head to head/Customer Support

Plain vs Sim

Neck and neck on boosts. Profiles, pricing and deals below.

Plain

Support built for B2B and developer tools

community boosts

⚡ 0

pricing

Paid

what it is

Plain is a lean, API-first support platform designed for technical products: shared inbox, Slack-native workflows and customer context pulled from your own systems. Support tooling that feels like an engineering tool.

Sim

Build, Deploy & Manage AI Agents

community boosts

⚡ 0

pricing

Open source

what it is

Sim is the open-source AI workspace where teams build, deploy, and manage AI agents across 1,000+ integrations and every major LLM, visually or with code.