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Publisher

marc-marc

marc-marc publishes 4 live listings in the Chrome Web Store, with 106k users between them, as of our catalog pass of 2026-10-31.

Live listings
4
Users between them
106k
Trader status (EU)
No trader declaration in the store.
In our catalog since
2026-08-31
Website
school.keyhero.com

The store shows its Established publisher badge on 4 of the listings below.

Its listings

  1. Typing Test - KeyHero No permissions declared · version 1.5.0 · updated 2015-03-28 100k users ★ 4.3
  2. Fat Cat Workout - 7 minute No permissions declared · version 3 · updated 2013-10-06 5k users ★ 4.4
  3. Typing School - Teach Typing No permissions declared · version 2 · updated 2016-08-04 598 users ★ 2.6
  4. Website to WordPress conversion tool No permissions declared · version 1 · updated 2015-03-06 433 users ★ 2.3

Figures come from the public Chrome Web Store, which our own crawler reads up to 2 times a day. We do not install or audit extensions and publish no contact details for their developers. Catalog pass of .

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Where the data comes from: how the catalog is built