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Browser Extensions · head to head

Momentum vs Userscripts

Momentum logo

Momentum

Browser Extensions

Personal dashboard for focus and inspiration

From
Free
Rated
-
Full reviewWebsite
Userscripts logo

Userscripts

Browser Extensions

Open-source userscript manager for Safari on Mac and iOS

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Momentum free version lacks advanced task manager integrations available in Plus tier; Userscripts safari cannot let extensions bypass a site's Content Security Policy, so strict sites produce "Refused to execute a script" errors that the @inject-into workaround does not always fix.
  • They diverge on capability: Momentum covers Daily photos, Userscripts covers Built-in script editor.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which Momentum and Userscripts actually diverge.

Attributes where Momentum and Userscripts differ
AttributeMomentumUserscripts
Pricing modelUnknownopen-source
PlatformsChrome, Firefox, Safari, Microsoft Edge, macOS (native app)Safari, macOS, iOS
Founded2013Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Browser Extensions).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Momentum

  • Daily photos
  • Weather widget
  • Todo list
  • Daily focus
  • Chrome support
  • Firefox support
  • Edge support

Only in Userscripts

  • Built-in script editor
  • Standard metadata support
  • GM API
  • Remote script updating
  • iCloud sync
  • Per-page popup

What people use each for

The jobs each tool is most often brought in to do.

Momentum

  • Setting daily focus goals from a browser new tabnot Userscripts
  • Creating focus modes with timers and productivity soundsnot Userscripts
  • Maintaining priority to-do lists with completion trackingnot Userscripts

Userscripts

  • Running userscripts on Safari without paying for Tampermonkeynot Momentum
  • Running userscripts on an iPhone or iPadnot Momentum
  • Writing scripts on a Mac and syncing them to iOSnot Momentum
  • Blocking or restyling site elements Safari content blockers cannot reachnot Momentum
  • Keeping a script library under an open-source licencenot Momentum

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Momentum

  • Free version lacks advanced task manager integrations available in Plus tier
  • Habit tracking and metrics features only available in paid plan
  • Limited customization options in free version compared to premium tier
  • Syncing with external task managers requires Plus subscription

Userscripts

  • Safari cannot let extensions bypass a site's Content Security Policy, so strict sites produce "Refused to execute a script" errors that the @inject-into workaround does not always fix.
  • Apple only. There is no Chrome, Firefox or Edge build, so it cannot be a cross-browser answer.
  • iCloud sync is documented as having delays, which is awkward when editing the same script on two devices.
  • Requires macOS 12 and Safari 14.1, or iOS 15.1, so older Apple hardware is excluded.
  • GPL v3 means a commercial licence is required for non-open-source use, which matters if you are embedding rather than just using it.

Pricing, plan by plan

Momentum

Free
  • FreeFree
    • Daily focus
    • To-do lists
    • Weather and links
  • Momentum Plus$undefined/mo
    • Unlimited Focus Mode
    • Vision board creation
    • Tab Stash functionality

Userscripts

Free
  • FreeFree
    • Full functionality
    • GPL v3 licensed
    • macOS, iOS and iPadOS

Which should you pick?

Choose Momentum if

  • You need daily photos.
  • You want to start without paying.
  • You work on Chrome, Firefox, Safari, Microsoft Edge, macOS (native app).
  • You also want weather widget.
Momentum review

Choose Userscripts if

  • You need built-in script editor.
  • You want to start without paying.
  • You work on Safari, macOS, iOS.
  • You also want standard metadata support.
Userscripts review

Questions people ask

Is Momentum or Userscripts better?
Neither clearly leads. Momentum starts at Free and Userscripts at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Momentum or Userscripts?
Momentum starts at Free and Userscripts at Free.
Does Momentum or Userscripts run on more platforms?
Momentum runs on Chrome, Firefox, Safari, Microsoft Edge, macOS (native app). Userscripts runs on Safari, macOS, iOS.
Can I use Momentum for free?
Both have a free tier, so you can try either at no cost before committing.
What is Momentum best used for?
Momentum is most often used for setting daily focus goals from a browser new tab, creating focus modes with timers and productivity sounds, maintaining priority to-do lists with completion tracking. Of those, setting daily focus goals from a browser new tab and creating focus modes with timers and productivity sounds are not what Userscripts is typically brought in for.
What can Momentum do that Userscripts cannot?
Momentum covers Daily photos, Weather widget, Todo list, Daily focus. Userscripts covers Built-in script editor, Standard metadata support, GM API, Remote script updating.

Answered from the vendors’ own pages

Momentum: Is Momentum free?

Momentum offers a free version with core features like daily focus, to-do lists, weather, and motivational quotes. Premium features are available through Momentum Plus subscription.

Source
Userscripts: Is Userscripts for Safari free?

Yes, free on the App Store and licensed under GPL v3. A commercial licence is required for use in something that is not itself open source.

Source
Momentum: What is Focus Mode in Momentum?

Focus Mode displays your main daily objective on the new tab page to keep you centered on your primary task and reduce distractions throughout your workday.

Source
Userscripts: Does it work on iPhone?

Yes, on iOS and iPadOS 15.1 or later, which makes it one of the few ways to run userscripts on an iPhone.

Source
Momentum: Does Momentum integrate with task managers?

Yes. Momentum Plus integrates with popular task managers including Todoist, Asana, and ClickUp, allowing seamless synchronization of your tasks.

Source
Userscripts: Why do I get "Refused to execute a script" errors?

Safari does not let extensions bypass a site's Content Security Policy the way other browsers do. The documented workaround is changing the script's @inject-into setting, though it does not resolve every case.

Source
Momentum: What platforms does Momentum support?

Momentum is available on Chrome, Firefox, Safari, and Microsoft Edge as a browser extension, with a native macOS app also available.

Source
Userscripts: Do my scripts sync between Mac and iPhone?

Yes, over iCloud, though the project notes the sync can be delayed rather than immediate.

Source
Momentum: Does Momentum Plus include soundscapes?

Yes. Momentum Plus subscribers get access to Focus Mode soundscapes designed for concentration and deep work, along with other premium features.

Source
Userscripts: What are the system requirements?

macOS 12 or later with Safari 14.1 or later, or iOS and iPadOS 15.1 or later.

Source
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