Privacy
What is kept, and for how long.
Check Splitter
Nothing you type is stored. The receipt is worked out and sent back to your browser.
Group tabs
A tab stores its name, the names you add (first names or nicknames are enough), and each cost: what it was, the amount, who paid, who shared it and the date. The private link's key is stored only as a one-way hash. There is no account, email address or phone number.
A tab is deleted when someone with the link deletes it, or after 400 days without being opened. Database backups are kept on the server for 14 days and then deleted, so a deleted tab may survive in a backup for up to 14 days.
Cookies
Two cookies, both needed for the site to work: one holds the key of the tab open in this browser, one protects forms against forgery. No advertising, analytics or tracking cookies, and no fonts from other sites. The only outside service the pages load is the AdEngine banner on the public pages, described under Advertising; it also counts one page view per page as a daily total.
Advertising
Added 17 October 2026. The public pages (home, the empty Check Splitter, how the math works, pricing and about) show one banner ad from AdEngine (adengine.us), the small ad network run by WeldonPC, the company behind this site. For now the ads are for WeldonPC's own services. A group tab, a split receipt, this page and the terms never show an ad.
To show an ad, your browser loads a script from adengine.us, asks it for one banner, loads the banner image, and reports once that the page was viewed and once that the banner was shown. Like any website, adengine.us receives your network address, your browser type and the address of this site with those requests. Nothing from your tab or your receipt is sent with them.
- No cookies, no profile. AdEngine sets no cookies, gives you no ID and does not track you from site to site.
- How your network address is used. adengine.us looks up the approximate city for your address in a location database kept on its own server (nothing is sent to anyone else), so that ads meant for one area are shown only there. It also uses the address to count each ad view or click only once and to leave out robots and WeldonPC's own office traffic. The address is not stored with the counts; the temporary entries made from it expire within six hours and are cleared from the server within two days.
- What is kept. Daily totals only: page views for this site, and views and clicks for each ad. The adengine.us web server also keeps a standard access log (network address, time, address requested, referring site, browser) for security; it is deleted on a rolling schedule.
- Clicking an ad passes through adengine.us, which counts the click, and then opens the advertiser's site, which has its own privacy policy.
- Nothing about you is sold or shared.
Logs and limits
To enforce daily limits the site counts requests per day against a salted hash of your network address, never the address itself; those counts are deleted after 2 days. The web server keeps standard access logs for security.
Payments
When checkout opens, payment is handled by PayPal; this site will receive only a subscription reference and status, never card details.