
KickoffLabs
7.5#1 in startup launch toolsFrom $1,319 a monthFree planWebAPI
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KickoffLabs suits businesses running referrals, giveaways, waitlists, or launch campaigns. The free plan is limited to 100 uniques per month, while paid plans have monthly lead limits.
Lukky suits individuals or organizers running comment-based giveaways on Instagram and Facebook. Pro is described for individuals who want customization and follow-up.