5 verified head-to-head audits · Interactive cost calculators

Open-source vs SaaS comparisons

Side-by-side audits of commercial license traps, self-hosted RAM footprints, and real seat-cost math before you commit.

SchedulingSolo, Teams & <45 SSO: Cal.com

Cal.com vs Calendly

Cal.com Cloud costs less across solo ($0 unlimited) and standard Teams ($12 vs $16/seat), and beats Calendly’s ~$15k/yr Enterprise SSO floor up to 44 seats — just do not count on MIT cal.diy for team self-hosting.

$0 solo · $12 vs $16 Teams · $15k Calendly SSO floorCompare

Workflow automationMIT & Team cost: Activepieces

n8n vs Activepieces

n8n wins for deep technical self-hosted internal pipelines; Activepieces wins on true MIT core licensing and $200/mo flat 25-user Team SSO.

SUL (€667/mo Biz) vs MIT ($200/mo 25-seat Team)Compare

Document sharing & data roomsValue & custom domain: Papermark Cloud

Papermark vs DocSend

Papermark Cloud undercuts DocSend sharply on custom domains and data rooms (€59–€99 vs $150–$180+); just note self-hosting Papermark still requires S3 and Tinybird.

€24–€99/mo vs DocSend $45–$180+/moCompare

Internal toolsStandard self-host: Appsmith CE

Appsmith vs Retool

Self-hosted Appsmith CE eliminates per-end-user SaaS taxes on an 8 GB RAM server — just watch Appsmith’s $2,500/mo SAML SSO cliff vs Retool’s $5–$15/user pricing.

$0 CE self-host (8 GB RAM) vs $5–$15/user RetoolCompare

Headless commerceLighter ops & Cloud: Medusa

Medusa vs Saleor

Medusa wins on lighter TypeScript ops and affordable $29–$299 Cloud hosting; Saleor wins if you must avoid any Enterprise RBAC/SSO license wall on self-hosting.

$29–$299 Cloud vs $1,599/mo + 0.8% SaleorCompare

How we audit head-to-head comparisons

Ordinary comparison posts call self-hosting “$0 free” while glossing over 8 GB RAM minimums (Appsmith), four external cloud dependencies (Papermark), or MIT repos that omit production team features (cal.diy). We verify those walls first.

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