Your collection stays on your device.
This first release is a collection tracker without accounts, email sign-in, public profiles, build uploads, comments, or messages. GraviList is an independent fan project.
What is saved
Collection nicknames, piece quantities, added-box counts, and save and backup times are stored in this browser’s local storage for this website. They are not sent to our collection database. Please use a nickname rather than a child’s real name. We do not ask for email addresses, passwords, birthdays, schools, or addresses.
Who can open a collection
Anyone using the same browser profile on this device can view or change these collections. Separate nicknames organize collections; they are not password-protected accounts. Friends using their own browsers start with their own collections. Sharing the website link does not share your inventory.
Keeping your collection
Changes save automatically on this browser. Clearing site data, private browsing, a device reset, or browser storage cleanup can erase them. There is no automatic cloud backup or cross-device sync, and we cannot recover deleted local data.
Use Save backup regularly and check that the file downloaded. Keep it somewhere safe with a parent. Restore backup imports the file as separate collections without replacing existing counts. Restore the newest backup when moving to another device, browser, or website address. The file contains your collection nicknames and quantities, so share it only with people you choose.
Removing your data
Manage this device lets you remove an individual collection. To erase all collections on this browser, clear this website’s data in browser settings. Delete any downloaded backup files separately. Removing a collection does not remove copies in backup files.
Website services and external links
Vercel hosts the website and processes technical information such as IP addresses and request details to deliver and protect it. We have not added advertising trackers, third-party analytics, or sign-in cookies. Product images are served with the website. Shopping and source links take you to other websites, whose own privacy practices apply.
Shopping for parents
The shopping area is for parents and adult collectors. Links marked “Paid link,” when available, can earn us a commission on qualifying purchases. Ordinary product and source links are not paid links. The shopping page explains whether any paid links are currently active.
Clicking a paid link may take you through an affiliate network before the retailer. Those services may process your IP address, browser information, and referral details, and may use cookies to attribute a purchase. We do not send your collection nickname, piece counts, or backup files with shopping links. We do not load affiliate tracking scripts or pixels in the tracker.
Shopping links and disclosures
Updated October 28, 2026. If we introduce accounts or community sharing later, we will explain the changes before those features open.