You're context-switching between investors, customers, and team — while keeping 100+ relationships from going cold and decisions from becoming bottlenecks. Cossi runs your intelligence layer on your phone, not someone else's server.
Free to start. Pro features from $9.99/mo.
You know which investor you haven't spoken to in six weeks. You know the decision that's been open since last month. You know the customer relationship that's cooling. But you're carrying all of it in your head — or in a tool that stores your investor communications, your team dynamics, and your strategic thinking on servers you don't control.
Cossi gives you a private intelligence layer that surfaces what matters, drafts what's needed, and keeps everything encrypted on your device.
Not another productivity app. A private intelligence layer that runs at CEO scale — on your phone, with no cloud dependency.
Cossi tracks every open decision and flags the ones that have stalled. Not a task manager — a decision register. The thing founders actually lose track of.
The best founders I know carry enormous context. Cossi is the first tool built to carry it with them — privately.
— Built for founders who operate at the highest information density
Your investor relationships, your cap table context, your hiring pipeline, your competitive intelligence — this is information that should never be stored on a cloud provider's servers. Cossi runs the AI on your device. The vault is AES-256-GCM encrypted with a key derived from your 24-word seed phrase — no key escrow, no recovery path that requires trusting us.
Cossi runs your first morning brief tomorrow. Free. No subscription required for the core app. Your investor data stays on your phone.
