What is LogZero?

LogZero is a privacy focused tracker app for mood, meds, food, exercise, medication, weight, todos, meditation and more.

100% on-device, no network calls, no telemetry, no ads, no data sharing, no data sales. 100% built with security and privacy baked into it's DNA - and built by an expert security architect.

Free to use forever, with additional features behind a fairly priced and transparent pro membership - with optional one-purchase lifetime membership for those who reject subscriptions.

Why use LogZero?

I'm Andrew Hoffman, the sole developer and maintainer of LogZero. I've built a great career securing major software systems used around the world and writing books like O'Reilly's Web Application Security book series.

The more time I spent working in software, the more I came to realize the user has increasingly become the product rather than the customer. I was unhappy with the bloated, ad-ridden tracker app industry that sells your data out from underneath you even as a paying customer (yes, many of the largest tracker apps do this) - and fails to secure your sensitive private data appropriately.

My hope is that LogZero helps other people to optimize their life and draw insights from their activities in ways they couldn't prior. Furthermore, my aim is for LogZero to do this in a way that respects the user, establishes trust by avoiding dark patterns, is fairly priced with no hidden fees or behind-the-scenes data sales - and ultimately improves it's user's lives, even if just little by little.