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Shopify appwhat they say

Flook

Flook: PDF Catalog to Flipbook

Convert your PDF catalogs into interactive flipbooks & lookbook by adding images, videos, and links. Increase your sales with the shopping cart integration.

★★★★☆3.9 (8)
Free$15/moPublish$24/moSell$49/moWholesale
Website ↗ Shopify App Store ↗
what mrrlens sees
MRR · Estimated$126–840
Opportunity—
Buyer threads · 30 d0
“The worst support I have experienced.”
#1 complaint · Bad Support · 2 of 2 complaints read · analysed Nov 2, 2026 · source

01Revenue

$126–840

A month · the formula and every input are below

How this range is computed

reviews × installs-per-review × paying share × entry price

  • reviews: 8
  • entry price: $15
  • 7–20 active installs per published review (measured: median 12 on the 20 most-installed apps)
  • 15%–35% of installs on a paid plan

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

Store data from the Shopify App Store listing, refreshed daily. Updated 1 d ago. Listed since 2020.

02Why users leave Flook

Bad Support2 reviews · 2 of 2

After weeks, uninstalled and requested refund; flipbook displays improperly; live help often out of office; emails unanswered; support poor.

“The worst support I have experienced.” source ↗

Sample: 2 recent complaints (1–3★ reviews) · clustered Nov 2, 2026 · complaints from Jun 2022–Nov 2023, none in the last 24 months — history, not today · each review labelled by a model, quotes verbatim

03How to build a better Flook

Build difficultyMediumShopify app integration, PDF rendering, media/link handling, and responsive support; no regulation or hardware.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better Flook

0 buyer threads in the last 30 days name Flook.

05Questions about Flook

How much revenue does Flook make?

MRRLens estimates Flook at $126–840 a month (low confidence). The range comes from public signals (reviews × installs-per-review × paying share × entry price), not from the company's books; the formula and its inputs are shown on this page.

What do users complain about most in Flook?

Across 2 recent complaints, the most common is bad support (2 of 2). After weeks, uninstalled and requested refund; flipbook displays improperly; live help often out of office; emails unanswered; support poor.

What are the best Flook alternatives?

The closest alternatives MRRLens found are K: PDF Viewer, Flipbook+Catalog, GA: PDF Catalog + PDF FlipBook and Simple PDF Flipbook. The full list, with why users leave, is on the Flook alternatives page.

See the full x-ray of Flook

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