Contact
Compound Snowball is built and run by one person, and that person reads every message that comes in.
Usually a reply within a couple of days. No support ticket system, no auto-responder, just an inbox one person actually reads.
What's useful to hear about
Bug reports
If a number looks wrong or a page breaks, include which calculator, your inputs, and your browser. That's usually enough to reproduce it.
Feature ideas
A calculator you wish existed, or a feature an existing one is missing. Every calculator on this site started as one of these emails.
General feedback
What's confusing, what's useful, what you'd change. Short and specific is more useful than polite.
Before you write
Is this financial advice, or can you review my situation?
No. Everything on this site is a general-purpose calculator, not personal advice, and I'm not a licensed financial advisor. For anything that actually matters to your finances, talk to one who knows your full situation. More on what this site does and doesn't do is on the about page.
Do you accept guest posts, sponsorships, or backlink requests?
Generally no. This is a small, independently run site and I'd rather keep the content written and verified by one person than open it up to paid placements. If you think you have a genuine exception, a short, specific email explaining why is far more likely to get a reply than a template pitch.
How is my data handled if I email you?
Like any normal email: it goes to a personal inbox, isn't shared with anyone, and isn't added to a mailing list. See the privacy policy for how the calculators themselves handle data, which is separate from email and simpler: nothing you type into a calculator ever leaves your browser.