A carefully crafted YouTube study extension: 608 users in five months, all earned by squeezing out long-tail keywords in the store

Keepframe: why it could take off (it hasn't yet)

Chrome extension · id mmpomhgejbbbhakgmmkfkagndidmffla · researched 2026-11-06

One line

Keepframe is a learning sidebar that sits next to the YouTube player. Before you watch, it reads the description and comments and tells you whether the video is worth your time; during playback it pops up concept cards tied to the current timestamp (Live Frames); after you finish, it generates a Brief, Study Notes, and Full Summary, plus a timestamped transcript, exportable to Word or PDF. The developer is Robert Nowakowski in Warsaw, Poland; a two-person team, pre-seed.

Verdict: it hasn't broken out yet. Five months in, it has 608 users, 10 ratings, 1 followers on X, and 2 subscribers on its YouTube channel. The "up 18x in three months" figure from the research is calculated from a very low base of 34. In practice, since mid-September it has been adding a steady dozen-or-so users a day (in October, between +10 and +20 per day). No spike, no paid acquisition, no creators. What sets it apart is the format: competitors summarize after you watch, while this one explains as you watch and adds a "is it worth watching?" pre-check. The product is polished (53 releases in five months, store pages in 52 languages, output in 95 languages). But so far that differentiation has only earned slow organic growth, not an inflection point in the growth curve.

1. Basic data

• Store page (2026-11-06 read): v2.17.0,11-06 update, 5.24MiB, 52 store languages, in-app purchases listed; Offered by Keepframe.One, developer Robert Nowakowski (Stanisława Pyjasa 4/15, Warsaw, PL), EU trader. First store listing 2026-06-01 (from the item table in our chromestore library).
• Our library: chromestore.item shows 11-01 with 523 users, 9 ratings, a 5.0 rating, not Featured, no Established badge. It was picked up by the seed-sample random sample, not by snowballing. The developer has only this one extension (developer_extensions=1).
• extops.dev curve (extops.dev/extensions/mmpomhgejbbbhakgmmkfkagndidmffla, read 11-06):
  • 8/31 35 → 9/13 42 → 9/20 58 → 9/28 79 → 10/04 120 → 10/08 154 → 10/16 301 → 10/25 410 → 11/01 545 → 11/06 608; +488 over the last 30 days.
  • Rating count went from 10/08 to 11/01, staying at 9,11/03 before climbing to 10.
  • Barely moved until late August, started climbing mid-September; steepest from Oct 8 to 16 (about +18/day), then leveled off around +10.
• Release cadence: extops logged more than 15 releases in October (2.15.12 → 2.16.18 → 2.17.0); extensionauditor.com recorded 53 versions.
• Pricing: Free on the website (10 analyses per month; document creation and export limited to the first 7 days) / Pro $4.99/month or $49/year (30 uses) / Power $9.99/month or $99/year (unlimited, Auto-analyze). Payments through Stripe; paid tiers have a 7-day trial, no account required (Pricing section of the keepframe.one homepage). No revenue disclosed.

2. Competitors

YouTube summary / notes extensions are among the most crowded categories in the Chrome Web Store (chromestore library: extensions with youtube plus summary/note/transcript in the name, 10k+ users, about 40 of them):

How it differs from these products:

• Most competitors give you one summary after watching (or instead of watching). Keepframe follows playback, showing layered concept cards beside the current segment (quick overview / basics / background / why it matters, with CC-licensed illustrations).
• A free "is it worth watching" step before playback: reasons for and against, takeaways from the comments, channel info.
• One analysis produces three documents, Brief, Study Notes, and Full Summary, plus the transcript; in exported files the timestamps link back to the video.
• No account; data stays local.
• Output in 95 languages; store page in 52 languages.

The site has dedicated /compare/eightify, /compare/notegpt, and /compare/glasp pages (2026-07-27), plus one overall comparison table (2026-09-09).

