Privacy policy
Last updated: July 7, 2026
This policy explains what information the monthlet.ai website collects and how it is used. It covers this website, the download endpoint, and the monthlet AI waitlist. The monthlet desktop app stores your notes on your device; we do not receive them. The app itself is governed by its EULA, shown on first launch.
Information we collect
Waitlist. When you join the monthlet AI waitlist, we store your email address, your language preference, the time of signup, and your browser’s user-agent string. We use this only to notify you when monthlet AI becomes available and to share closely related product updates. We do not use it for anything else.
Download counting. When you download the app via /download, we record a one-way hash of your IP address (SHA-256 with a salt that changes daily), the date, and your browser’s user-agent. The raw IP address is never stored, and the hash cannot be traced back to you. This exists only to count unique downloads per day.
Site analytics. We use Cloudflare Web Analytics, which is cookie-less and aggregate. It does not identify individual visitors.
Cookies. This website does not use cookies for tracking.
Where your data lives
The website and its data run on Cloudflare (hosting, the waitlist database, and analytics). Waitlist entries are also copied to a private Google Sheet for operational review. The download itself is served from GitHub Releases, so GitHub receives your IP address when downloading, under its own privacy policy.
We do not sell your data, show ads, or share your information with anyone beyond the service providers above.
Retention and removal
Waitlist entries are kept until they have served their purpose (notifying you about monthlet AI) or until you ask us to remove yours. To be removed, email us at contact@monthlet.ai and include the address you signed up with.
The monthlet app and your notes
Your notes are plain HTML files stored locally on your Mac. They are never uploaded to our servers.
When you use the in-app chat with your own AI provider API key, requests go directly from your device to that provider (such as Anthropic, OpenAI, or Google) under that provider’s terms. We do not proxy, log, or store those requests.
Google account integrations (upcoming)
Future versions of monthlet may offer optional integrations with Google services (such as Calendar). If you enable one, access is granted by you through Google’s OAuth consent flow, the data is used only to provide the feature you enabled, and it is processed on your device, not stored on our servers.
monthlet’s use of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
Changes to this policy
If this policy changes, we will update this page and the date above. Material changes will be noted on this page.
Contact
Questions or requests: contact@monthlet.ai