Prepaid packages & credits
NextSessio
Packages are the default product: clients buy credits upfront, book without paying again, and you verify each visit with a 6-digit code—including walk-ins.
Booksy
Booksy supports appointments and payments, but prepaid multi-visit packs and credit-based rebooking are not the core workflow most independent barbers optimize for.
Bottom line: If packs drive retention, optimize for credits—not just calendar slots.