A MushMate partner — a gear maker, a dog food brand, a race organiser, a club — can now offer MushMate to its mushers. It does not hand out hundreds of codes: it has a single one, a word like NONSTOP, printed on a card in its parcels, slipped into a newsletter or announced at the start of a race.

How it works for you

What others see — and what they never see

What it does not do

Three choices made against the obvious

A word, not a key. The usual way would have been to give each musher a unique code nobody can guess. But a unique code cannot be said out loud at the side of a trail, and that is how things travel among mushers. A word is remembered, repeated and typed in five seconds. In return, each code has a cap on activations and a deadline, chosen by the partner: that is what keeps it from paying for the whole internet if its word spreads.

The offered months come on top of your trial, they do not replace it. If you activate the code on day ten of your free trial, the six months start after the trial ends, not today. Activating early or late gives the same date: you do not have to work out the right moment.

A kennel that already subscribes is turned away. The code is there to introduce MushMate: the partner pays for it for new mushers, not to offer months to someone who already pays. The app tells you so plainly rather than taking it and changing nothing. On the other hand, a kennel that has switched to read-only can activate a code: that is where it helps most.