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Simulithic launch: what they're building and where to launch next

FoxPlug writes launch posts from what a startup ships and matches it to the launch communities that fit it. This page shows what Simulithic is building and where it could launch next; if it is your startup, start free below.

What they're building

Simulate how any product change will perform before shipping.

Batch
Y Combinator Fall 2026
Industry
B2B
Team size
2
Based
San Francisco, CA, USA

Founders

simulithic.com ↗

See their funding details ↗

Simulithic on the record

What they shipped

  • From its YC profile: We build simulations of your real users, grounded in your session data, so you can predict how any product change will perform before you ship it. (source)
  • Its own site describes it as: "Turn your product data into agents that behave like your real users. Run any change against them for predicted lift in minutes, not six weeks." (source)
  • Homepage headline: "Catch what breaks before your users do." (source)
  • Homepage description: "Simulithic runs a swarm of simulated users through your production product, continuously, on the environments your real users are on. When something breaks, we reproduce it and tell you before your users have to." (source)

Who is behind it

  • Ryan Ning, Founder/CEO: Founder at Simulithic (YC F26). Previously SWE @ Uber, Shopify, and AI research @ University of Toronto. (source)
  • Satyam Singh, Founder/CTO: Founder at Simulithic (YC F26). Previously Software Engineer at Ramp and Bree (YC S21). (source)

Timeline

  1. 2026: founded, per its YC profile. (source)

Other B2B software launches on FoxPlug

  • OpenProse: An open-source operating system for reliable long-running agents
  • OpenRelay: Distributed, hardware-agnostic AI inference
  • OpenTag: Model Agnostic Claude Tag

Where else to launch Simulithic

  • Product Hunt ↗
    Self-promotion allowedFree
  • Indie Hackers Forum ↗
    Self-promotion allowed
    Audience: IndieHackers; bootstrapped solo founders sharing revenue and behind-the-scenes
  • Hacker News (Show HN) ↗
    Self-promotion allowed, within the community's rules
    Audience: Hacker News readers; engineers, technical founders, infra-curious people
  • Demand Curve ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • No Code Founders ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • OnlineGeniuses ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • Product Makers ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • ProductLed ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group

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