Local multi-video workspace
Parta Watch
Watch, compare and control up to four videos at once.
Scroll
One to four videos
See more.
Control each view.
Open local videos in sixteen layouts. Play, pause, mute, seek and repeat each panel independently, with seven speeds from 0.25x to 2x.
Completely offline / no account / no cloud
Independent controls
Adjust the panel.
Keep its state.
Zoom, pan, rotate, mirror and tune brightness, contrast, saturation or grayscale. State-preserving swap moves the panel with its media, position, play state, rate, volume, transforms and loop markers intact.
Protan / Deutan / Tritan visual aids, not medical correction
Micro-Sync
Bring two views
to the same moment.
Choose a reference panel, then a target. Micro-Sync transfers effective timeline position, playback rate and playing or paused state.
Not continuous frame-lock synchronisation. A small residual delay may remain.
Local by design
Your videos
stay on the device.
Parta Watch is completely offline. It requires no cloud, account, advertising, analytics or tracking. Website support submissions are separate from the app and contain only the information you voluntarily provide.
Viewing / coaching / inspection / research / education / creator review
Paid Android open beta
Parta Watch
€14.99 once. No subscription.
The Google Play link will be added when the final listing is available. For support or beta feedback, email support@parta.app or use the form.
Product questions
Questions
How many videos can I open?
One to four local videos, including the same file in more than one panel.
Can each video be controlled independently?
Yes. Playback, speed, mute, volume, looping, transforms and image adjustments are controlled per panel.
Which playback speeds are available?
0.25x, 0.5x, 0.75x, 1x, 1.25x, 1.5x and 2x.
What layouts are included?
Sixteen layouts across one to four videos, including side-by-side, stacked, grid and asymmetric arrangements.
What does state-preserving swap retain?
The media, timeline position, play state, rate, volume, zoom, pan, rotation, mirror, A/B markers and visual adjustments move with the panel.
Does Micro-Sync keep videos continuously frame-locked?
No. It transfers position, rate and play state from a reference to a target. A small residual delay may remain.
Product questions
Questions, continued.
Does Parta Watch upload my videos?
No. The app is completely offline and videos remain on the device.
Do I need an account or subscription?
No account is required. The Android app costs €14.99 as a one-off purchase.
What are Quality, Balanced and Performance?
They are rendering profiles for matching visual quality and interface cadence to the device and workload.
Are Protan, Deutan and Tritan modes medical correction?
No. They are visual accessibility aids, not diagnosis, treatment or medical correction.
What if a video does not play correctly?
Compatibility depends on the device and available media decoders. Send the app build, device, Android version and reproduction steps through support.