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Anyone has a mobile app recommendation for knots? EDIT(ABOK -> Grog) has one but it's outdated and not available on my device.

I like Grog animated knots:

oh. I said "ABOK" when I meant "Grog". It looks great but it's outdated.

How can a knot be outdated? Seems odd in a thread about 80 year old book.

Clearly we have higher performing knots which leverage modern material benefits for less slippage, total movements/tying time and complexity etc.!

The application and material of ropes has changed over time, specifically ABOK was published just before the advent of Nylon ropes.

The other decent one (Knot Guide) has now put their knots behind a subscription.