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OnlyChatAI
The #1 CRM & AI Chatbot built for OnlyFans and Fanvue agencies

Loops.so
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Resend
Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.

Which is more popular?
Based on our record, Folderly seems to be more popular. It has been mentioned 60 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | substy.ai | folderly.com |
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| Platforms | — | |
| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Substy is the first platform to combine a full CRM and an autonomous AI chatbot in a single system built exclusively for OnlyFans and Fanvue agencies - and today it's the most widely adopted solution on the market. The CRM is a complete agency workspace: add your chatters with custom access...
Folderly is more than just an email deliverability tool. Deep email deliverability fixes, technical setup, access to an up-to-date deliverability score, user-friendly template management, team accounts, and, now, spam trigger detection with best practices to follow—all of these features assist...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Folderly is recommended for marketers, email campaign managers, and businesses that heavily depend on email as a primary communication tool, especially those who experience issues with emails being marked as spam. It is also suitable for businesses looking to optimize their outreach efforts and improve overall email deliverability rates.
Walkthroughs and reviews on video.
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Supercharge Your Email Deliverability With Folderly
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Substy AI and Folderly. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Substy AI yet. Be the first one to post
Folderly: Full deliverability service offering warm-up, remediation, audits, configuration help, and a managed roadmap for recovery from spam placement.
Our field of work requires extensive communication via email; therefore, we needed a solution that would monitor our email deliverability rate and help us eliminate any possible issues causing our emails to land in...
With Folderly, we have a clear picture of the situation with our mailboxes, understand what exactly caused our emails to go to spam, and see our campaigns' performance getting better. The team is always ready to give...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Substy AI since Mar 2026.
Make • Build and automate workflows InvoiceBerry • Online invoicing for small businesses Gusto • Payroll, benefits and HR management Hive • Manage tasks, workflows and team’s work Lanva • Social video editing app. ClickUp • Manage... Source: almost 4 years ago
BTW, the same thing I noticed with emails. I recently started to work with them, and differentiating emails and sending them to the right group of people brings a more positive outcome. We recently checked it on https://folderly.com/.... Source: about 4 years ago
Finally, I would suggest you also use https://folderly.com/ in addition to those two email clients. I would help you avoid making your emails spammy and maintain a high email deliverability score. It’s essential if you’re using email for... Source: about 4 years ago
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