Software Alternatives & Startups

Relay GTD VS StackMail

Compare Relay GTD VS StackMail and see what are their differences

Relay GTD

A complete GTD system with guided weekly and daily reviews, on iPhone, iPad, Mac, Android, Windows and the web.

Rating
0 reviews
Pricing
Paid Free trial €5 / Monthly (Pro)
StackMail

Stackmail is a webmail service whereby you can log in to your emails from any browser at any time!

Rating
0 reviews
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.

Which is more popular?

Project Management popularity
100% vs 0%
alternatives listed
17 vs 1

Base details

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

Relay GTD
StackMail
Website relaygtd.com stackmail.com
Pricing
Paid Free trial €5 / Monthly (Pro) Official pricing
—
Platforms
Android iOS MacOS Windows Web +2
—
Company Startup from Switzerland · 2026 —
Listed in

About Relay GTD and StackMail

In their own words, as submitted to SaaSHub.

Relay GTD
StackMail

Relay is a task, project and goal manager built for Getting Things Done. Capture anything into an Inbox, clarify each item with a step-by-step wizard, and see only the next actions that fit where you are, the time you have and your energy. The weekly review is a guided sequence of twelve steps,...

Read more about Relay GTD

No description of StackMail yet.

Features and specs

What each product offers, as listed by its team.

Relay GTD 12 features
StackMail 5 features
  • Guided weekly review
    Twelve steps in order, from clearing your head to the final sweep, with trigger lists and a record of how long each review took.
  • Daily review
    Five minutes to shape the day: your calendar, your shortlist and what fits the time you have.
  • Clarify wizard
    One item at a time through the GTD questions, into a next action, project, waiting for, someday/maybe, reference or the bin.
  • Contexts, energy and time
    Every action can carry a context, an energy level and a time estimate, and Engage filters by all three.
  • Horizons of focus
    Projects link up to areas, goals, vision and purpose, and the weekly review flags projects linked to nothing.
  • Sequential projects
    A project can run its steps in order, showing only the next one until the one before it is done.
  • Capture
    Quick add and email to Inbox on every device, the share sheet on Android, iPhone and iPad, and a capture shortcut on Mac and Windows.
  • Widgets
    Home-screen widgets on Android, iPhone and iPad, and desktop widgets on Mac.
  • Integrations
    Two-way sync with Google Tasks, Microsoft To Do, Todoist, Notion and Linear, plus Apple Reminders on Apple devices. Google and Outlook calendars, and Apple Calendar on Apple devices.
  • Imports
    Bring your system across from Nirvana or Todoist.
  • Platforms
    Native apps for iPhone, iPad, Mac, Android and Windows, plus the web, all on one account.
  • Privacy
    Hosted in Switzerland, with no analytics and no ads. Export your data as JSON whenever you want.
  • Privacy-Focused
    StackMail emphasizes data privacy and security, offering encrypted email services without scanning user data for advertising purposes, appealing to privacy-conscious businesses.
  • Business-Oriented Features
    Designed specifically for businesses, it includes features like custom domain email, collaborative tools, calendars, and contact management tailored for professional use.
  • Competitive Pricing
    StackMail offers competitively priced plans compared to some larger email providers, making it accessible for small to medium-sized businesses.
  • No Ads
    Unlike some free email services, StackMail does not display ads to users, providing a cleaner and more professional email experience.
  • Custom Domain Support
    Users can easily set up email addresses with their own custom domain names, enhancing brand professionalism and consistency.

Possible disadvantages

  • Limited Brand Recognition
    As a newer or lesser-known provider compared to Google Workspace or Microsoft 365, StackMail may lack the trust and reputation that larger providers have established.
  • Fewer Third-Party Integrations
    Compared to major email service providers, StackMail may offer fewer integrations with third-party apps and services, limiting its versatility for some businesses.
  • Limited Advanced Features
    It may not offer the same breadth of advanced productivity and collaboration tools that come bundled with larger platforms like Microsoft 365 or Google Workspace.
  • Smaller User Community
    Due to a smaller user base, there may be fewer community resources, third-party tutorials, or troubleshooting forums available online.
  • Uncertain Long-Term Support
    As a smaller company, there might be concerns regarding the long-term viability, updates, and continued support of the service compared to more established providers.

Analysis

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

Relay GTD
StackMail

No analysis of Relay GTD yet.

Overall verdict

  • StackMail is a solid choice for individuals and businesses seeking a secure, ad-free, privacy-focused email hosting solution with reliable features at a competitive price point.

Why this product is good

  • Ad-free email experience with no data mining or tracking of user content
  • Custom domain email hosting suitable for professional and business use
  • Competitive pricing compared to major enterprise email providers
  • Includes essential productivity tools like calendar, contacts, and webmail access
  • Strong emphasis on privacy and security in data handling
  • Straightforward setup process for custom domains

Recommended for

  • Small to medium-sized businesses wanting professional email addresses
  • Privacy-conscious individuals and organizations
  • Startups looking for cost-effective email hosting
  • Users seeking an alternative to Google Workspace or Microsoft 365
  • Freelancers and entrepreneurs needing custom domain email

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
Relay GTD
StackMail
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Relay GTD and StackMail.

What makes your product unique?

Relay GTD's answer

Relay is built only for Getting Things Done, and it runs the whole method on every device: native apps for iPhone, iPad, Mac, Android and Windows, plus the web. The weekly review is a guided twelve-step sequence rather than a reminder to review, the Clarify wizard asks the GTD questions one item at a time, and projects link up to areas, goals, vision and purpose. Most GTD apps either run only on Apple devices or leave the method for you to build out of lists and tags.

Why should a person choose your product over its competitors?

Relay GTD's answer

If your devices are not all Apple, Relay gives you one GTD system across Windows, Android and the Apple apps. If you keep skipping the weekly review, Relay walks you through it step by step. It syncs both ways with Google Tasks, Microsoft To Do, Todoist, Notion and Linear, and with Apple Reminders on Apple devices, so the apps you share with other people can stay as ways in. Everything lands in the Inbox first and nothing is filed for you. If you want a free plan, a one-time price or team features, other apps will suit you better.

How would you describe the primary audience of your product?

Relay GTD's answer

People who practise Getting Things Done, or want to, and use more than one kind of device: a Windows PC at work and an iPhone, or an Android phone and a Mac. Many have tried GTD in a general task app and found themselves maintaining the system instead of using it. Relay is for individuals; it has no shared lists or team features.

What's the story behind your product?

Relay GTD's answer

Relay is built by one developer in Switzerland. The best-known GTD apps run only on Apple devices, and the cross-platform ones leave the method for you to assemble from lists and tags. Relay set out to be a complete GTD system that works the same on every device, with the weekly review built in. It was released in 2026, on the web first, then on Android, iPhone, iPad, Mac and Windows.

Which are the primary technologies used for building your product?

Relay GTD's answer

Flutter and Dart for the apps on all six platforms from one codebase. Firebase (Firestore, Authentication, Cloud Storage and Hosting) and Cloud Functions in TypeScript, all in Google Cloud's Zurich region. Swift for the Apple widgets and share extension, and Kotlin for the Android widgets. RevenueCat with the App Store, Google Play and Stripe for subscriptions, Mailgun for email to Inbox, and Google's Gemini API for the optional AI prompts.

User comments

Share your experience with using Relay GTD and StackMail. For example, how are they different and which one is better?

Log in or Post with

Alternatives to Relay GTD and StackMail

When comparing Relay GTD and StackMail, you can also consider the following products.