Bookly
Depends
Confidence: Medium
Buy if your site runs WordPress and you will apply security patches promptly . it is cheap and widely used.
New check
Comparison
Bookly and Calendarista both land on Depends.
Buy if your site runs WordPress and you will apply security patches promptly . it is cheap and widely used.
Buy if you run a WordPress site, want flat-fee bookings with a bundled mobile app, and will keep the plugin patched.
| Compare | Bookly | Calendarista |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | WordPress sites needing native booking | WordPress site owners taking appointments |
| Who it's not for | Non-WordPress websites . entirely wrong tool | Non-WordPress sites . it only works inside WP |
| Privacy | Poor track record: 8 CVEs in reviewed sources, including unauthenticated SQL injection and auth bypass; vendor site shows no security page.10 | Four 2024 CVEs disclosed . run the latest version or risk known exploits. |
| Support quality | No support-quality evidence in sources | ~1-employee vendor; unresolved conflict reports |
| Public sentiment | Small-business reviewers call Bookly a solid WordPress-native Calendly alternative, while longtime users grumble about shifting pricing.⁵ | reviewers rate Basic Edition 2.5/5 with complaints about conflicts and sync, while some Reddit users still recommend it for niche scheduling.16 |
| Biggest gotcha | Unauthenticated SQL injection CVE-2026-61949 . update immediately; real data-exposure risk.11 | Outdated installs are exposed to known CVEs; patch immediately or risk auth bypass and SQL injection. |