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Blue

YC S25

San Francisco, US · Founded 2024 · 6 employees · 20 known investors

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A keyboard application for iPhone that uses voice dictation, powered by OpenAI's ChatGPT, to enable faster text input through speech.

Also known as Effortless Trading Inc. · L5 Assistant

AI & Machine LearningConsumerHardwareProductivityAIUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (S25)

Blue was founded in 2024 by Omar Abdelaziz, Farhan Hossain, and Peter Krogh.

OAOmar Abdelaziz
Omar AbdelazizCo-founder & CEOOmar Abdelaziz led teams at Google Assistant and Scale AI, and holds an LLM-based computer-use patent. He is now building a voice assistant company.
FHFarhan Hossain
Farhan HossainCo-FounderFarhan Hossain is a robotics and product design engineer with a background in hardware development and manufacturing. He worked as an engineer at Apple on the Vision Pro and has spent over a decade in robotics, wearables, and consumer electronics.
PKPeter Krogh
Peter KroghCo-FounderPeter Krogh has spent over two decades working on natural language technology, initially through engineered systems and more recently with large language models. He currently focuses on developing AI systems capable of conducting spoken conversations.

Investors · 20

Pioneerlisted by PioneerToronto, Ontario

How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us

Shorooq Partnerslisted by Shorooq PartnersAbu Dhabi

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Y Combinatorlisted by Y CombinatorSan Francisco · $500K

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Andreessen HorowitzreportedMenlo Park · $500K – $50M

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Batch Venturesreported

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Blast.Clubreported$5.5M

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Calm VenturesreportedSan Francisco

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Cur8 CapitalreportedLondon

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Flex Capital PartnersreportedSan Francisco · $500K – $2M

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Impatient VenturesreportedVenice

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INCE CapitalreportedShanghai

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Korea Investment PartnersreportedSeoul · $3M – $10M

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Peterson Venture PartnersreportedSalt Lake City · $5M – $25M

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Start Equity Venturesreported

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Tango.vcreportedRedwood City · $50K – $250K

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Think+ Ventures Management, LlcreportedPalo Alto · $200K – $500K

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Ventioneers CapitalreportedOakville

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Vest Capital Partnersreported

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Wisdom VenturesreportedLos Gatos

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Related companies · 8

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Companies working in the same space as Blue.

Legal entities · 1

corporate structure
Effortless Trading Inc.

In the news

Introducing the Blue Smart Dictation Keyboard for iPhoneycombinator.com · May 2026Blue: The voice assistant your phone has been missing.ycombinator.com · Aug 2025

Frequently asked questions

What does Blue do?
A keyboard application for iPhone that uses voice dictation, powered by OpenAI's ChatGPT, to enable faster text input through speech.
Who founded Blue?
Blue was founded by Omar Abdelaziz, Farhan Hossain, Peter Krogh in 2024.
Who are Blue's investors?
Blue's investors include Eval Ventures Fund, Pioneer, Shorooq Partners, Y Combinator, Andreessen Horowitz, Batch Ventures, Blast.Club, Calm Ventures and 12 more.
Where is Blue headquartered?
Blue is headquartered in San Francisco, US.