Corollary: Everyday AI Agent

Corollary is a free everyday AI agent. Ask for a game and play it. Ask for a song and hear it. Ask for a book on anything and read it tonight. On an iPhone with Apple Intelligence and iOS 27, Apple's cloud AI answers, free. No account, no subscription. MAKE A GAME BY ASKING Start from forty games, from arcade hops to racers, board games and card games, or from a blank page. Say "give the snake a rainbow tail" and it builds it, runs it and fixes it. EVERY VERSION, KEPT Each change is a new version, and every one is kept. See what changed, and go back to any version with a tap. Games carry the ads: some changes and opens ask for a short one, and a small banner rides above the board. Never personalised. MUSIC IN A TAP Ask for an artist, a song or an album, and a music card appears. One tap plays it right here: whole songs with an Apple Music subscription, 30-second previews without. Tap an album cover and it opens as its own card. While it plays, a small player sits above Ask, with repeat for whole songs and an X to stop. PODCASTS, TOO Ask for a show and get its latest episodes. One tap plays a whole episode, and it picks up where you stopped. A BOOK ON ANYTHING Open Design, pick a research paper, a report, a feature, a field guide or a book, and name the topic. It reads the sources and writes it up with full chapters, pictures and every source at the back. Save it as a PDF. Then change it by asking: a new chapter, a subsection, another cover. What changed shows in green and red, word by word. On a cloud model it keeps working after you close the app, with progress on your Lock Screen. If it has to pause, Resume picks up where it stopped. EVERY ANSWER, A CARD Every answer comes with a card: the facts, a picture, a map, the news and where to go next. Films and songs open on their trailer or music video, and many films and shows open in Apple TV with a tap. FREE CLASSICS Thousands of old books, films and authors open onto free public-domain copies: read Frankenstein on Project Gutenberg, watch A Trip to the Moon, hear Mark Twain on LibriVox. APPLE'S CLOUD AI, FREE On an iPhone with Apple Intelligence and iOS 27, Corollary answers with Apple's cloud model, free within Apple's daily limit. Past it, the model on your phone carries on, and the title says which one is answering. Or download a model once, use one on your own computer, or bring your own key for Anthropic, OpenAI or Google. It asks before anything goes to a provider. EVERYDAY ERRANDS Tacos near the beach, with directions and a call button. The cheapest flight this week, every fare read and ranked. Running shoes from the stores' own sites, or snap a barcode. Menus, showtimes and hotels straight from the source, a shelf of recipes, the weather to the hour, and your calendar and reminders as cards. EVERY TOPIC CONNECTS Corollary carries its own map of the world's topics: Mount Everest opens onto the Himalayas, the Seven Summits and the eight-thousanders. It grows around what you explore, so yours is like no one else's. IT SHOWS ITS WORK Every answer names its sources. It can fill in a form for you, and it never presses send. If something can't finish, it tells you why in one line and offers Try again. LIGHTER ON THE PLANET Every answer made on your phone is one a datacentre didn't have to make. Eco-Savings counts what you kept out of one, in grams and in redwood-minutes. GOOD TO KNOW For iPhone with iOS 26 or later, in English. Apple's cloud AI needs iOS 27 and Apple Intelligence. Written answers need Apple Intelligence, a downloaded model, your own computer or your own key. Whole songs need an Apple Music subscription. Flights, stores, music, podcasts, pictures, videos and web pages need a connection. Answers can be wrong, so check anything that matters. Facts from Wikidata (CC0). Summaries from Wikipedia (CC BY-SA 4.0). Place lookups from OpenStreetMap contributors (ODbL). Made in SoCal.