Privacy Policy

Last updated: October 2026

Viewport ("the App") is a web application for scheduling and publishing a creator's own video content to Instagram, YouTube, and TikTok, and for reviewing how that content performed. This policy explains what data the App handles and why.

Who this applies to

This policy applies to people who create an account and use the App to publish their own content. If you are reading this because you saw a post published through the App on TikTok, Instagram, or YouTube, this policy does not apply to you — see the relevant platform's own privacy policy.

What the App handles

• Video files and captions the user uploads in order to schedule a post.
• Publishing status of those posts, and the public performance metrics of them (views, reach, likes, comments, saves, shares, watch time, skip rate) retrieved through each platform's official API.
• Authorisation tokens for the social media accounts the user connects, used solely to publish on the user's behalf and read metrics for the user's own posts.
• An email address and password, where the user creates an account to use the App.

What the App does not do

• Does not collect data about the audience or viewers of published content.
• Does not sell or rent data, or use it for advertising or profiling.
• Does not access any social media account the user has not explicitly connected.
• Does not use uploaded content for any purpose other than publishing it as the user instructed.

Storage and processing

Uploaded videos, captions, the publishing queue and metrics are stored in the App's database and file storage, separated per account, and used only to operate the features the user asked for. Each account can see only its own data. The App relies on these providers to run, each processing data only to deliver the App's functionality:

• Supabase — the database, account sign-in and video file storage.
• Cloudflare — serves the App.
• Composio — holds the authorisation for connected Instagram, YouTube and TikTok accounts and passes publishing and metrics requests to those platforms.
• Groq — drafts captions from the description the user writes, when the user asks for a draft, and writes the summaries on the Insights page from the user's own post metrics.
• GitHub — runs the scheduled jobs that publish posts and read back metrics.

Retention and deletion

Account data, captions, the publishing queue and metrics are kept while the user's account is active. Uploaded video files are kept only as long as they are needed: a video is deleted once its post has been published or cancelled, 14 days after a post failed, and 48 hours after upload if it was never added to the queue. A user can disconnect any social media account at any time, which revokes the App's access to it, and can request deletion of their account and all associated data by writing to the address below; deleting an account deletes its posts, metrics and stored videos. Content already published to a platform must be removed on that platform.

Your rights

Users may request a copy of the data held about them, ask for it to be corrected, or ask for it to be deleted. Requests can be sent to the address below.

Changes to this policy

This policy may be updated. Material changes will be reflected in the "last updated" date above.

Contact

Viewport is operated by Tomáš Dvořák. Questions about this policy, or a data request, can be sent to tdvorak369@gmail.com.