Rain's tech stack
What does Rain use?
Rain (rainapp.com) uses at least 18 tools we can see from public records, including Google Workspace for email and documents, HubSpot for sales, Zendesk for customer support and Google Tag Manager for analytics. Last checked .
- Company page
- Tools found
- 18
- Categories
- 16
- Layers
- 5 of 5
- Last checked
- Oct 2026
Rain'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
3 tools, where the bytes are served from
Application
3 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Analytics
Flags & Experiments
Go-to-market
6 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
4 tools, what the team runs on day to day
Email Delivery
Workspace
Dev Tools
Security & Compliance
Companies like Rain also use
Tools common among companies with a similar stack that we haven't found at Rain.
Companies with a stack like Rain's
Ranked by shared tools, with rare tools counting more.
General CatalystInvestment Management · 51–200 people7in common
VennFinancial Services · 11–50 people10in common
Veritystream By HealthstreamHealthcare · 201–1,000 people8in common
RePro Streamreprostream.com8in common
MajorKey TechnologiesIT Services · 11–50 people7in common
EvolveYouHealth, Wellness and Fitness · 11–50 people9in common
Fluencyfluency.inc10in common
Logol AGIT Services · 11–50 people5in common
Rain tech stack FAQ
What tools does Rain use?
As of October 2026, runsonwhat has found 18 tools at Rain (rainapp.com) in public records. Edge & Hosting: Cloudflare, Amazon Route 53 and Amazon CloudFront. Application: jQuery and GSAP. Data & Observability: Google Tag Manager and Intellimize. Go-to-market: HubSpot, Zendesk and Webflow. Company Ops: Google Workspace, Cookiebot and SparkPost. Last checked October 24, 2026.
What CRM does Rain use?
Rain uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot. HubSpot is used by 94,704 companies runsonwhat tracks.
What email provider does Rain use?
Rain uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 405,308 companies runsonwhat tracks.
What does Rain use for customer support?
Rain uses Zendesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk. Zendesk is used by 42,219 companies runsonwhat tracks.
What analytics tools does Rain use?
Rain uses Google Tag Manager for analytics, according to runsonwhat (October 2026). runsonwhat found Google Tag Manager through Google Tag Manager code on rainapp.com. Google Tag Manager is used by 506,697 companies runsonwhat tracks.
What is Rain's website built with?
Rain uses Webflow for its website, according to runsonwhat (October 2026). runsonwhat found Webflow through a subdomain that points at Webflow and code on rainapp.com. Webflow is used by 35,142 companies runsonwhat tracks.
Does Rain use jQuery?
Yes. runsonwhat found jQuery at Rain through jQuery code on rainapp.com. jQuery is a Frontend tool used by 920,305 companies runsonwhat tracks.
Which companies have a tech stack similar to Rain's?
The companies with the stacks most like Rain's are General Catalyst, Venn, Veritystream By Healthstream and RePro Stream, according to runsonwhat (October 2026). Each shares 7 to 10 tools with Rain, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Rain uses?
runsonwhat reads public records only. Of the 18 tools at Rain, 7 were found through code on rainapp.com, 5 through email records, 3 through DNS records, 2 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and rainapp.com about 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.