Quad9

Exodus Privacy analyzes Android apps to detect embedded trackers and permissions that may compromise user privacy. It provides detailed reports helping users understand what data third-party libraries collect from their devices.

AliasVault is an open-source, end-to-end encrypted manager that combines password storage with alias and disposable email address generation. It lets users create unique identities per service to keep their real identity private, with optional self-hosting or cloud sync.

Tuta Drive is an end-to-end encrypted cloud storage solution from the makers of Tuta Mail. It lets users securely store and manage files with zero-knowledge encryption, ensuring full privacy.

Anonaddy

addy.io lets you create unlimited anonymous email aliases that forward to your real inbox, keeping your identity private. It supports GPG/OpenPGP encryption, custom domains, spam filtering, and can be self-hosted as open-source software.