About C25K
C25K (Couch to 5K) is a mobile fitness app designed for beginner runners. The program guides users from being sedentary to running a 5K distance in 8 weeks. It is available on iOS, Android, Samsung Galaxy Watches, and Fitbit devices.
C25K, from Zen Labs Fitness, is a popular mobile application designed to help beginners start running. The app provides a structured 8-week training program that gradually builds stamina, guiding users from a sedentary lifestyle to being able to run a 5K. It features audio cues for walk/run intervals, making it easy to follow without constantly checking a screen. The app is available for both iOS and Android devices and also integrates with wearables like Samsung Galaxy Watches and Fitbit. While the app itself is the core product, Zen Labs Fitness also fosters a community for user motivation and support. The product is a mobile app and does not have published pricing tiers, a free trial, or traditional SaaS deployment models.
Pros & Cons
- Structured 8-week program is ideal for absolute beginners.
- Millions of users and numerous success stories provide social proof.
- Available on major mobile platforms (iOS, Android) and popular wearables (Samsung, Fitbit).
- Focuses on a single, achievable goal (running a 5K).
- Primarily focused on beginners; may not be suitable for experienced runners.
- The website does not provide detailed feature lists or pricing information.
Features
Key features
Guides beginners from couch to 5K distance running.
Available as an app on the Apple App Store and Google Play Store.
Works with Samsung Galaxy Watches, Fitbit Ionic, and Fitbit Versa.
Users can join a community for motivation and tips.
Additional features
Tracks completed training sessions and milestones, giving users measurable feedback that reinforces motivation and highlights continuous improvement over the entire program.
Delivers structured beginner workouts that gradually increase running intervals while improving cardiovascular endurance, confidence, and overall fitness without overwhelming inexperienced runners during their training journey.
Combines alternating walking and running periods to help users safely build stamina while reducing physical strain and lowering injury risks during early fitness development.
Provides organized daily workout sessions that encourage routine exercise habits, helping users remain consistent and steadily progress toward completing a full 5K run.
Available through Android and iOS devices, allowing users to complete guided workouts wherever they choose without requiring specialized fitness equipment.
Pricing
Countries & Languages
Interface languages
Billing currencies
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About C25K
C25K (Couch to 5K) is a mobile fitness app designed for beginner runners. The program guides users from being sedentary to running a 5K distance in 8 weeks. It is available on iOS, Android, Samsung Galaxy Watches, and Fitbit devices.
C25K Details
C25K's In-App Market Place
Does C25K have an in-app market place?
Yes
How many Mini-Apps in the marketplace?
0
Mini Apps
Pricing Options
Accepted Payment Currencies
USD
Pros & Cons
- Structured 8-week program is ideal for absolute beginners.
- Millions of users and numerous success stories provide social proof.
- Available on major mobile platforms (iOS, Android) and popular wearables (Samsung, Fitbit).
- Focuses on a single, achievable goal (running a 5K).
- Primarily focused on beginners; may not be suitable for experienced runners.
- The website does not provide detailed feature lists or pricing information.
C25K's Support Options
Email Address
contactus@zenlabsfitness.comCommunity Forums
http://forums.zenlabsfitness.com/C25K's Alternatives
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