Apollo.io is a B2B sales intelligence platform with 210M+ contacts, email sequencing, and dialer tools — Free through Organization ($119/user/mo) with a credit-based data system.
GoHighLevel is an all-in-one CRM and marketing platform for agencies — Starter $97/mo, Unlimited $297/mo, SaaS Pro $497/mo — with usage-based SMS, email, and AI charges on top.
Datadog is a cloud observability platform with infrastructure monitoring from $15/host/mo, APM from $31/host/mo, and log management at $0.10/GB — modular pricing with compounding usage costs at scale.
Impact.com is an enterprise partnership management platform for affiliates, influencers, and B2B partners — Starter from ~$30/mo to Enterprise $50,000+/year, plus a 2.5% network fee on all commissions.
PartnerStack is a B2B SaaS partner platform (acquired by AppDirect 2025) managing affiliates, referrals, and resellers for 600+ software companies — custom pricing, no published rates, 116,000+ active partners.
n8n is an open-source workflow automation platform — free self-hosted Community Edition (unlimited executions) or cloud from €24/month — charging per execution rather than per step, making it far cheaper than Zapier for complex workflows.
Melio is a B2B bill payment platform — free Go plan with 5 ACH/month, paid plans $25–$80/month — allowing businesses to pay vendors by credit card even when vendors only accept checks or ACH.
Bunny.net is a global CDN and edge platform — Standard CDN from $0.01/GB, Volume CDN from $0.005/GB — with free internal storage-to-CDN transfer, video streaming, image optimization, and no contracts.
ElevenLabs is the leading AI voice synthesis platform — Free through Business ($990/mo), credit-based pricing (~1 credit/character), with Professional Voice Cloning from Creator ($22/mo) and conversational AI agents billed per minute.
HeyGen is the leading AI avatar video platform — Free (3 videos/mo), Creator $29/mo (200 credits), Pro $99/mo (2,000 credits), Business $149/mo — with a Premium Credit system governing advanced Avatar IV generation.
Publer is a social media scheduling platform with a unique per-account pricing model — Professional from $12/mo (3 accounts), Business from $21/mo — bootstrapped with AI scheduling, bulk posting, and analytics.
Instantly.ai is a cold email platform with unlimited sending inboxes on all plans — Growth $47/mo, Hypergrowth $97/mo, Light Speed $358/mo — with separate Leads and CRM subscriptions adding to total cost.