WordPress plugin comparison
Optimus vs Kas Viewer
At a glance
- Optimus has more active installs: 30K+, against 10+ for Kas Viewer.
- On a typical day, Optimus is downloaded about 60 times, Kas Viewer about 1.
- Kas Viewer is rated higher: 5.0 out of 5 from 1 review, against 4.2 from 69 reviews.
- Optimus was updated more recently: Mar 2, 2026, against Mar 11, 2010 for Kas Viewer.
- Optimus is tested with a newer WordPress: 6.9.11, against 2.9.2 for Kas Viewer.
- Kas Viewer has been around longer: since 2010, against 2012 for Optimus.
Line by line
Optimus leads on 6 of 7 comparable lines.
| Metric |  Optimus |  Kas Viewer |
|---|---|---|
| Popular rank | #1,070 | #47,712 |
| Active installs | 30K+ | 10+ |
| Downloads, last 30 days | 1.6K | 35 |
| Rating | 4.2(69) | 5.0(1) |
| Support threads resolved | – | – |
| Tested up to | 6.9.11 | 2.9.2 |
| Search multiplier | ×0.70 | ×0.00 |
| Last release | 8 months ago | 16 years ago |
| Requires PHP | 5.6 | – |
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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