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Castle alternatives
3 tools to consider instead of Castle, shown against it.
| Castle | Arkose Labs | DataDome | HUMAN Security | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Castle | Arkose Labs | DataDome | HUMAN Security, Inc. | ||||||
| Pricing model | Usage-based | Quote only | Quote only | Quote only | ||||||
| Free tier | Yes | No | No | No | ||||||
| Deployment | Cloud | Cloud | Cloud | Cloud | ||||||
| Open source | No | No | No | No | ||||||
| Best for | Product and fraud teams who want a metered, self-serve API for login and account-abuse risk scoring. | Consumer platforms wanting challenge-based defense plus dedicated human tuning against evolving fraud rings. | E-commerce and travel sites needing real-time bot and fraud scoring across web, mobile, and API traffic. | Enterprises and ad-tech platforms needing both bot mitigation and advertising fraud filtering from one vendor. | ||||||
| Pricing | Published self-serve pricing: a free tier with a monthly usage credit, a Pro tier, and custom Enterprise, all metered per Risk/Filter and IP Intelligence API call.
Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget. | No public pricing; deployments are quoted per customer. Pricing has not been verified yet — see the vendor's site. | No public price list; quotes are based on monthly request volume and deployment channels, and DataDome offers a free trial. Pricing has not been verified yet — see the vendor's site. | No public pricing; deployments across BotGuard, MediaGuard, and related products are scoped and quoted per customer. Pricing has not been verified yet — see the vendor's site. | ||||||
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