WordPress theme comparison
Cobalt Blue vs Twenty Fifteen
At a glance
- Twenty Fifteen has more active installs: 60K+, against 60+ for Cobalt Blue.
- On a typical day, Twenty Fifteen is downloaded about 1,662 times, Cobalt Blue about 0.
- Cobalt Blue is rated higher: 4.7 out of 5 from 3 reviews, against 4.4 from 54 reviews.
- Twenty Fifteen was updated more recently: Aug 19, 2026, against May 9, 2014 for Cobalt Blue.
- Cobalt Blue has been around longer: since 2013, against 2014 for Twenty Fifteen.
Line by line
Twenty Fifteen leads on 3 of 4 comparable lines.
| Metric |  Cobalt Blue |  Twenty Fifteen |
|---|---|---|
| Popular rank | – | #45 |
| Active installs | 60+ | 60K+ |
| Downloads, last 30 days | 0 | 71.1K |
| Rating | 4.7(3) | 4.4(54) |
| Last release | 12 years ago | 2 months ago |
| Requires PHP | – | 5.2.4 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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