JetBuy is a voice-first ordering app that lets people reorder their usual food for delivery or pickup in about a second by speaking a saved command to Siri. After a one-time setup that ties phrases like "dinner," "coffee," or "sushi" to a specific order, a user just says "Hey Siri, JetBuy Dinner" and the order is placed - replacing the roughly 20 taps a typical delivery app takes with zero. Founded by Ryan Holmes and built around the insight that most people order the same handful of things over and over, JetBuy launched on the App Store in 2024 and demoed at Y Combinator's 2025 Demo Day.
Mixy is a mobile app that lets anyone make music mashups in seconds - blending the vocals of one song with the beat of another, no DJ skills required. Powered by the founders' own on-device AI models, it produces real-time mixes for free and auto-credits the source artists on every share. Founded in 2025 by Joe Kennedy and Jonah Siegle and backed by Y Combinator's Fall 2025 batch, Mixy grew to 1.5M users and 18M mashups within three months of launch, hitting #1 in Music and #3 overall on the App Store.
Hook is a New York-based music technology company behind an AI-powered social app that lets fans legally remix and mash up licensed songs into short-form clips for social media. By combining a catalog of over 20 million licensed recordings with AI tools for genre-shifting, tempo changes and video editing, Hook aims to turn unauthorized fan remixing into a channel that keeps artists and rights holders in control - and paid. Founded by former JioSaavn COO Gaurav Sharma, the company launched on iOS in early 2026 and raised a $10 million Series A led by Khosla Ventures.
Maka Kids is a Detroit-based children's media company building an ad-free, algorithm-free streaming app for kids ages 0 to 6. Founded in 2023 by Isabel Sheinman and Tanyella Leta, the company designs screen time around child well-being rather than engagement. Every piece of content is scored against Maka Imprint, a patent-pending developmental framework built over two years of research with the Yale Child Study Center that maps seven domains of early childhood development across more than 650 indicators. Maka raised $3 million in seed funding led by Michigan Rise in May 2026.
Tertulia is a New York-based book discovery and commerce startup that turns the internet's endless chatter about books into personalized reading recommendations, then lets you buy the book in a couple of taps. Named after the informal literary salons of Spanish cafes, it scans social media, podcasts, critics and the wider web to surface the titles people are actually talking about, pairs that with human curation, and wraps the whole thing in a community co-op that lets avid readers become part-owners of the store. In 2025 it expanded beyond readers to authors with Tertulia for Authors, an all-in-one website builder and marketing platform.
Willow is a San Francisco startup building voice-first interfaces that turn natural speech into polished text across every app on Mac, Windows, and iPhone. Founded in 2024 by Stanford dropouts Allan Guo and Lawrence Liu and backed by Y Combinator, Willow promises roughly 3x the accuracy of built-in dictation with ~200ms response time, automatic filler-word removal, style-matching, and an AI mode that reshapes rough spoken notes into finished messages. The company raised $4.2M in seed funding and has grown roughly 50% month over month, with early enterprise users including Uber, Heidi Health, and Zego.
Please (formerly MultiOn) is a Palo Alto consumer AI company building a thinking reminders and planning app that captures ideas, connects the dots between them, and nudges users at the right moment so they never miss a thing.
Skillest is a mobile marketplace that connects students with elite sports coaches - primarily in golf - for one-to-one remote video lessons. Players film a swing, coaches reply with annotated video, voice notes and drills, and improvement happens without a tee-time.
Copilot Money is a subscription personal finance app for the Apple ecosystem that pulls all of your accounts - checking, credit cards, investments, loans - into one private, ad-free dashboard. Its standout feature is AI-powered transaction categorization that learns from your corrections, plus net worth tracking, budgets, recurring-expense detection and investment monitoring. Founded by Chilean engineers Andres Ugarte and Gabriel Dieguez Franzani, the app launched in January 2020, reached profitability in 2023, crossed 100,000 subscribers, and raised a $6M Series A in March 2024 led by Adjacent.
Allen Chen is the co-founder and CEO of Fitbod, the San Francisco strength-training app that uses machine learning to design a fresh, personalized workout every time you open it. A UCLA computer science grad and former Wall Street high-frequency trading strategist, Chen swapped optimizing stock portfolios for optimizing sets and reps, building an algorithm that picks exercises the way he once picked trades. Since launching in 2015 with co-founder Jesse Venticinque, Fitbod has grown to more than 300,000 paid subscribers while staying lean and profitable.