kaizen | Adaptive Run Training

kaizen | Adaptive Run Training

5K, 10K & Marathon Plans

28 ratings
87 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • October 28, 2022
  • September 10, 2026

Features

kaizen | Adaptive Run Training screenshot #1 for iPhone
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kaizen | Adaptive Run Training screenshot #5 for iPhone
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About

This app uses your running history to calculate your current fitness and set dynamic weekly distance targets. It offers personalized training guidance to help you achieve your running goals, whether for a specific race or general improvement. The app provides race predictions and flexible training plans that adapt to your schedule.

✓Data-driven training partner
✓Dynamic weekly distance targets
✓Personalized fitness calculations
✓Race predictions for various distances
✓Flexible training plans
✓Build consistency and improve fitness
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What users say

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What's New in kaizen | Adaptive Run Training

1.7.10

September 10, 2026

The latest kaizen version introduces heaps of bug fixes, performance improvements and minor new features. Enjoy!

5

Subscriptions & In-App Purchases

Quarterly Subscription

Access to the Kaizen dashboard for 3 months

$34.993 Months
14 Days trial
How to cancel kaizen | Adaptive Run Training subscription ⁉️

User reviews

Great motivator for marathon training

Kaizen has really helped me take my training to another level, by giving me ambitious but realistic weekly targets and seeing the changes in predicted race times. Life is busy with kids and work or there’s been pauses due to injuries, so this app is great for me because the training plan is flexible and adaptive. They were very responsive to my questions and the newest app version had the features I was asking about.
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Wow !!!!

Best running app i‘ve ever test

Response from developer

thanks!

Awfully inconsistent

This has to be one of the worst running apps I’ve ever used.

The imbedded mathematics in this thing just don’t make sense.
First: it’s just bad at simple math. Like, it’ll tell me I have 29k left to run but I have 1 14k run left on my weekly schedule.
Second: Everytime I open the app to look at my next run, it’s changed. I JUST opened it to see I was running 17.7k today and then when I went to look again, moments later, it now said I was supposed to run 12.3k.
Third: the pace calculator doesn’t work more than once at a time. If you check for a marathon pace and then try to go for another race distance, it won’t work. You have to close the app entirely.

I’m so happy I only paid for one month (which btw It kept telling me I hadn’t paid but it dinged me anyway so if I wouldn’t have known to just close the app and start again it would have charged me twice) because I will not be continuing with this.

Awful.
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Seriously buggy

Set up process crashed or looped me around like 4 times and required to close and reopen the app. Also seems super basic compared to stuff like Runalyze which is infinitely cheaper with tons more info. I can’t recommend but if it works for you I don’t judge.

Amazing platform and support

I’ve tried every app from Runna to VDot to manual programming. I have a crazy work schedule and kids and often find it time to do prescribed runs on a schedule. Kaizen is the most adaptive training app I’ve ever seen. Not only does it adapt to what you do, it easily adapts to your life.

When I had a question, Kaizen support reached back and answered my questions immediately.

10/10 app. Highly recommended for anyone who cares about running.
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User experience

🐞

Reported Bugs

25 issues

Setup process crashes or loops

Bug

App crashes frequently

Bug

Mileage calculations are incorrect

Bug

Planned mileage doesn't add up correctly

Bug

App doesn't get past the first step

Bug

Race prediction screen freezes

Bug

App doesn't work at all

Bug

Data imports incorrectly (mileage/pace)

Bug

Issues with unit conversion (miles/kilometers)

Bug

Subscription charge without reminder

Bug

Weekly targets change based on paces

Bug

Only shows one week ahead

Bug

Can't get past prediction screen

Bug

Stuck on loading stage

Bug

Imported Strava data is wonky

Bug

Race predictor only gives marathon distance prediction

Bug

Training days logged as previous day

Bug

Cannot control subscription

Bug

Inconsistent distance recommendations

Bug

Records disappear and reappear

Bug

Improve prediction section hides event selection

Bug

Week planning tool shows wrong paces

Bug

Marathon goal always defaults to 2:00:00

Bug

Can't consistently log in

Bug

App is immature and has bugs

Bug
✨

Requested Features

9 requests

Allow editing of runs

Feature

More personalization in training plans

Feature

Ability to start the training week on different days

Feature

Consider elevation in training calculations

Feature

Add more workout suggestions and paces

Feature

Predict times for distances other than marathon

Feature

FAQ and tutorials for better understanding

Feature

Ability to plan runs in decimals

Feature

Integration with other platforms beyond Strava

Feature

FAQ

What does Kaizen | Data-Driven Running do?

Kaizen analyzes your past running data, typically by connecting to your Strava account, to determine your current fitness level. Based on this, it sets dynamic weekly distance targets and provides race predictions for distances like 5k, 10k, half marathon, and marathon. The app aims to guide you towards achieving your running goals and improving your performance.

How does the app personalize my training?

The app creates hyper-personalized training by crunching your running history to calculate your actual current fitness. It then sets a dynamic weekly distance target that is sustainable for you, based on your average intensity and cross-training from previous weeks. This means your target adjusts based on how hard or easy you run, ensuring you can meet your training load.

What are the subscription costs for Kaizen?

The app offers subscription options. For users in the United Kingdom, pricing is £12.99 per month, £29.99 for 3 months, and £79.99 per year. Pricing may vary in other countries. A free trial is available to experience the benefits before committing to a subscription.

What devices or services is Kaizen compatible with?

Currently, Kaizen is compatible with Strava. You need to connect your Strava account for the app to process your activities, calculate predictions, and set targets. The app does not process or store your location or heart rate data.

Can I use this app if I'm not training for a race?

Yes, Kaizen is also designed for runners looking to improve their general fitness and consistency. The app can set plans to help you maintain your fitness or actively improve it if you're dedicated to getting faster. It focuses on building consistency step-by-step, fitting into your life.