10 Best Apps Like 21 Days Challenge for iPhone (2026)

Tung Bui Thanh

Whether you want more options like 21 Days Challenge or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

simply. nutrition tips by simply advisory LLC

that help you get healthy.

💪 Health & Fitness

5.0(17 ratings)

FreeIn-App Purchases

Get daily nutrition tips from certified nutritionists with a subscription to this app, and start your journey to a healthier lifestyle. With features like customizable notifications, saved tips, and a tip tracker, you can easily incorporate healthy habits into your daily life.

Top Alternatives to 21 Days Challenge

Fitness & Workout AI Log: Lolo by Mikhail Vanyashev

My Coach: Exercise Journal

Editor's Choice

💪 Health & Fitness

0.0(0 ratings)

Free

Fitness & Workout AI Log: Lolo screenshot 1

Fitness & Workout AI Log: Lolo screenshot 2

Fitness & Workout AI Log: Lolo screenshot 3

Murror AI by Murror

Build meaningful connections

Strong Contender

💪 Health & Fitness

5.0(4 ratings)

FreeIn-App Purchases

This AI-powered companion helps young individuals build deeper connections with themselves and others. It offers guided conversations, journaling, and insights to foster self-understanding and improve relationships.