Extension Tracker

Pipe & Channel Flow: Manning's Calculator

Removed from the Chrome Web Store on 8 Nov 2026This extension is no longer available on the Chrome Web Store. It may have been removed by the developer or taken down by Google. It has left the store's daily lists, and the store no longer offers it for Chrome to install. The figures are as last seen on 26 Oct 2026.

No user count No ratings yet Last updated 19 Oct 2026

By Unnamed developer ckihacannnmelheabopnhllmeokcgnpi Search Google ↗ Wayback Machine ↗ Wayback Machine, old store ↗ Last checked 26 Oct 2026, 10:43 UTC

The listing

What the Chrome Web Store shows, as of the last check

Manning's and Hazen-Williams calculator: normal depth, pipe sizing, required slope, critical depth and Froude, offline.Summary from the listing
Developer
Not named in the listing
Enhanced Safe Browsing
Not trusted. What this means →
Category
Productivity › Tools
First published
19 Oct 2026
Last updated
19 Oct 2026
Version
1.0.0
Size
32.63 KiB
Minimum Chrome
88
Languages
1 language

English (United States)

Privacy policy
https://mf4633.github.io/extension-policies/pipe-channel-flow/privacy.html
Users over time As shown on the Chrome Web Store

The Chrome Web Store doesn't show a user count for this extension, as with most new extensions.

Show the numbers
CheckedUsersRatingRatings
2026-10-26–––
2026-10-20–––
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
–
by users, of 292,131 extensions
In its category
–
of 115,641 in Tools

What changed

Every change found on a check, newest first

  1. Removed from the Chrome Web Store.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 20 Oct 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Sites
  • https://extensionpay.com/*extensionpay.com
Browser features
  • storageSave settings and data in your browser

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All 4 extensions from this account →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 26 Oct 2026, 10:43 UTC.

How we collect the data

Cite this page

Citation
Extension Tracker. “Pipe & Channel Flow: Manning's Calculator” (ckihacannnmelheabopnhllmeokcgnpi). Chrome Web Store data, last checked 2026-10-26. https://extensiontracker.com/extension/ckihacannnmelheabopnhllmeokcgnpi. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_ckihacannnmelheabopnhllmeokcgnpi,
  title   = {Pipe & Channel Flow: Manning's Calculator (ckihacannnmelheabopnhllmeokcgnpi)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-26},
  url     = {https://extensiontracker.com/extension/ckihacannnmelheabopnhllmeokcgnpi},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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