SubCount ("we", "the tool") is a free, independent utility for looking up publicly available data from Substack's API. By using subcount.xyz, you agree to these terms.
What SubCount is
SubCount lets you look up public subscriber counts and stats for Substack newsletters. It retrieves only information that Substack itself makes publicly accessible — it cannot access private dashboards, bypass authentication, or retrieve data that newsletter authors have chosen to keep private.
SubCount is not affiliated with, endorsed by, or connected to Substack in any way.
Accuracy of data
Data shown on SubCount is sourced from Substack's public API at the time of your request. We don't cache or store results. We make no guarantees about the accuracy, completeness, or timeliness of any information displayed — subscriber counts may be rounded, delayed, or unavailable depending on what the newsletter author has chosen to make public.
Don't use SubCount figures for financial decisions, due diligence, or anything where precision actually matters.
Acceptable use
You may use SubCount for personal research, curiosity, competitive analysis, or general information. You may not use it to:
- Automate bulk lookups in a way that strains the service or Substack's API
- Harvest or aggregate data for spam, harassment, or unsolicited contact
- Resell or commercially redistribute the data without transformation or added value
No warranties
SubCount is provided as-is, with no warranty of any kind — express or implied. We may change, limit, or discontinue the service at any time without notice.
Third-party services
SubCount uses Vercel for hosting and contains affiliate links to Beehiiv. Your use of the site is also subject to their respective terms and policies.
Changes to these terms
We may update these terms occasionally. Continued use of the site after changes means you accept the revised terms. Nothing here is designed to be sneaky — if something material changes, we'll update the date at the top.
Contact
Questions? The best route is opening an issue on GitHub or reaching out via the site's social links.