Software Alternatives & Startups

Relay GTD VS Nullstack

Compare Relay GTD VS Nullstack 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)

Full-stack Javascript Components for one-dev armies

Rating
0 reviews
Pricing
Open source
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?

GTD popularity
100% vs 0%
alternatives listed
22 vs 1

Base details

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

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

About Relay GTD and Nullstack

In their own words, as submitted to SaaSHub.

Relay GTD
Nullstack

Relay is a task, project and goal manager built for Getting Things Done. You capture anything into one Inbox, and Relay asks the questions GTD asks to clarify each item: is it a next action, a project, something you are waiting for, or something for later? Relay never files anything for you....

Read more about Relay GTD

No description of Nullstack yet.

Features and specs

What each product offers, as listed by its team.

Relay GTD 12 features
Nullstack 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.
  • Full-Stack Capabilities
    Nullstack allows for the development of both client-side and server-side functionalities within a single project, providing a more unified development process.
  • Seamless SSR
    It offers built-in support for server-side rendering, improving performance and SEO without the need for complex configurations.
  • Zero tooling
    Nullstack provides a setup that requires minimal configuration and does not depend heavily on additional tools, simplifying the development workflow.
  • Component-based Architecture
    Promotes the use of components, encouraging modularity and reusability of code, which can improve maintainability and scalability of applications.
  • Hot Module Replacement
    Supports HMR, allowing developers to see immediate changes in their applications without refreshing the entire page, improving development efficiency.

Possible disadvantages

  • Smaller Community
    Compared to more established frameworks, Nullstack has a smaller community, which can result in fewer resources and third-party tools.
  • Learning Curve
    Developers need to learn the Nullstack-specific ways of handling both front-end and back-end development, which might be a hurdle for those accustomed to other frameworks.
  • Limited Ecosystem
    Due to its newer and less widely adopted nature, there might be limited third-party libraries and plugins readily available compared to more mature frameworks.
  • Rapidly Evolving
    Being relatively new and possibly evolving quickly, developers might face breaking changes more frequently compared to more established technologies.

Videos

Walkthroughs and reviews on video.

Relay GTD 0 videos + Add
Nullstack 3 videos + Add

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

Full-stack with Nullstack - Part 3

More videos

  • - nullstack ship tracker
  • - Como fazer um Hello World com Nullstack passo a passo

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
Nullstack
100% 100%
GTD
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Relay GTD and Nullstack.

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

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Alternatives to Relay GTD and Nullstack

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