Limited-Time Offer

Get Extra 20% off on FullCharge Yearly Plan — available for first 10 users only. Don’t miss out! 🚀

WordPress theme comparison

Twenty Twenty-One vs Zack 990

At a glance

  • Twenty Twenty-One has more active installs: 200K+, against 30+ for Zack 990.
  • On a typical day, Twenty Twenty-One is downloaded about 10,717 times, Zack 990 about 0.
  • Zack 990 has no reviews yet.
  • Twenty Twenty-One was updated more recently: Aug 19, 2026, against May 17, 2010 for Zack 990.
  • Zack 990 has been around longer: since 2009, against 2020 for Twenty Twenty-One.

Line by line

Twenty Twenty-One leads on 3 of 3 comparable lines.

MetricTwenty Twenty-OneZack 990
Popular rank#12–
Active installs200K+30+
Downloads, last 30 days303.4K0
Rating4.2(44)No ratings
Last release2 months ago16 years ago
Requires PHP5.6–

From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.

Tags they share

More comparisons

Is one of these yours?

Track your theme against its rivals every day: rank, installs, downloads, ratings and their releases, with alerts when anything moves.

Start free