# Call Now vs OT Zalo

> Call Now vs OT Zalo compared on installs, downloads, ratings, updates, compatibility and support. OT Zalo comes out ahead, winning 4 of 6 head-to-head checks against Call Now.

**OT Zalo comes out ahead, winning 4 of 6 head-to-head checks against Call Now.** Choose Call Now if you care most about last updated and tested up to. Choose OT Zalo if you care most about active installs, downloads (30 days) and download trend.

| | Call Now – Group Contact Buttons – PHT Blog | OT Zalo – Zalo Chat Widget, Follow widget |
|---|---|---|
| Active installs | 100+ | 200+ ✅ |
| Downloads (30 days) | 102 | 104 ✅ |
| Download trend | -3.8% | +14.3% ✅ |
| Rating | — | — |
| Reviews | 0 | 0 |
| Health score | 25/100 | 26/100 ✅ |
| Last updated | 6 years ago ✅ | 9 years ago |
| Tested up to | WP 5.4.24 ✅ | WP 4.8.33 |
| Support resolved | — | — |
| Requires PHP | Any | Any |
| First released | Apr 2020 | Sep 2017 |

## Frequently asked questions

### Which is better, Call Now or OT Zalo?
OT Zalo comes out ahead, winning 4 of 6 head-to-head checks against Call Now. Choose Call Now if you care most about last updated and tested up to. Choose OT Zalo if you care most about active installs, downloads (30 days) and download trend.

### Is Call Now more popular than OT Zalo?
OT Zalo is the more popular of the two with 200+ active installs, compared with 100+ for Call Now.

### Can I use Call Now and OT Zalo together?
Both plugins cover zalo chat, so most sites only need one. Running two plugins that do the same job can cause conflicts and slow your site down — pick the one that fits best and remove the other.

### Are Call Now and OT Zalo free?
Yes. Both are free to download from the official WordPress.org plugin directory. Either may also offer paid upgrades from its developer.


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Source: live WordPress.org data · HTML version: https://pageforge.pro/directory/compare/group-contact-buttons-pht-blog-vs-ot-zalo/ · Generated 2026-10-20 20:16 UTC by PageForge