alphaXiv vs Upon A Time

alphaXiv offers a suite of AI features built on top of arXiv that help you keep up with and quickly understand the latest research. Trending Feed Discover the most relevant AI research, curated by our community of hundreds of thousands of readers each week. See papers tailored to your specific research interests with quick informative blurbs to help you decide which papers to delve deeper. Library Bookmark favorite papers, keep track of your research and organize your work. Paper is missing on alphaXiv? Upload it into library and gain access to the same assistant and AI Overviews as the publically available papers. AI Assistant Understand the latest AI research with AI. Ask questions like 'What are the latest breakthroughs in RL fine-tuning?' and get comprehensive literature reviews with trending papers automatically included. Paper Reader View papers with highlights, personal notes, and quick access to our AI assistant. Come back anytime to a paper to see what parts you marked as important, any notes that you left for yourself, and your conversations with our assistant. AI Visual Blogs Turn any complex paper into clear visual explanations. Generate beautiful research blogs with figures, equations, and key insights from the paper with just one click. Join hundreds of thousands of weekly readers on alphaXiv to transform your research output. Whether you’re a curious undergrad or an applied research scientist, reading papers won’t ever feel the same again.

Once upon a time, your child asked for a story about a dinosaur who lost his roar — and got a whole illustrated book about it, starring them. Then they read it aloud, all by themselves. Upon A Time creates personalized picture books that teach young children to read. Tell it who your little one is, pick a story idea together, and in about a minute the app writes, illustrates, and binds a brand-new book onto your family's shelf — written at exactly the level your child can decode. BUILT TO GROW READERS • Choose a reading level from first-words to confident reader; stories are written with the rhythm, repetition, and refrains that early-reader books use to make reading click • Phonics highlighting colors the sound patterns inside words • Tap any word to hear it spoken — curiosity becomes practice • Read to Me: a warm storyteller voice reads each page while every word lights up in turn, connecting sound to print THE WHOLE FAMILY CAN STAR • Build a cast: your child, siblings, grandparents — even the family dog • Add a photo or a short description so each character looks like themselves on every page, in every book • Stories weave in each character's name, age, and the things they love • Every book gets its own cover art and ends with a classic "The End" A REAL BOOK FEEL • Page-curl turns, two-page spreads in landscape, illustrations painted right into the page • Pages never turn by themselves; little hands stay in charge BUILT FOR FAMILIES • Your first 2 stories are free; a Story Pack adds 10 more with a simple one-time purchase — no subscription • Books live on your iPad or iPhone and work offline once created; narration is saved on-device, so favorite books replay instantly • Watch new books being made right on the shelf, and keep reading while you wait • No ads, no links, nothing to wander into — and it works with Guided Access, so story time stays story time Five minutes to a new book. A shelf full of stories where your child is the hero. A little reader who can't wait for the next page.