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x1 (YC F24) — Your personal AI fitness coach, over iMessage

x1 is an AI app builder that helps anyone create real, App Store-ready iOS apps. Users start with a structured product plan, design polished iPhone screens in a visual canvas, build features step by step, and prepare launch assets like App Store listings, screenshots, monetization, and analytics.

x1 is a Y Combinator company in the Fall 2024 batch. Its directory entry describes it as: Your personal AI fitness coach, over iMessage. The founder listed is Manil Lakabi (Founder/CEO) (Y Combinator directory entry, November 18, 2024).

6 more companies from YC Fall 2024 ↓

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x1

New accelerator entry · 2024-11-18 · the record

Fall 2024
batch
5
people
Early
stage
United States of America
region
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What the record says

BatchFall 2024
Announced2024-11-18
StageEarly
StatusActive
Team size5
IndustryConsumer
Sub-industryConsumer
SectorsAI-Enhanced Learning, Developer Tools, Generative AI, No-code, Automation
RegionsUnited States of America, America / Canada, Remote, Partly Remote
BasedSan Francisco, CA, USA
HiringNo
Founded2026
YC group partnerDavid Lieb
Previously known asFoundryAI, Foundry

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Also in YC Fall 2024

Same batch, Consumer first.

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In their words

x1 is an AI app builder that helps anyone create real, App Store-ready iOS apps. Users start with a structured product plan, design polished iPhone screens in a visual canvas, build features step by step, and prepare launch assets like App Store listings, screenshots, monetization, and analytics. Instead of generating one-shot AI demos, x1 gives builders a guided system for turning an idea into a real app.

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  8. Sources

    1 cited source found

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x1: Accepted into Y Combinator Fall 2024
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Permanent URL: https://mentionfox.com/funding/yc-x1
Last updated 2026-10-29
Primary record: Y Combinator directory entry
x1 (YC F24) — Your personal AI fitness coach, over iMessage. MentionFox, 2026-10-29. https://mentionfox.com/funding/yc-x1