Nanohabit
Apple Watch Apps

Simple, private, and fast.

Nanohabit builds focused Apple Watch apps that respect your time and your data. WorkTap helps you complete your work hours without complexity. WatcH2O helps you track daily water intake. BioBattery shows your social energy level.

Apps

WorkTap
Productivity

WorkTap

Complete your work hours without the complexity. A high-fidelity timer designed to help you track your shift with a single tap.

Why I Built WorkTap

I noticed that most work-tracking apps were designed for project managers, not for the person doing the work. They ask for project codes, client names, and task descriptions.

Just Log the Hours

I built WorkTap because I wanted a tool that answered one simple question: "How much of my shift is left?"

It’s not about optimizing every second or categorizing tasks. It's about getting through your work hours and knowing exactly when you are done. No friction, no complexity—just a button and a progress ring.

Built for the Wrist

The Apple Watch is the perfect place for this. You shouldn't have to pull out a phone to log a break. By using haptic feedback and glanceable complications, WorkTap stays out of your way until you need it.

Privacy & Simplicity

Like all Nanohabit apps, WorkTap is private. Your hours are your business. There are no servers, no tracking, and no cloud sync. Everything is stored locally on your device.

WatcH2O
Health & Fitness

WatcH2O

Fast, simple water intake tracking for Apple Watch. Optional HealthKit write for water data. No external servers, no analytics.

Why I Built WatcH2O

Staying hydrated sounds simple, but building a consistent water habit is surprisingly difficult. I tried many water-tracking apps, but they were often too complex or too dependent on the iPhone.

Simple by Design

WatcH2O was created to be a minimal tool that does one thing extremely well: fast, one-tap water logging directly on your Apple Watch.

BioBattery
Health & Fitness

BioBattery

BioBattery shows your current energy level so you can decide whether you feel ready for social plans or need time to recharge.

Why I Built BioBattery

We track everything today, yet none of the apps answer one simple question: "Do I actually have the energy for social plans today?"

I built BioBattery as a tiny, lightweight energy indicator that trusts your intuition rather than just algorithms.

Privacy Policy

Last updated: March 2026

This privacy policy applies to WorkTap, WatcH2O, and BioBattery. None of these apps collect, store, or transmit personal data to external servers.

Work Data (WorkTap)

WorkTap stores your sessions locally. No data is sent to analytics or third parties.

Health Data (WatcH2O only)

If enabled, WatcH20 writes water intake to Apple Health. Data stays on your device only.

Contact

For support or questions: https://nanohabit.github.io