Best 21 Days alternatives: apps like 21 Days - Habit Tracker

75 Days Challenge: Better

Soft Habit Streak Tracker

Free

This app helps you build lasting habits by tracking your progress on custom challenges. Set flexible durations, log daily progress with photos and notes, and monitor weight trends. Stay motivated with home screen widgets to maintain your streaks.

HabitMinder • Habit Tracker

Daily Reminders & Routines

Free

This app helps you build positive habits and stay accountable with tools like reminders and tracking features. It offers over 50 pre-defined healthy habits to get you started, covering areas like exercise, hydration, and mindfulness.

5 Minute Journal・Daily Diary

Gratitude・Journal・Mood Tracker

Free

This app guides users through a daily gratitude journaling practice using principles of positive psychology. It helps cultivate a more positive outlook by focusing on what's good, with features like guided prompts, reminders, and secure entry protection. The app aims to improve overall well-being and mental health through consistent practice.

Fastic Weight Loss & Fasting

Protein, Tracker, Nutrition

Free

This app guides users through personalized intermittent fasting and nutrition plans to achieve sustainable weight loss. It offers features like a food scanner, progress tracking, and a community for support, helping users burn fat and improve overall health.

Fabulous: Daily Habit Tracker

Morning Routines & ADHD Help

Free

Build healthy habits and routines to improve your life and mental well-being. This app offers daily coaching, journaling, and community support to help you achieve your goals.

Intermittent Fasting Tracker:

Simple 16:8 Fast Timer

Free

This app offers a straightforward and private way to track intermittent fasting. It supports iPhone and Apple Watch, providing essential features like widgets, notifications, and progress charts without any advertisements. Ideal for both beginners and experienced fasters, it focuses on a simple user interface to support health and wellness goals.

Lively - Period Tracker, Cycle

Ovulation & Pregnancy Calendar

Free

This app helps you understand and align with your body's natural cycle. It provides personalized daily tips for nutrition, exercise, and self-care based on your menstrual phase. It also supports pregnancy and postpartum journeys, and offers a unique partner syncing feature.