iPhone Screenshots


Keystone is an all-purpose activity and mood tracker with one goal: to help you find the activities that matter most to you. Track anything - habits, work sessions, moods - and Keystone will let you know what affects you the most. Keystone is powered by the data that represents your life.

Create as many custom activities as you'd like, set reminders to help keep you on track, and collect your data. You can track anything, from whether you completed a habit/activity to how long you spent doing it. Once you've input data for an activity, Keystone will ask you how you feel, which will help the app find correlations between your mood and that activity.

As you collect data, Keystone will display it visually and routinely analyze your activities to find which of them affect your mood the most. As you identify those activities - keystone activities - you can begin to focus on forming healthy habits that matter most to you.

Keystone currently supports a handful of Apple HealthKit integrations. As you go about your day, Keystone can pull data from HealthKit to fine-tune your keystone activities.

Everything Keystone has to offer is 100% free. Collect your data, find what matters most, and build a better life.

What’s New

Version 1.02

* Fixed a bug that was causing the app to crash when inputting mood.


David Figueroa
9 MB
Health & Fitness
Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© David A. Figueroa


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.