Separate the platform cut from payment processing. A 0% platform transaction fee means the course platform is not taking revenue share, but Stripe, PayPal or a native processor may still charge card fees.
Do the fee maths at your expected sales volume, not at launch. Teachable starts from $39/mo, but Starter has a 7.5% base transaction fee; Builder is the cleaner 0% base-fee step at $89/mo monthly or $69/mo annually.
Check the payment method before you choose Thinkific or Kajabi. Thinkific is strongest when using Thinkific Payments; third-party gateway fees can apply by plan. Kajabi says no revenue sharing, but third-party provider fees can apply unless you use Kajabi Payments or PayPal.
Do not treat the cheapest plan as the cheapest outcome. LearnWorlds starts from $29/mo, but its Starter plan has a $5 fee for each enrolment; higher plans remove transaction fees.
All-in-one platforms can justify a higher bill if they replace other tools. Kajabi starts from $89/mo and includes more of the creator business stack, but it is the wrong way to save money if you only need course hosting.
For teams, check whether you are buying commerce or training software. TalentLMS documentation says it has no transaction fees, but its fit is employee, partner or customer training rather than creator storefronts.