Macworld We don’t have to stop learning our native language after grade school, nor should we. Sometimes, what we say isn’t half as important as the words we choose, which is where the Wordela Vocabulary Builder comes in. For less than $10, new users can have lifetime access to an app that lets you build your vocabulary in a way that really helps those new words stick. That’s thanks to Wordela’s learning algorithm, an AI teacher that lets you tailor your speech to the kind of conversations you want to have, whether in an academic or business setting. You’ll practice with flashcards and get con…