Software Alternatives, Accelerators & Startups

Stacky VS MailDeck

Compare Stacky VS MailDeck and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Stacky logo Stacky

Simple app enhancing windows task bar functionality with stacks of shortcuts.

MailDeck logo MailDeck

The world's most reliable inbox architecture for cold email teams sending 100k+ monthly. Zero configuration. Total deliverability control.
  • Stacky Landing page
    Landing page //
    2023-10-18
  • MailDeck
    Image date //
    2026-03-15
  • MailDeck
    Image date //
    2026-03-15
  • MailDeck
    Image date //
    2026-03-15

Stacky

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-

MailDeck

$ Details
$99.0 / Monthly
Platforms
Instantly.ai Apollo.io Smartlead.ai
Startup details
Country
United States
State
California
Founder(s)
Sabo Nagy
Employees
1 - 9

Stacky features and specs

  • Open Source
    Stacky is open source, allowing developers to contribute to and enhance the project according to their needs.
  • Community Support
    As a GitHub-hosted project, it benefits from community collaboration, where users can share improvements, report issues, and request new features.
  • Free to Use
    Being an open-source tool, Stacky can be used for free, which is advantageous for developers and companies looking to cut costs.
  • Customizable
    Developers have the ability to fork the project and customize it to better fit their specific use cases and requirements.

Possible disadvantages of Stacky

  • Lack of Documentation
    Stacky may not have comprehensive documentation, making it challenging for new users to understand and implement the tool effectively.
  • Potential for Bugs
    As with many open-source projects, there may be less rigorous testing, leading to the potential presence of unresolved bugs or issues.
  • Limited Features
    Depending on the project's current state, it may have fewer features compared to more established alternatives, limiting its utility for some use cases.
  • Maintenance Uncertainty
    The project's future updates and maintenance depend on the community or the project owner's interest, which could be inconsistent.

MailDeck features and specs

  • 100 inboxes per domain
    1 Outlook tenant = 100 inboxes
  • Automated DNS configuration
    DKIM, SPF, and DMARC

Analysis of MailDeck

Overall verdict

  • I don't have verified, up-to-date information about MailDeck (maildeck.co) to give you a reliable assessment. I'm not able to confirm details about its features, pricing, reliability, or user reputation, so I can't responsibly claim it is 'good' or otherwise.

Why this product is good

  • I don't have confirmed data on this specific product's performance, features, or customer reviews
  • Product details and quality can change over time, and I cannot verify current information
  • Making claims without verified evidence could be misleading

Recommended for

  • Anyone considering MailDeck should check recent independent reviews (e.g., G2, Trustpilot, Capterra)
  • Look for user testimonials and case studies directly on maildeck.co
  • Consider reaching out to their support team with specific questions about your use case
  • Try any free trial or demo they offer before committing

Stacky videos

Vertical Gardening with Mr. Stacky set up, seed planting, and review.

More videos:

  • Review - Vertical Gardening with Mr. Stacky
  • Review - NOOB vs PRO vs HACKER in Stacky Dash

MailDeck videos

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

Add video

Category Popularity

0-100% (relative to Stacky and MailDeck)
Productivity
100 100%
0% 0
Cold Outreach
0 0%
100% 100
Note Taking
100 100%
0% 0
Email Outreach
0 0%
100% 100

Questions & Answers

As answered by people managing Stacky and MailDeck.

Who are some of the biggest customers of your product?

MailDeck's answer:

B2B SaaS companies running outbound sales Lead generation agencies managing multiple client campaigns Recruitment firms doing high-volume candidate outreach Growth agencies handling outbound for portfolio companies Sales teams at fintech and real estate companies

What makes your product unique?

MailDeck's answer:

MailDeck combines Google Workspace, Microsoft 365, and SMTP providers into a single infrastructure platform. Unlike tools that only handle one provider, MailDeck gives you unified management with automated DNS setup - no manual configuration of SPF, DKIM, or DMARC. It's built specifically for cold email at scale, not repurposed from marketing tools.

Why should a person choose your product over its competitors?

MailDeck's answer:

MailDeck focuses on reliability at high volume. Where other providers start having deliverability issues as you scale, MailDeck maintains consistent inbox placement even at millions of emails per month. The zero-configuration setup means you're operational in minutes. Plus, it integrates with any sequencer you're already using.

How would you describe the primary audience of your product?

MailDeck's answer:

B2B outbound teams who send at scale - SDRs, sales teams, lead generation agencies, growth agencies, and recruitment firms. Typically teams sending 100K+ emails per month who've outgrown basic Google Workspace setups and need infrastructure that won't collapse under volume.

Which are the primary technologies used for building your product?

MailDeck's answer:

MailDeck integrates directly with Google Workspace and Microsoft 365 APIs, along with custom SMTP infrastructure. The platform handles automated DNS management, real-time deliverability monitoring, and smart routing across multiple providers.

User comments

Share your experience with using Stacky and MailDeck. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Stacky seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Stacky mentions (1)

  • My multi-monitor desktop setup (not pretty but useful)
    Programs (mostly free/sharewares): Google desktop apps: Google Chrome or MS Edge or whatever you use as a browser. And if you're lazy: https://chromeless.app/ to create the apps. Microsoft PowerToys: https://learn.microsoft.com/en-us/windows/powertoys/ Total Commander: https://www.ghisler.com/ ContaCam: https://www.contaware.com/contacam.html Open Hardware Monitor: https://openhardwaremonitor.org/ Stickies:... Source: almost 3 years ago

MailDeck mentions (0)

We have not tracked any mentions of MailDeck yet. Tracking of MailDeck recommendations started around Mar 2026.

What are some alternatives?

When comparing Stacky and MailDeck, you can also consider the following products

RocketDock - RocketDock is a Mac OS X dock clone.

Infraforge - Private Cold Email Infrastructure Sorted In Minutes

MaxLauncher - A simple tabbed application launcher.

Primeforge - Google & Microsoft Mailboxes For Cold Email

Winstep Nexus - The Winstep Nexus Dock is a FREE* professional dock for Windows. With Nexus, your most frequently used applications are only a mouse click away - and Nexus turns working with your computer into a fun and exciting experience.

Spark Mail - Spark helps you take your inbox under control. Instantly see whatโ€™s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues