# Second Nature vs Vivun: who uses which

On usedby, 19 companies use Second Nature and 14 use Vivun. 1 company uses both, including Zoom. Counts include every proof level, job-post signals included; each company keeps its proof level on each side. Latest check 2026-10-19: 26 of 33 public lines checked.

## Side by side

|  | [Second Nature](https://www.usedby.ai/tools/secondnature.md) | [Vivun](https://www.usedby.ai/tools/vivun.md) |
|---|---|---|
| Public customers | 19 | 14 |
| Confirmed | 0 | 0 |
| Observed | 19 | 14 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers (every proof level) | IT Services & System Integration (7), Fintech & Payments (2), Insurance & InsurTech (2) | Data & Analytics (3), HR & Recruiting (2), Marketing Tech (2) |
| Category | Sales coaching & enablement | Sales coaching & enablement |
| Data processing terms | — | A data processing agreement is available. ([legal.vivun.com](https://legal.vivun.com/legal.html), checked 2026-10-08) |

## Companies that use both

Every proof level counts; the proof level of each side is shown, strongest proofs first. The first public proof is not an adoption date.

| Company | Proof, Second Nature | Proof, Vivun | First public proof, Vivun |
|---|---|---|---|
| [Zoom](https://www.usedby.ai/companies/zoom.md) | Observed | Observed | On or before October 2026 |

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