Backer Update (July 2016)

Our team has been hard at work sending out your Pryme Vessyls and continually improving the experience. We wanted to send out a quick update to let you know where we are and what’s coming up as we move forward.

CEO: Alan Johnson

We’re ecstatic to welcome Alan Johnson as the new CEO of Mark One. He brings a wealth of experience to the team and a passion to help improve the health and lives of our audience. You can find more about this in our recent announcement introducing Alan.

Pryme Vessyl Deliveries

We’ve been sending out Pryme Vessyl opt-ins at a steady pace, and have no intentions of slowing down. We’ll continue to send out your Prymes as quickly as possible, and will ensure you receive your order if you claimed it during the opt-in survey. As mentioned in our previous update, we’re moving through North American iOS deliveries now while we set up international deliveries and finalize the Android experience.

For international users, we’re working with the regulatory bodies in all international regions to arrange deliveries to you. We’re progressing in this area, and will start sending these out as all the checks are completed. We know you’re excited to experience your Pryme, and we’re excited to have all of these orders delivered. We’ll keep you posted as we setup a seamless fulfillment process with all international regions.

Android App

Your Pryme experience relies on your Pryme Vessyl and the mobile app. For our Android users, we’re working to wrap up the development of the app, and will have it submitted to the Google Play store as soon as we can. Once it’s available to download, we’ll be sure to release another announcement and send your Pryme Vessyl so that you can get started as soon as possible. We appreciate the patience so far as we ensure an engaging and impactful experience for you.

Vessyl Progress

We know you’re excited to receive your Vessyl pre-order, and we’re still focused on bringing you a high quality experience. You can find our latest development timeline in this post, we are on track with these expectations and will share more tangible updates as these new features are implemented.

Accessories + Improvements

We’re always hard at work finding ways to improve the Pryme experience, and we have some new accessories and app improvements to help with this. The latest app version brings new and improved insights to the Pryme Vessyl app, more personalized to your daily activities and lifestyle. We’ve also introduced accessories to the website, including the premium carry bag. You can find it in the Pryme store now!

As always, you can get in touch with our team directly if you have any questions or comments at ‘’. We can’t wait to have everyone experience the benefits of their Pryme!

— The Mark One Team

Try Pryme for Free

Now you can experience your Pryme hydration before purchasing Pryme Vessyl. Just download the Pryme app and test it out for yourself.

Our mission is to empower you to make healthier choices, so even if you don’t have a Pryme Vessyl, it’s important that you are able to experience being at your best.

With full access to the Pryme app, you’ll be able to track your personal hydration needs throughout the day. You’ll also be able to connect your activity tracker (Fitbit, Apple Health, Jawbone, etc) for the most accurate Pryme measurement.

You can download the app here. Below is a preview of the updated app.



Pryme Integration Update (Fitbit)

Pryme Everywhere
We’re available to you whenever and wherever you need help, have any questions, or just want to connect with us. You can find Pryme Vessyl on Facebook, Twitter, Instagram, our blog, and now Snapchat. If you follow us on Snapchat (@myvessyl), you might even see some exclusive, behind-the-scenes updates. Don’t forget to share your experience with #prymevessyl.


As always, if you have any questions or comments, you can reach out to us at

Pryme Vessyl: Major Updates


We just released a major update to your Pryme Vessyl firmware. It is designed to significantly improve your daily experience with Pryme. The new firmware update will provide a much more reliable Bluetooth connection.

In your Pryme app, you should automatically receive the Firmware update request. If not, you can find the update in Settings > About Vessyl > Update Firmware.

New App Features
In addition to the new firmware, we have also released an app update (v1.3). In this update you’re now able to see your daily Pryme chart from any screen by rotating your iOS device to landscape mode. We’ve also added a safety notification that let’s you know if you are drinking too much, too quickly.


As always, if you have any questions or comments, you can reach out to us at

Pryme App Updates (v1.2.2)


Connection Trouble?

We’ve heard that some Pryme users are experiencing breaks in connection between your Pryme and your phone. We’ll be sending out a fix for this soon. This fix will also extend your battery life significantly. In the meanwhile, you can use these steps to reset and reestablish the connection between your devices.

If you have any questions, please reach out to us at