# StackAI vs Zapier: who uses which

On usedby, 21 companies use StackAI and 53 use Zapier. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-08: 74 of 74 public lines checked.

## Side by side

|  | [StackAI](https://www.usedby.ai/tools/stackai.md) | [Zapier](https://www.usedby.ai/tools/zapier.md) |
|---|---|---|
| Public customers | 21 | 53 |
| Confirmed | 9 | 40 |
| Observed | 12 | 13 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Fintech & Payments (1), Hospitals & Care Providers (1), Schools & Universities (1) | DevTools & Infrastructure (6), HR & Recruiting (3), Marketing Tech (3) |
| Category | Automation & Integration | Automation & Integration |
| Your data | Not used to train models by default. ([stackai.com](https://www.stackai.com/privacy), checked 2026-10-08) | — |
| Data processing terms | A data processing agreement is available. ([stackai.com](https://www.stackai.com/privacy), checked 2026-10-08) | A data processing agreement is available. ([zapier.com](https://zapier.com/legal/data-processing-addendum), checked 2026-10-04) |
| Free trial | Free trial or free plan available. ([stackai.com](https://www.stackai.com/pricing), checked 2026-10-08) | Free trial or free plan available. ([zapier.com](https://zapier.com/pricing), checked 2026-10-04) |
| Integrations | 15Five, Abstract API, Ahrefs, Airops, Airtable, Algolia, Apollo, Appfolio, Asana, Ashby, Atlassian, AWS Athena ([stackai.com](https://www.stackai.com/integrations), checked 2026-10-08) | Google Sheets, Gmail, Slack, Google Calendar, Google Drive, HubSpot, Facebook Lead Ads, Google Forms, Notion, Mailchimp, Stripe, Salesforce ([zapier.com](https://zapier.com/apps), checked 2026-10-04) |
| Vendor status | Acquired by Asana, according to the vendor's homepage. ([stackai.com](https://www.stackai.com/), checked 2026-10-08) | — |
| Security | — | SOC 2 Type II ([zapier.com](https://zapier.com/security-compliance), checked 2026-10-04) |
| Pricing | — | Free: $0 /month; Professional: $19.99 /month; Team: $69 /month; Enterprise: contact sales ([zapier.com](https://zapier.com/pricing), checked 2026-10-04) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- StackAI: [Nova Talent](https://www.usedby.ai/case-studies/nova-talent-stackai.md): **60%**: “60% cost reduction in applicant evaluation” (captured by usedby 2026-10-08)
- StackAI: [Varos](https://www.usedby.ai/case-studies/varos-stackai.md): **800+ hours**: “800+ hours saved by eliminating repetitive manual research” (captured by usedby 2026-10-08)
- Zapier: [Vendavo](https://www.usedby.ai/case-studies/vendavo-zapier.md): **90%**: “Slashing Lead Response Time by 90%” (captured by usedby 2026-10-04)
- Zapier: [Vendasta](https://www.usedby.ai/case-studies/vendasta-zapier.md): **$1M**: “How Vendasta recovered $1M in revenue with automation and AI” (captured by usedby 2026-10-04)

---
Source: https://www.usedby.ai/compare/stackai-vs-zapier · How we check: https://www.usedby.ai/methodology