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Fitbit Compatibility

No. We specifically stated it’s only available on Fitbit Ionic and Versa Smart Watches only.

Motivational Alarm

We currently don’t have custom alarms set up. However, if the app detects you haven’t been active for a couple...

I don’t see the app on my Apple Watch

Apple Watch integration is only available on the pro version. If you don’t see the app on your Apple Watch,...

Apple Watch Support is Locked

Apple Watch is available in the Zen Unlimited Pass subscription. Currently there is a 7 day free trial.

Sound not loud enough iPhone

The problem is that the sound of notifications when the phone is locked is handled by the OS of the...

Is there a community I can join that I can ask questions to?

YES! There is a wonderful community on our Facebook page that is very active and passionate. You can post your question there,...

How do I get sound alerts while using Apple Watch?

This issue appeared because you used your phone with your apple watch, and the problem is that you received the...

If I uninstall and reinstall, will I have to pay again?

No, you will not have to pay again. Once you purchase an app on either iTunes or Google Play, that...

Is there a recommended starting point or bridge from 10k to half/full marathon?

The half/full marathon training program and 10K training program are significantly different, so there is no direct bridge. But what...

How many times do you recommend to work out per week or why is there only 3 workouts a week in the app?

The program was specifically designed to work out only 3 times a week, with a day’s rest in between. This...

Samsung Phone and Watch – Standalone

Currently, right now the two apps are standalone (separate) apps on the Samsung phone and watch. We purposely made it...

Apple Watch Stand Alone

We recommend using at least Apple Watch series 3 which is the first Apple Watch to support stand-alone. Apple Watch...

Samsung Galaxy watch compatibility

The C25K app is only available for the newer Samsung Galaxy watches. We are still in talks with Samsung about...

What to do on rest period (push-up)

The rest period is the time that you should be recovering, to get ready for the next set. But you...

Can I use the app on Apple Watch without my phone?

Yes. We have just integrated stand-alone support. This is for the PRO version of our app only. If you upgrade inside the...

Do the apps sync with Google Fit?

Unfortunately at this time our apps do not sync with Google Fit.

App keeps crashing on my Huawei device

This is a Huawei OS specific issue, as their battery saving algorithm is very aggressive and our app cannot bypass...

Apple Watch Notification Voice cues

This issue appeared because you used your phone with your apple watch, and the problem is that you received the...

Family Sharing

Please check this link for help on family sharing https://support.apple.com/en-us/HT201088

Timer is slight off by several seconds with app and treadmill (or app and stopwatch, or any other timer)

The reason for the issue you’re describing is when the device screen is turned off (or put into sleep mode),...

Ok, I found the MyFitnessPal login, but after pressing “send”, nothing is showing up on my MFP profile.

Please allow some time for the results to be posted, as sometimes the MyFitnessPal servers could be slowed down due...

What is the C25K Starter Kit

The C25K Starter Kit is a bundle of free apps that are all part of the Zen Unlimited Pass. This...

Is it ok to repeat days?

It is perfectly normal to struggle with a workout, and completely fine to have to repeat that workout until you...

Sync Fitbit

Currently the c25k app on Fitbit is a standalone app, and cannot be synced with our separate mobile apps.

I have subscribed to the Zen Unlimited Pass. How do I access the features in other apps?

If you are subscribed to the Zen Unlimited Pass in one of our apps, you can download any other Zen...
Download C25K for free!