At the ripe old age of 70, Highlights - that magazine staple of pediatricians' offices and often the first piece of mail a kid used to get - is moving into the digital age.

But with a brand as notable and recognizable as Highlights', the magazine didn't want to simply slap its articles and puzzles onto a mobile screen. So it took its time, said Kent S. Johnson, chief executive of the Highlights for Children Inc., which prints the beloved magazine with the tagline "Fun with a Purpose." It also produces three other publications and runs several clubs for kids.

Like many magazines, Highlights...