https://www.aaronhampton.com/en/tags/pacesmith/Recent content in Pacesmith on Aaron HamptonHugoen-USTue, 07 Apr 2026 00:00:00 +0000https://www.aaronhampton.com/en/blog/pacesmith-is-live/Tue, 07 Apr 2026 00:00:00 +0000https://www.aaronhampton.com/en/blog/pacesmith-is-live/<p>Every Tuesday I ship something. This week it is Pacesmith, a VDOT running calculator for iOS.</p> <p>If you train with Jack Daniels&rsquo; running formula, you know what VDOT is. It is the number that ties your current fitness to five training zones, from easy runs to all-out repetitions. The problem is that the official VDOT app limits free users to three calculations a day, and the alternatives are either $12.99 a month or last updated in 2015. Pacesmith does the same job for $1.99, once, with no account and no network required.</p>