Privacy
Last updated 8 August 2026.
What is collected
No personal data. There is no signup, no login, no email field and no contact form, and nothing that could identify you is collected. The numbers you type into a calculator are never sent anywhere: every calculation runs inside your browser. Anonymous usage analytics (page views and a few product events) are covered in the "Analytics" section below.
What is stored in your browser
These entries are written to your browser's local storage. The first three stay on your device and are never sent to a server; the last is PostHog's anonymous analytics id.
| Key | What it holds | Why |
|---|---|---|
| aicc:prices:v3 | A copy of the public price list and the time it was fetched | So pages paint instantly instead of re-downloading the list on every visit |
| aicc:favs:v1 | The ids of any models you star | So your starred models are still there next time |
| aicc:theme | Your light or dark theme choice, if you use the switch | So the site keeps the theme you picked between visits |
| ph_…_posthog | PostHog's random anonymous id and settings (not a cookie, no personal data) | So repeat visits are not double-counted. Not written if you send Do Not Track |
None of them contains anything personal. To remove them, clear site data for this domain in your browser settings.
Cookies
None. The site sets no cookies of any kind, and the analytics below is cookieless too, so there is no cookie banner to dismiss.
Analytics
The site uses PostHog (US region) for privacy-first, cookieless analytics: page views and a few anonymous product events, such as which model you select, so I can tell which calculators are worth keeping. It honors your browser's Do Not Track setting, sets no cookies, builds no profile of anonymous visitors, and does no session recording, heatmaps, fingerprinting or advertising. The numbers you type are never sent. To opt out, turn on Do Not Track or use any ad-blocker; PostHog is a standard, widely-blocked domain.
Network requests
Beyond this site's own address, the only third party contacted is PostHog, described above. Specifically:
- The price list is fetched from this site's own address, not from a third-party API.
- Fonts are self-hosted. Nothing is requested from Google Fonts or any CDN.
- The token counter runs from a script bundled with the site, so pasted text never leaves your browser.
- Anonymous analytics events go to PostHog. There are no other embeds, iframes, trackers, ad networks or remote images.
Server logs
The site is served as static files by a hosting provider. Like any web server, that provider records standard request information such as IP address, user agent and the file requested, for delivery and abuse prevention. That is the hosting provider's infrastructure logging, subject to their policy. The site's own analytics (PostHog, above) is separate and anonymous, and is not used to build profiles of individuals.
Links to other sites
Some pages link out to GitHub, X and OpenRouter. Following a link takes you to a service with its own privacy policy, which this one does not cover. Nothing about you is passed along when you click.
Children
The site is a general-purpose calculator, is not directed at children, and collects no data from anyone regardless of age.
Changes
If this policy changes, the date at the top of this page changes with it. Since the site is published from a public repository, the full history of every change is visible there too.
Contact
Questions or corrections are best raised on GitHub, or by message on X.