Plotar Privacy Policy

Plotar is a Mac app for scientific graphs and data analysis, developed by Mário Brito.

Summary

• Your files, worksheets and graphs stay on your Mac. Plotar has no user account, ads, tracking or usage analytics.
• Only the Assistant (Plotar AI) sends data over the internet, and only when you send it a request.
• Request content is not stored on Plotar's server. Only the purchase identifier, the credits and a usage count for each request are kept.

The Assistant (Plotar AI)

When you send a request, Plotar sends to the Plotar AI service: the text of the request and of the current conversation; a summary of the open project (names of worksheets, columns and graphs, and graph settings); worksheet values the Assistant reads to answer; files you attach; the purchase receipt signed by Apple (it has no name, email or payment data); and the interface language. The service runs on Cloudflare and forwards the request to Anthropic's Claude model, which handles the content under Anthropic's commercial terms and privacy policy. Under Anthropic's policy in force on this date, API inputs and outputs are deleted within 30 days and are not used to train models, except requests flagged for violating Anthropic's usage policy (kept up to 2 years) or where the law requires. If you do not use the Assistant, none of this data leaves your Mac.

What Plotar's server keeps

The Apple transaction identifier, the plan, billing period and credits, and for each request its date and time, model, token counts, cost and result code; refunds and revocations reported by Apple. It does not store request text, answers, attachments or worksheet data, and the service code does not store your IP address.

How long

Request records are deleted automatically after 12 months; a subscription's balance 12 months after its billing period ends. The record of the trial credits that come with the app purchase and the record of refunds are kept while the service exists, so trial credits are given once and refunded receipts stay blocked.

Purchases, sharing and your rights

Purchases are processed by Apple; Plotar never receives payment details. Data is shared only with Cloudflare (hosting) and Anthropic (AI model), never sold or used for advertising. To request access, correction or deletion of data linked to your purchase, write to mariobsnunes@gmail.com.