3. Where users came from (growth tactics)

Checking the evidence item by item:

• Reddit organic posts (confirmed, small volume):
  • r/chrome_extensions "AI-Powered Note taking extension", 2026-08-21; the author explains Keepframe in the comments (indexed via Brave).
  • r/SideProject "We made a Chrome extension that explains YouTube videos while they play", about 2026-08-26, posted by u/timeline_scrub (freshbuilds.io and kblip.com both picked it up from this post; kblip records 1 engagement).
  • From 8/26 to 9/10 after the post, user count stayed around 35 and brought no growth.
• LinkedIn / X / Facebook / YouTube official accounts (confirmed, almost no reach):
  • LinkedIn company page founded in 2026, 2–10 people; the 9/13 post has only 1 comments (the official account's own demo link).
  • X @KeepframeOne registered 2026-07-18, 1 followers, 97 posts, single-tweet impressions 0–12. From 9/14 to 9/25 it posted a daily three-tweet thread on "Roman history / Assyrian history" drawn from videos like Fall of Civilizations, showing how to learn history with it; then it stopped (X API, 11-06).
  • YouTube @KeepframeOne has 2 subscribers; the demo video has 91 views (10/03 subscribers).
• Circle / early reviews (highly likely from acquaintances):
  • The first store review was 6/4 (3 days after launch), Andrzej Szmajdziński writing "helped me a lot with my diploma" (a Polish name); 6/23 Araksia Sarkisian.
  • 9/14 reviews arrived on the same day (Vladyslav Verbytskyi, Sourabh Ahuja), exactly the two days of LinkedIn/X promotion.
  • 10 ratings from 608 users suggests later users were largely not brought in by acquaintances.
• Startup events / funding platforms (confirmed, in progress):
  • Web Summit Lisbon 2026 ALPHA booth (websummit.com/appearances/lis26/…/keepframe), the event runs 11/9–12, not yet held.
  • Listed on RaiseTalks as pre-seed, Poland, Edtech.
  • The site has a "For educators, trainers and institutions" section offering pilot partnerships, a B2B2C route into universities; no case study has surfaced yet.
• SEO / content pages (confirmed, in place, results unverified):
  • Two tutorial pages: /learn/youtube-video-to-study-notes and /learn/summarize-youtube-video.
  • Three competitor comparison pages plus one overall comparison table.
  • Brave search for "keepframe" finds these pages, but we have no traffic data.
• Store search + multilingual (presumably the main driver since October, unconfirmed):
  • The title was changed to the keyword-stuffed "YouTube Video Notes As You Watch, Tailored Summary & Transcript". The 2.16.9 version stored by crxsoso (about 10/25,410 users) still has the title "Keepframe — YouTube: Live Frames, Study Notes & Transcript", which suggests the title was only changed at the end of October.
  • Searching the big terms youtube notes / study notes / video notes / transcript in the store, it doesn't show up in the top 10.
  • It ranks for long-tail queries: "video notes as you watch" at #6, "tailored summary" at #2 (chromewebstore.google.com/search, 11-06).
  • The store page is localized into 52 languages (including Chinese, Hindi, Arabic, and Swahili), so competition is lighter when non-English users search in their own language. This may be where the steady slope from October came from, but we can't get country-level data.
• Frequent releases: more than 15 updates in October. There's no official word on whether the Chrome Web Store ranking factors in update freshness, so this is only a possible minor contributor.
• Paid acquisition: neither the googleads nor metaads library shows an advertiser for Keepframe / Nowakowski. Our list only tracks some products, so not finding it doesn't mean they didn't buy ads, but the shape of the user and rating curves doesn't look like paid acquisition (which usually shows up as a step, not a slope).
• Media / big accounts: HN (our library + Algolia), Product Hunt (our library), and x-radar each show 180 mentions in the last 0 days.

4. Why it's taking off (the small amount it has)

1. Learning from long videos is a real need, and LLM costs over the past 2026 years have dropped enough to compute while you watch: Live Frames is generated on a rolling playback window, which would have been too expensive a year ago but is now covered by a $4.99 subscription. The user reviews mention "2-hour podcast, watched in 10 minutes" and "writing a graduation thesis", which are real use cases.
2. The shape is different from the others: there are no fewer than 40 summarizer tools, and it's one of the few built around "explaining as you watch". Its complex features are named clearly and consistently (Live / Kept Frames, Grab, Dig Deeper), the site is candid, and the comparison pages proactively say when to choose a competitor instead. This keeps a small group of serious learners and supports a 5.0 rating.
3. The store page is localized into 52 languages and outputs 95 languages, and in late October the title was changed to long-tail keywords: growth is a steady slope with no spikes, consistent with organic search rather than a one-off post or event. This is an inference; there's no per-channel data.
4. What it doesn't have: social spread (nobody is looking on X or LinkedIn), creators, media, paid acquisition, or word of mouth beyond their own circle (ratings barely move).

