RETR's tech stack
What does RETR use?
RETR (retr.app) uses at least 31 tools we can see from public records, including Microsoft Azure for hosting, HubSpot for sales, Plausible for analytics and Stripe for payments. RETR has used HubSpot since Jun 2023, going by certificate records. Last checked .
- Company page
- Tools found
- 31
- Categories
- 16
- Oldest proven tool
- Jun 2023
- Last checked
- Nov 2026
RETR's stack, layer by layer
Of 31 tools, 18 came from website code, 6 from DNS verification records, 3 from email records and 4 from other records. 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
4 tools, where the bytes are served from
Application
4 tools, what the product is built with
Data & Observability
6 tools, what they measure and store
Go-to-market
10 tools, how they find and keep customers
Website & CMS
Sales & CRM
Company Ops
7 tools, what the team runs on day to day
Email Delivery
Collaboration
Security & Compliance
What changed at RETR
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Companies like RETR also use
Tools common among companies with a similar stack that we haven't found at RETR.
Companies with a stack like RETR's
Ranked by shared tools, with rare tools counting more.
MobiloudInternet · 11–50 people11in common
GraphySoftware · 51–200 people13in common
Fireflies.ai Corp.fireflies.ai16in common
Agorapulse SASSoftware · 51–200 people17in common
Hypotenuse AIB2B · 11–50 people11in common
Dynamiq Technologies, Inc.Internet · 1–10 people16in common
WishpondInternet · 201–1,000 people11in common
Visualpingvisualping.io13in common
RETR tech stack FAQ
What tools does RETR use?
As of November 2026, runsonwhat has found 31 tools at RETR (retr.app) in public records. Edge & Hosting: Cloudflare, Microsoft Azure and Namecheap. Application: Google Fonts, Anthropic and OpenAI. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked November 9, 2026.
What cloud does RETR run on?
RETR uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure and code on retr.app. Microsoft Azure is used by 51,016 companies runsonwhat tracks.
What CRM does RETR use?
RETR uses HubSpot for its CRM, alongside Vector, according to runsonwhat (November 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and email records, and RETR has used it since at least June 2023. HubSpot is used by 98,101 companies runsonwhat tracks.
What email provider does RETR use?
RETR uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 737,883 companies runsonwhat tracks.
What payment provider does RETR use?
RETR uses Stripe for payments and billing, according to runsonwhat (November 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on retr.app. Stripe is used by 31,507 companies runsonwhat tracks.
What analytics tools does RETR use?
RETR uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and Plausible, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on retr.app. Google Analytics is used by 904,373 companies runsonwhat tracks.
How long has RETR used HubSpot?
RETR has used HubSpot since at least June 2023, going by the first public certificate of the retr.app subdomain that points at HubSpot. Other long-running tools at RETR include HubSpot CMS (since June 2023).
Does RETR use Google Fonts?
Yes. runsonwhat found Google Fonts at RETR through Google Fonts code on retr.app. Google Fonts is a Media & UI tool used by 825,874 companies runsonwhat tracks.
Does RETR use AI tools?
Yes. runsonwhat has found Anthropic and OpenAI at RETR; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so RETR may use more AI tools than these.
Which companies have a tech stack similar to RETR's?
The companies with the stacks most like RETR's are Mobiloud, Graphy, Fireflies.ai and Agorapulse, according to runsonwhat (November 2026). Each shares 11 to 17 tools with RETR, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what RETR uses?
runsonwhat reads public records only. Of the 31 tools at RETR, 18 were found through code on retr.app, 7 through DNS records, 3 through email records and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and retr.app 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.