There’s no account system here at all. Drop a products.json file (or use the store-URL option on the homepage) and the export runs immediately in your browser - nothing to register, verify or log into first.
Paying for more than 100 products per export doesn’t require an account either: subscribing generates a license key, and that key is what unlocks unlimited exports - not a username and password. You can even use the free tier indefinitely without ever entering an email address.
This also means there’s nothing to reset if you lose access to an old email - a license key is self-contained and can be re-entered on any device running the tool.
That holds on both tiers: activating a license only checks a key against the payment provider in a single request, with no ongoing session to stay logged into and no password to forget. Switch computers and there’s nothing to migrate except the key itself, which you can re-enter anywhere the tool runs - this website or the extension.