about

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...

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,...

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...

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...

Fitbit Compatibility

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

Samsung Galaxy watch compatibility

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

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...

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,...

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...

Do the apps sync with Google Fit?

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

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...

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...

Apple Watch Support is Locked

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

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...

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...

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...

Where can I find the MyFitnessPal login on C25K Trainer app?

The MyFitnessPal login is on the same screen as the Facebook/Twitter login in our C25K app, which is at the...

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...

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...

I just graduated from the 10k app, and now want to start training with half/full marathon app! What week should I start from?

The Marathon Trainer’s program is significantly different from the C25K/10K Trainer, so there is no direct bridge. Having said that, many...

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),...

Family Sharing

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

Sync Fitbit

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

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...
Download C25K for free!