AWS Shield vs Tink: What are the differences?
AWS Shield: Managed DDoS Protection. AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards web applications running on AWS. AWS Shield provides always-on detection and automatic inline mitigations that minimize application downtime and latency, so there is no need to engage AWS Support to benefit from DDoS protection; Tink: A multi-language, cross-platform, open source library that provides cryptographic APIs (By Google). It is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.
AWS Shield and Tink can be categorized as "Security" tools.