runsonwhat

Simplex's tech stack

What does Simplex use?

Simplex (simplex.sh) uses at least 14 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, PostHog for analytics and PropelAuth for sign-in. Last checked .

“AI agents to enroll providers with payors”

Industry
Engineering, Product and Design
Size
1–10 employees
Based in
San Francisco, United States
Founded
2024
LinkedIn
Company page
Re-check liveVisit simplex.sh
Tools found
14
Categories
9
Layers
5 of 5
Last checked
Oct 2026

Simplex's stack, layer by layer

Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.

Edge & Hosting

1 tool, where the bytes are served from

Hosting & Cloud

Application

5 tools, what the product is built with

Frontend

Auth & Identity

AI

Data & Observability

1 tool, what they measure and store

Analytics

Go-to-market

1 tool, how they find and keep customers

Marketing

Company Ops

6 tools, what the team runs on day to day

Workspace

People & HR

Security & Compliance

Companies like Simplex also use

Tools common among companies with a similar stack that we haven't found at Simplex.

Companies with a stack like Simplex's

Ranked by shared tools, with rare tools counting more.

More Engineering, Product and Design companies

Other Engineering, Product and Design companies we've checked.

Simplex tech stack FAQ

What tools does Simplex use?

We've found 14 tools at Simplex (simplex.sh). Edge & Hosting: Vercel. Application: Tailwind CSS, Next.js and PropelAuth. Data & Observability: PostHog. Company Ops: Google Workspace, Let's Encrypt and Sectigo. Last checked October 2, 2026.

What cloud does Simplex run on?

Simplex uses Vercel for hosting. We found Vercel through custom domain and DNS records.

What email provider does Simplex use?

Simplex uses Google Workspace for email and documents. We found Google Workspace through email records.

What analytics tools does Simplex use?

Simplex uses PostHog for analytics. We found PostHog through website code.

What does Simplex use for hiring and HR?

Simplex uses Rippling for hiring and HR. We found Rippling through DNS verification records.

Does Simplex use Google Workspace?

Yes. We found Google Workspace at Simplex through email records. Google Workspace is used by 381,657 companies we track.

How does runsonwhat know what Simplex uses?

We read public traces only: Simplex's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website monthly.

We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.