Sezzle Premium vs Sezzle Anywhere: what each tier adds
Sezzle Premium vs Sezzle Anywhere, from Sezzle's own pages: where each lets you pay later, which Service Fees go, billing rules; no price on pages read.
Comparison
Card-linked instalment plans, assessed against pay-in-four
Issuers now sell instalments on the card you already hold. Assessed on mechanics: a card-linked plan carves an existing credit line rather than opening a new one, and that single fact decides most of the comparison.
Pay-in-30 and pay-monthly, assessed against pay-in-four
The category's other two shapes: defer everything for a month, or spread it over many. Assessed on how differently they behave when something goes wrong.