
Cello
7.9#2 in referral marketing softwareFrom $65 a monthFree planAndroidiOSWebAPI
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Cello suits teams that want to run partner referral campaigns with referral links or codes and payout support through PayPal or Venmo. The Free, Plus, and Pro plans may fit programs sized around their campaign and transacting-partner limits; enterprise plans address larger referral or partner needs.
It suits email list owners who want referral links, milestone rewards, and automated referral messages. It is also relevant to users of the listed email providers.