# Ada vs Decagon: who uses which

On usedby, 35 companies use Ada and 43 use Decagon. 1 company uses both, including Square. 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: 70 of 78 public lines checked.

## Side by side

|  | [Ada](https://www.usedby.ai/tools/ada.md) | [Decagon](https://www.usedby.ai/tools/decagon.md) |
|---|---|---|
| Public customers | 35 | 43 |
| Confirmed | 27 | 23 |
| Observed | 8 | 20 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Fintech & Payments (6), E-commerce & D2C (3), HR & Recruiting (3) | Fintech & Payments (4), DevTools & Infrastructure (3), HealthTech & Digital Health (3) |
| Category | Customer Service Automation | Customer Service Automation |
| Integrations | — | Salesforce, Intercom, Zendesk, Confluence, Contentful, Kustomer, Amazon Connect, RingCentral, Zendesk Sunshine ([decagon.ai](https://decagon.ai/product/integrations), checked 2026-10-04) |

## Companies named on both

Confirmed or observed on each side.

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

## Published results

Reviewed stories only; usedby did not measure the figures.

- Ada: [Dott](https://www.usedby.ai/case-studies/dott-ada.md): **77%**: “By 2026, that number had climbed to 77%” (published 2026-05-21)
- Ada: [Deezer](https://www.usedby.ai/case-studies/deezer-ada.md): **85%**: “Melodie is involved in about 85% of Deezer's support contacts” (published 2026-08-17)
- Decagon: [NG.CASH](https://www.usedby.ai/case-studies/ng-cash-decagon.md): **35 additional agents**: “Avoided the need to hire over 35 additional agents while managing growing inquiry volumes” (published 2026-07-28)
- Decagon: [Notion](https://www.usedby.ai/case-studies/notion-decagon.md): **34%**: “ticket resolution time improved up to 34%” (published 2026-07-28)

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