# GitHub copilot vs Replit: who uses which

On usedby, 40 companies use GitHub copilot and 31 use Replit. 1 company uses both, including Duolingo. 2 more companies appear on both with a job post (the weakest proof) on one side, counted apart. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-07: 60 of 71 public lines checked.

## Side by side

|  | [GitHub copilot](https://www.usedby.ai/tools/github-copilot.md) | [Replit](https://www.usedby.ai/tools/replit.md) |
|---|---|---|
| Public customers | 40 | 31 |
| Confirmed | 16 | 22 |
| Observed | 15 | 8 |
| Signals (job posts) | 9 | 1 |
| Top industries of customers | Fintech & Payments (4), Automotive Manufacturing (3), Cybersecurity (2) | DevTools & Infrastructure (3), HR & Recruiting (2), PropTech & Management (2) |
| Category | AI Code Assistants | AI Code Editors |
| Free trial | Free trial or free plan available. ([github.com](https://github.com/pricing), checked 2026-10-04) | — |
| Security | — | SOC 2 Type II ([replit.com](https://replit.com/security), checked 2026-10-07) |
| Data processing terms | — | A data processing agreement is available. ([replit.com](https://replit.com/dpa), checked 2026-10-07) |
| Integrations | — | Stripe, Slack, Plaid, Figma, Notion, Google Workspace, Microsoft 365, Airtable, Shopify, Salesforce, Atlassian (Jira), Razorpay ([replit.com](https://replit.com/integrations), checked 2026-10-07) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Duolingo](https://www.usedby.ai/companies/duolingo.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- GitHub copilot: [ASOS](https://www.usedby.ai/case-studies/asos-github-copilot.md): **90%**: “That peer-led rollout helped ASOS reach over 90% Copilot adoption across the engineering team within months.” (published 2026-07-30)
- GitHub copilot: [Cathay](https://www.usedby.ai/case-studies/cathay-github-copilot.md): **1,000 developers**: “Cathay rolled out GitHub Copilot to more than 1,000 developers in just one week” (published 2025-10-27)
- Replit: [Greenleaf](https://www.usedby.ai/case-studies/greenleaf-replit.md): **$100k+**: “$100k+ saved” (published 2024-09-01)
- Replit: [SaaStr](https://www.usedby.ai/case-studies/saastr-replit.md): **$200,000+**: “Eliminating the speaker review agency saved SaaStr $200,000+ annually” (published 2025-02-01)

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Source: https://www.usedby.ai/compare/github-copilot-vs-replit · How we check: https://www.usedby.ai/methodology