kaizen | Adaptive Run Training

5K, 10K & Marathon Plans

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

kaizen helps you understand what your training is building toward, because training plans break when life gets in the way Connect Strava or Garmin and kaizen turns your recent training and race history into clear guidance for the week ahead. See what your current training suggests is possible, train toward your goal with more confidence, and build consistency without losing sight of real life. Train for a 5K, 10K, half marathon or marathon — or train at a rate of improvement that helps you keep getting better over time. Whether you’re building toward race day or focusing on steady long-term progress, kaizen helps you train with more context, more clarity and less noise. CHOOSE HOW YOU WANT TO TRAIN The first training systems in kaizen give you more structure and guidance without the brittleness of a rigid plan. Start with: - Blank Canvas for full flexibility - Even Spread for a calm, repeatable weekly rhythm - 1 Long, 1 Hard for a week anchored by one longer run and one harder effort You choose the structure that fits you. kaizen adapts the work underneath based on your current fitness, goal and timeline. WHAT YOU GET - Race predictions for 5K, 10K, half marathon and marathon - Guidance shaped by your recent training and race history - Flexible weekly training that adapts to the running you do - More structure without being locked into a plan that breaks when life gets in the way - Clearer confidence about the shape you are in before race day - A way to train not just for one race, but for steady long-term improvement BUILT AROUND CONSISTENCY kaizen is built around a simple idea: improvement comes from enough good work, repeated consistently, for long enough. The point is not to blindly obey numbers or feel like you’ve failed the week because life got in the way. The point is to understand the bigger picture, stay consistent, and make better decisions over time. Some weeks will be smooth. Some will be messy. Missing a run or having a rough patch does not erase the work. kaizen helps you stay oriented, return well, and keep building. Because the best training is not the most ambitious plan on paper. It is the training you can actually absorb alongside work, family, stress, sleep, travel and everything else that affects running. DESIGNED FOR REAL LIFE Some runners want full freedom. Some want a steadier rhythm. Some want more weekly shape. kaizen is designed to support different ways of training while keeping the same adaptive logic underneath. The goal is not perfect compliance. The goal is durable progress. CONNECT VIA STRAVA OR GARMIN kaizen adapts based on the running you do, so it requires a data connection to update based on your actual training. It’s currently compatible with Strava and Garmin. You’ll need to connect your Strava or Garmin account for kaizen to analyse your activities and calculate your predictions and training guidance. kaizen does not process or store location or heart rate data. Read the terms and conditions here: https://runkaizen.com/terms Read the privacy policy here: https://runkaizen.com/privacy

  • 4.6
    out of 5
    19 Ratings

kaizen is always improving. Your suggested runs will now adapt according to the exact training that you did after every single run. We have also fixed bugs and improved the responsiveness of the app.

The developer, Run Kaizen LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Purchases
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Contact Info
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • RUN Kaizen LTD
Size
  • 51.5 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
  • Annual Subscription $89.99
  • Monthly Subscription $14.99
  • Annual Subscription $89.99
  • Monthly Subscription $14.99
  • Quarterly Subscription $34.99
  • Subscription $19.99
  • Subscription $12.99
  • Subscription $49.99
  • Quarterly Subscription $34.99
  • Subscription $24.99
Copyright
  • © 2026 Run Kaizen Ltd