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Turbocharge your typing using the world’s leading AI-powered writing assistant for Windows, featuring real-time text predictions, spelling, and grammar corrections. Lightkey learns your typing patterns and gradually predicts up to 12 words including punctuation marks, allowing you to compose your content faster, with confidence. With Lightkey, you don’t need to pause, go back and fix your mistakes. Just hit 'tab', keep going and preserve your line of thought. Lightkey learns your unique writing style and gradually delivers a highly personalized experience with over 60 industry-oriented content domains such as technology, academia, legal and more.

Trusted in over 170 countries

What’s New
  • Updated version with lower price, new UI, new features, & more accuracy in its AI-powered text predictor
  • Learns your typing patterns & gradually predicts up to 12 words including punctuation marks, allowing you to compose 4 times faster
  • More effective and accurate than Word and Google Docs at text prediction for blog and academic content
  • Great for content in technology, business, finance, law, academia, and more. Using its deep learning context analysis capabilities, Lightkey will offer you the most relevant terms depending on the context. It will review your text and give you real-time suggestions for misspelled words

Need Lightkey Pro on more devices? Check out these options and purchase these Pro Plan Bundles for 2 or 3 devices:


  • 5.0/5 stars on G2: ★ ★ ★ ★ ★
  • PC Mag: “The latest version has been updated with a turbo-charged user interface and improved AI that can run rings around (Google) Docs and Word in terms of accuracy and corrective prediction.”
  • The Next Web: “While your phone will suggest a helpful next word to complete your text thought, Lightkey Pro is in another universe of anticipation”
  • Zapier: ”Type less with this fast and accurate predictive text app”
  • The Windows Club: ”One of the most futuristic and innovative tools that I came across”
  • Analytics India Magazine: ”Lightkey is giving a stiff competition to Google’s Smart Compose”

What Customers Say

Anne A. ★ ★ ★ ★ ★
"This product is very helpful, and I find that it somewhat improves my typing speed although I'm already a fast typist. It also learns as you go. Absolutely worth it for the lifetime subscription."

Mohamed K. ★ ★ ★ ★ ★
"This software is essential. The price offered is without competition. I'm glad I acquired it. Thank you to SharewareonSale for offering it at this price."

Marcus V. ★ ★ ★ ★ ★
"The more you use it the better it gets. You have to give it time to learn the words you use. I switched from Trello to Notion, for todo lists and notes, specifically because Lightkey works automatically in Notion. I've found it's more helpful for longer words. With shorter words it's usually faster to just finish typing the word. It's kind of exciting when you're typing and Lightkey shows you the rest of a word before you're done typing it. Just hit tab and move on to the next word."

System Requirements

  • Windows 7 onwards (including Windows 11)
  • Microsoft Office 2010 onwards (including Office 2021 & Office 365)
  • Minimum 4GB RAM (8GB recommended)
  • Dual Core processor

Important Details

  • Length of access: lifetime
  • Redemption deadline: redeem your code within 30 days of purchase
  • Device per license: 1
  • Access options: desktop
  • Software version: 25.11
  • Updates included
  • Have questions on how digital purchases work? Learn more here


  • Unredeemed licenses can be returned for store credit within 30 days of purchase. Once your license is redeemed, all sales are final.