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Chrome extensionwhat they say

BLUF

BLUF: Summarize PDF, YouTube & Websites

AI powered reading partner. Summarize & chat with any website, PDF document or YouTube video.

★★★★★4.5 (16) · 2k+ users
Free$4/moPremium
Website ↗ Chrome Web Store ↗
what mrrlens sees
MRR · Estimated$40–200
Opportunity—
Buyer threads · 30 d0
“Not working. Throwing error.”
#1 complaint · Bugs/Reliability · 1 of 1 complaints read · analysed Nov 1, 2026 · source

01Revenue

$40–200

A month · the formula and every input are below

How this range is computed

active users × paid conversion × monthly price

  • monthly price: $4
  • active users: 2,000
  • 0.5%–2.5% of active users pay

A range from public signals and the listed price, not a claim about the company’s books. Methodology.

Store data from the Chrome Web Store listing, refreshed daily. Updated 4 d ago.

02Why users leave BLUF

Bugs/Reliability1 review · 1 of 1

Extension fails with 'Could not load on this page. Please reload the page and try again.' error, blocking summarization entirely.

“Not working. Throwing error.” source ↗

Sample: 1 recent complaint (1–3★ reviews) · clustered Nov 1, 2026 · complaints from Mar 2024–Mar 2024, none in the last 24 months — history, not today · each review labelled by a model, quotes verbatim

03How to build a better BLUF

Build difficultyMediumThird-party content extraction, LLM APIs, and browser quirks drive reliability work; no regulation, payments, or hardware.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better BLUF

0 buyer threads in the last 30 days name BLUF, and 36 more are in the same market.

05Questions about BLUF

How much revenue does BLUF make?

MRRLens estimates BLUF at $40–200 a month (low confidence). The range comes from public signals (active users × paid conversion × monthly price), not from the company's books; the formula and its inputs are shown on this page.

What do users complain about most in BLUF?

Across 1 recent complaints, the most common is bugs/reliability (1 of 1). Extension fails with 'Could not load on this page. Please reload the page and try again.' error, blocking summarization entirely.

What are the best BLUF alternatives?

The closest alternatives MRRLens found are Writeseed, AI Toolbar and MaxAI. The full list, with why users leave, is on the BLUF alternatives page.

How many people use BLUF?

BLUF lists 2k+ users on the Chrome Web Store, rated 4.5 (16).

See the full x-ray of BLUF

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.