Dear ,

We are thrilled to be mentioned in legendary Tim Ferriss' blog and also recommend watching his guest (the no less legendary Rhonda Patrick, Ph.D.) on their podcast, talking about VO2, HR, and endurance training.

Thanks for being with us!

We are also working on a release of an improved next version of the app, which will include UI/cosmetic improvements and also long-awaited and often requested - working in background mode (for those of you using Norwegian 4x4 on the run/walk/rowing) and are following audio-cues.

Love you,

❤️ Jack from Norwegian 4️⃣x4️⃣ 💪