Folderly vs ZeroBounce
Side-by-side from the Top 11 ranking of The 11 Best Email Deliverability Tools. Last verified June 15, 2026.
The short answer
Folderly ranks higher on Top 11 (#5 vs #9) for Email marketers and developers improving inbox placement rates. A specialized platform for fixing deliverability problems common in cold email campaigns.
At a glance
| Folderly | ZeroBounce | |
|---|---|---|
| Top 11 rank | #5 / The 11 Best Email Deliverability Tools | #9 / The 11 Best Email Deliverability Tools |
| Score (out of 9.4) | 8.3 | 7.5 |
| Best for | Fixing cold outreach deliverability | Verification with add-on tools |
| Pricing | $$$ ($200 to $2000/mo) | $ (Pay-as-you-go or $15/mo+) |
| HQ | Wilmington, USA | Santa Barbara, USA |
| Founded | 2019 | 2015 |
Folderly
A specialized platform for fixing deliverability problems common in cold email campaigns.
folderly.com/ZeroBounce
An excellent list verification service with a growing suite of deliverability add-ons.
www.zerobounce.net/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.