# About Commentify - the founder story behind the LinkedIn commenting agent > Commentify began as the LinkedIn commenting tool founder Mithun Kumar built to market his own products. It grew into AI agents that comment on LinkedIn and X in your voice. - **URL**: https://www.commentify.co/about - **Last updated**: 2026-09-29 - **Category**: about - **Founder**: Mithun Kumar, product/GTM engineer turned founder (Bengaluru, India) - **Founded**: July 2024 - **Company**: Founder-led - **Comments published**: 2,000,000+ since July 2024 - **Profiles**: 10,000+ LinkedIn and X profiles - **Own traffic from LinkedIn**: 57.6% of commentify.co sessions (GA4, June 30 to September 27, 2026) - **Live today**: LinkedIn commenting, X commenting, LinkedIn posting - **Coming soon**: X posting, Reddit commenting - **Contact**: support@commentify.co --- ## TL;DR Commentify started as a tool Mithun Kumar wrote to market his own products, including Cold Pitch, a cold-email personalization tool. Commenting on the right LinkedIn posts every day worked, but took about two hours a day, so he automated it: find the posts worth replying to, draft comments in his voice, approve, post. The tool proved more useful than the product it was marketing, and in July 2024 it became Commentify. ## How it started Mithun started early: at 19 he was selling pre-built sales funnels to digital agencies. He went on to work as a product/GTM engineer at early-stage startups while building products of his own. In 2023 he built Cold Pitch, a tool that writes a personalized cold email for every prospect. Shipping it was easy; getting it in front of buyers was not. The lesson from every product: a profitable business needs distribution or capital. ## Why LinkedIn comments His buyers (founders, sales teams and agency owners) were on LinkedIn every day. A useful reply under the right post puts your name and headline in front of everyone reading it. He did it by hand, about two hours a day. It worked, but it was a second job, and when he skipped a day the visibility stopped. ## From tool to product He automated it: a tool that watched the topics and people he cared about, picked posts where a reply would be seen, and drafted comments in his voice for him to approve. It proved more useful than the product it was marketing, and in July 2024 it became Commentify. Jeni is the agent inside it; today she comments on LinkedIn and X and writes LinkedIn posts. ## Still how it grows Commentify was built to get products noticed on LinkedIn, and LinkedIn is still where Commentify itself gets noticed. Google Analytics 4, June 30 to September 27, 2026: linkedin.com sent 24,183 of 41,982 sessions to commentify.co (57.6%), more than every other source combined. Google sent 12.8%. [Screenshot](/images/traffic-acquisition/ga-session-source-linkedin.png). ## By the numbers - **2,000,000+ comments** published across **10,000+ LinkedIn and X profiles** since July 2024. - **Median 4.3x profile views at 90 days; 62% of accounts reached 3x or more.** - **Four anonymous founders' follower growth** from their LinkedIn analytics (total followers vs. 90 days earlier): +241% (1,594 followers), +85% (3,968), +33% (9,862), +26% (30,418). Screenshots: [01](/images/follower-growth/follower-growth-1594.png), [02](/images/follower-growth/follower-growth-3968.png), [03](/images/follower-growth/follower-growth-9862.png), [04](/images/follower-growth/follower-growth-30418.png). Method: Commentify production data, July 2024 to September 28, 2026. Profile-view figures cover the 55 accounts that ran for at least 90 days with 300+ comments in that window, comparing LinkedIn's 90-day profile viewers on day 90 with day 0. Results vary: the middle half landed between 1.4x and 10.4x. Founder follower growth also reflects their own posting, so treat it as examples, not a guarantee. ## Principles - **Comments have to add something.** Contextual replies in your voice, never templates. - **Your account comes first.** Human intervals within LinkedIn's and X's limits; political, tragic and controversial posts are skipped. - **You stay in control.** Review every comment until you trust the quality, then switch to auto-approve. - **Show the receipts.** Real numbers, with a note on where results vary. ## Who builds it Commentify is founder-led. Mithun designs and builds the product, and support calls are booked on his own calendar. Email Mithun directly: mithun@commentify.co. Support: support@commentify.co. LinkedIn: https://www.linkedin.com/in/imithun/ ## Related pages - [Commentify homepage](https://www.commentify.co/) - What the commenting agent does, pricing, and results. - [LinkedIn Posting Agent](https://www.commentify.co/linkedin-posting) - AI-drafted weekly LinkedIn calendar in your voice with generated images. - [Compare Commentify against every alternative](https://www.commentify.co/compare) --- View the original page at https://www.commentify.co/about. This is a markdown twin served per the AEO Spec v1.0 (https://dualmark.dev/docs/spec/overview) for AI agents and answer engines.