5. Is differentiation the reason it took off?

The differentiation is real: pre-watch check + tiered concept cards for explaining as you watch + three study documents from one analysis + no sign-up + 95 languages. But that isn't why it's growing, at least not yet:

• Only 10 of 608 users left a rating, and almost no new ratings have come in since September, which suggests new users aren't moved enough to rate it;
• Broad-term searches don't rank it, so people have to already know the concept of "explaining as you watch" before they search for it;
• The free tier only lets you export documents for 7 days, and the paywall is higher than Glasp (free) or YouTube Ask (free), so conversion is probably low (unverified).

Right now its growth looks more like a new extension picking up a bit of organic traffic in a big category through long-tail terms and multilingual listings, not growth driven by differentiation.

6. How many people have seen it

Not much public awareness yet:

• No revenue disclosed, not on TrustMRR;
• HN, PH, and x-radar are all 0;
• X has 1 followers, YouTube channel has 2 subscribers;
• Only appears on AI auto-scraped directory sites like freshbuilds and kblip.

The Web Summit ALPHA booth 11/9–12 was its first appearance at a major event.

7. Copycats

No one has been spotted copying it. The "Live Frames / explain as you watch" format hasn't been seen from a second company. Independent newcomers in the broader YouTube notes / summary / flashcard space do show up every month (Notebook OS, LessonSide, ClipMark, Memoecho, Claras, Pi Lens, etc.), but they're just the normal churn of this category, not copycats of Keepframe.

8. What others can borrow

• How the competitor comparison pages are written: "An honest split", first stating clearly when to pick the rival, then explaining where it wins. This helps SEO and trust, and it's cheap.
• No sign-up + Stripe subscription + install ID: no login friction, suited to cold-starting an extension.
• Store page localized into 52 languages, output in 95 languages: in a crowded English category, it picks up traffic through long-tail searches in smaller languages.
• Free tier design: pre-watch checks like "is it worth watching" don't use up analysis quota. A useful zero-cost feature keeps people around, and payment is gated on exports and documents.
• Lessons learned:
  • The brand name "Keepframe" collides with a pile of same-named products (photo filters, picture frames), so brand-term search isn't clean;
  • Posting a history explainer thread on X got zero impressions, wasted effort;
  • The category's big keywords are already locked by 2M-scale incumbents, and a novel shape alone struggles to break out. It needs a clear audience entry point (Pi Lens, for example, targets Indian exam students).

9. Uncertain

• Which channel did the October slope actually come from (store long-tail, which country, a university pilot, or some unindexed community post)?
• When was the store page localized into 52 languages?
• Paid conversion rate and revenue.
• Whether there's a step up after Web Summit.
• The exact vote counts and comments on the two Reddit posts (Reddit refuses scraping).

Sources

• Chrome Web Store page: chromewebstore.google.com/detail/mmpomhgejbbbhakgmmkfkagndid… (including /reviews), 2026-11-06
• extops.dev:extops.dev/extensions/mmpomhgejbbbhakgmmkfkagndidmffla,2026-11-06
• Official site: keepframe.one/, /compare/eightify|notegpt|glasp, /learn/…
• Our library: chromestore (item, item_snap, related); googleads / metaads / hackernews / producthunt no results; x-radar no results
• Reddit: r/chrome_extensions/comments/1vuim9x (2026-08-21), r/SideProject/comments/1vyyp6o (via freshbuilds.io/products/keepframe, kblip.com)
• Web Summit:websummit.com/appearances/lis26/f561787d-…/keepframe;RaiseTalks:app.raisetalks.com/keepframe
• LinkedIn post activity-7504950735235768321 (2026-09-13); X API @KeepframeOne (11-06); YouTube lbcXMc4c3T0 (91 views)
• crxsoso.com old title and 410 user snapshot; extensionauditor.com (53 versions)