Lentando – Private, offline-first habit and substance use tracker

Summary: Lentando is a free, open-source tracker for substance use, urges, and habits, supporting cannabis, alcohol, smoking, and custom substances. It prioritizes privacy with local-first data storage, offline functionality, and optional sync without requiring an account.

What it does

Lentando logs sessions, resisted urges, and healthy actions with one-tap input, tracks trends, and awards badges. It supports harm reduction approaches like tapering and abstinence.

Who it's for

Individuals seeking a private, judgment-free tool to monitor and reduce substance use or track habits.

Why it matters

It enables users to understand and manage their substance use patterns without compromising privacy or requiring online accounts.