Loop is one of the most popular free habit tracking apps, with its Android app clocking millions of downloads.
Loop is different from other apps in that it is open source. Its Github repository is available for anyone to fork and modify to their satisfaction, thereby allowing people with technical chops to make the app their own.
But Loop works great out of the box. It's got an extremely simple habit tracking interface where you can view all your habits at a glance, see how you performed in the last few days, and easily mark a habit as done, missed or skipped using taps and long-press actions.
The app also has cool analytics that lets you visualize your progress over time. What's especially great is the calendar view, which shows you at a glance which days of the month you performed or missed your habit.
All the data in the app can be easily exported as a CSV or a SQLite database file. You own your data completely.
Productive is a habit tracker with extensive functionality to track habits, view your weekly or monthly progress, and keep an eye on your streak for various habits.
What's great about Productive is that the app has curated a set of great habits around morning routine, sleeping better, getting stuff done etc. which makes it easy for someone new to setting habits to get started.
Another really great feature is Siri shortcuts in the iOS app, allowing you to check off habits using just your voice. The same feature isn't available for Google Assistant.
Loop for Android scores an excellent 4.6 rating. See latest reviews.
Must read: A short review of Loop Habit Tracker on steemit.
Loop is a completely free app. It is also available as an open-source repository on Github.
Productive is available as a free app and is supported by in-app purchases. You can upgrade for $3.99 or get a 1 year subscription for $23.99.
Loop is available for Android.
This app is not available for iOS, Web, MacOS or Windows desktop PCs.