lock - Add Location There is a button that randomizes the settings. If you are not sure what to touch first, press that. ■ Getting a good result Hold the device still. If the device moves, the whole picture moves with it and you cannot tell that apart from the subject moving. A tripod or a table is the sure way. Point it at something that moves. A still subject seen from a still device gives the same picture at every moment, so nothing happens. People walking, a hand, water, traffic, anything swaying in the wind - these work well. Once you have the feel of it, try moving the device instead. That is where the more complicated shapes come from. ■ Pricing Everything except recording is free. Play with the camera and the settings as much as you like; the picture you would get is on the screen already. Try it first. Full Access (a one-time in-app purchase) removes the ad and lets you save movies and stills. If you have already bought Timetracks, you do not need to buy anything. Full Access turns on by itself when you update.
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
Screenshots
Verdict
The clearest difference is review sentiment: PixiVisor at 80% against Timetracks4D's 23%. PixiVisor also leads on rating (4.3 vs 1.0) and in-app purchases (none vs 1). Timetracks4D's advantage is price (Free vs $2.99) and update cadence (every 3 weeks vs every 21 months). On 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
Timetracks4D is free to download; PixiVisor costs $2.99 up front. Timetracks4D sells 1 one-off in-app purchase. PixiVisor asks for nothing beyond the download.
PixiVisor holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: PixiVisor has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 23% of Timetracks4D's written reviews are positive against 80% of PixiVisor's.
Timetracks4D ships an update every 3 weeks, PixiVisor every 21 months. Both last shipped on November 1, 2026.
| Parameter | Timetracks4D | PixiVisor |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 1.0 (1 ratings) | 4.3 (24 ratings) — better |
| Positive reviews | 23.2% of reviews | 80.0% of reviews — better |
| Number of ratings | 1 | 24 — better |
| Update frequency | Every 3 weeks — better | Every 21 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Masayuki Akamatsu | Alexander Zolotov |
Customer experience
Timetracks4D
PixiVisor
In-app purchases
Timetracks4D
- Full Access$3.99
PixiVisor
No in-app purchases









