Best alternatives to Sierra (2026)
15 verified customer support alternatives to Sierra, machine-checked for live status, real pricing, and genuine free tiers.
| Tool | Free tier | API | Freshness | Key difference |
|---|---|---|---|---|
| GorgiasSubscription | ✓ | ✓ | 100 | Verified free tier |
| ForethoughtContact | — | ✓ | 100 | Generative AI for support. |
| CrispFreemium | — | ✓ | 100 | Freemium pricing |
| ChatbaseFreemium | ✓ | ✓ | 100 | Verified free tier |
| Intercom FinUsage-based | ✓ | ✓ | 100 | Verified free tier |
| Zendesk AIContact | — | ✓ | 100 | AI agents for service teams. |
| DecagonContact | — | ✓ | 100 | AI agents for support at scale. |
| LandbotFreemium | ✓ | ✓ | 100 | Verified free tier |
| ManyChatFreemium | ✓ | ✓ | 100 | Verified free tier |
| LorikeetContact | — | ✓ | 100 | AI support agent for complex CX. |
| PylonContact | ✓ | ✓ | 100 | Verified free tier |
| TarsSubscription | — | — | 100 | No public API |
| TidioFreemium | ✓ | ✓ | 100 | Verified free tier |
| AdaContact | — | ✓ | 100 | AI customer service automation. |
| SiteGPTFreemium | ✓ | — | 60 | Verified free tier |