About LockIn30
LockIn30 is a 30-day challenge app for people who want to stick with one habit at a time. This site has the free challenge trackers, calculators and guides that go with it. You don't need the app to use them.
Who makes LockIn30
LockIn30 and this site are made by EHM Tech LLC, which builds mobile apps for iPhone and Android. Since 2019, over 500,000 people have used our apps. The "LockIn30 Editorial Team" named on our guides is EHM Tech.
Where our information comes from
Our guides and tools draw on peer-reviewed research on habit formation, motivation and behavior change. For health facts, such as how much exercise adults need, we use the U.S. Centers for Disease Control and Prevention (CDC).
Our trackers and guides are general information, not medical advice.
Your challenges and photos stay on your phone
LockIn30 has no accounts. Your challenges, daily logs and progress photos are stored on your phone and never sent to our servers. Timelapse videos are made on your phone too. The app does send anonymous usage stats and crash reports so we can fix bugs, and the privacy policy lists everything it collects.
Start a 30-day challenge in LockIn30
Free · No sign-up needed
Questions? Contact us.