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Pro Simple yet effective
App layout is simple, one can easily customize it the way one wants.
Pro Free and open source
The app is open source and completely free to use, without any ads.
Pro Supports flexible schedules (certain number of days every week)
The flexible schedule feature allows you to set the habit for a certain number of days every week. For example, "Wake up at 7am" 5 days a week. This way you don't have to change the habits frequently, or risk losing your streak.
Con No cloud backup
There is no option to backup the data to the cloud, and no option to backup the data to your storage. You have to manually export the backup file every time.
Con No way to track numerical habits
There is currently no feature that allows you to track the number done of a certain habit (for example, "X glasses of water", "X pushups" etc.).