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InboxStack VS Folderly

Compare InboxStack VS Folderly and see what are their differences

InboxStack

Email deliverability intelligence with root-cause AI

Rating
0 reviews
Pricing
Freemium Free trial $49 / Monthly
Alternatives Is it good?
Folderly

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.

Rating
5.0 · 9 reviews
Pricing
Open source Paid Free trial $120 / Monthly (Folderly Premium)
Alternatives Is it good?
BusinessXray
Automated 60-second forensic business auditing pipeline powered by OpenAI Nano AI. Built for consultants and analysts. sponsored

Which is more popular?

Based on our record, Folderly seems to be more popular. It has been mentioned 60 times since March 2021.

social mentions
0 vs 60
Reputation Management popularity
100% vs 0%
alternatives listed
10 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

InboxStack
Folderly
Website inboxstack.com folderly.com
Pricing
Freemium Free trial $49 / Monthly Official pricing
Open source Paid Free trial $120 / Monthly (Folderly Premium) Official pricing
Platforms
Web
Google Workspace Office 365 Outlook Yahoo Zoho AWS Sendgrid SendinBlue Mailgun Sendpulse Intercom Klaviyo Sparkpost SMTP API Marketo Elastic Email Rackspace Technology +15
Company Startup from India · 1 - 9 employees · 2026 —
Listed in
Email Deliverability Reputation Management Email Warm Up Email Productivity Email +2
Email Deliverability Email Marketing Platforms Email Marketing SaaS Email Productivity Email Security +3

About InboxStack and Folderly

In their own words, as submitted to SaaSHub.

InboxStack
Folderly

InboxStack is an email deliverability intelligence platform built for teams who need to know why their emails aren't reaching the inbox — not just that they aren't. At its core is Brain, a proprietary causal AI engine trained on a 22-year deliverability knowledge base, which correlates signals...

Read more about InboxStack

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...

Read more about Folderly

Features and specs

What each product offers, as listed by its team.

InboxStack 8 features
Folderly 13 features
  • Inboxstack Brain
    Root-cause AI analysis (Brain)
  • Email Audit
    DNS/SPF/DKIM/DMARC authentication audit
  • DMARC Monitoring
    DMARC report monitoring
  • Deliverability Monitoring
    Google Postmaster, SNDS, Senderscore monitoring
  • Blacklist Monitoring
    50+ blocklist monitoring
  • Seed Testing
    Seed testing & inbox placement tracking
  • Warm-up
    Warmup plan and monitor
  • ESP Dashboard
    Multi ESP view dashboard
  • Spam Fixing
  • Email Deliverability Testing
  • Email Placement Dashboard with Analytics
  • Technical Setup of Domain DNS and Authentication
  • Active Domain and IP Monitoring 
  • Content Analysis and Recommendations
  • Email Templates Management
  • Spam Triggers
  • Best Practices
  • Dynamic Seed Rotation
  • Custom API Integration
  • Dedicated Customer Success Manager
  • Onboarding Support

Analysis

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

InboxStack
Folderly

No analysis of InboxStack yet.

Overall verdict

  • Overall, Folderly is a beneficial tool for businesses that rely heavily on email marketing and need to ensure their communications reach their audience's inbox. Its specialized focus on improving email deliverability and providing actionable insights makes it a valuable asset for enhancing email campaign performance.

Why this product is good

  • Folderly is often regarded as a good tool because it provides efficient email deliverability solutions. It helps businesses improve their email performance by reducing emails going to spam and enhancing inbox placement. This is achieved through features like email warm-up, domain and IP reputation management, and detailed deliverability analytics. Its user-friendly interface and comprehensive reporting tools make it accessible for businesses looking to maximize the efficiency of their email campaigns.

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.

Videos

Walkthroughs and reviews on video.

InboxStack 0 videos + Add
Folderly 5 videos + Add

No InboxStack videos yet. You could help us improve this page by suggesting one.

Supercharge Your Email Deliverability With Folderly

More videos

  • - From 15 to 98% Email Deliverability Rate for Slash | Folderly
  • - New Clients for BeforeHello after Working with Folderly
  • - Delivering Messages to the Inbox for the Kannaco Company | Folderly
  • - Getting stories delivered to the Inbox for PR & Communications company | Folderly

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
InboxStack
Folderly
100% 100%
Reputation Management
0% 0%
0% 0%
Email Marketing
100% 100%
8% 8%
Email
92% 92%
7% 7%
Email Deliverability
93% 93%

User comments

Share your experience with using InboxStack and Folderly. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

InboxStack no reviews yet
Folderly 5.0 · 9 reviews

We have no reviews of InboxStack yet. Be the first one to post

  • Top 14 Email Warm-Up Tools for B2B SaaS
    www.mailwarm.com · Dec 2025

    Folderly: Full deliverability service offering warm-up, remediation, audits, configuration help, and a managed roadmap for recovery from spam placement.

  • Folderly guarantees that our emails are delivered to the inbox
    SaaSHub review
    · Sep 2023

    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...

  • Folderly saves our emails from spam
    SaaSHub review
    · Aug 2023

    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...

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

InboxStack 0 mentions
Folderly 60 mentions

Tracking InboxStack since Jul 2026.

  • Breaking Into Legal Tech
    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
  • Why do businesses always have such long voice mail greetings?
    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
  • Is there somewhere an email client for mac that is not gmail, implements labels and supports IMAP?
    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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Alternatives to InboxStack and Folderly

When comparing InboxStack and Folderly, you can also consider the following products.

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