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Productivity · head to head

Capacities vs Memberstack

Capacities logo

Capacities

Productivity

A studio for your mind with object-based notes

From
Free
Rated
-
Full reviewWebsite
Memberstack logo

Memberstack

Productivity

Add memberships and logins to any website

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Capacities pro plan pricing not prominently displayed on website; Memberstack basic and Professional tiers include transaction fees of 4% and 2% respectively
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Capacities and Memberstack actually diverge.

Attributes where Capacities and Memberstack differ
AttributeCapacitiesMemberstack
Pricing modelUnknownsubscription
PlatformsWeb, macOS, Windows, Linux, iOS, AndroidWeb
Founded2020Unknown

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

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 Capacities

  • Object-based notes
  • Daily notes
  • Properties and relations
  • Graph view
  • AI assistant
  • Readwise
  • Web clipper
  • GDPR

Only in Memberstack

Nothing recorded that Capacities does not also cover.

What people use each for

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

Capacities

  • Productivitynot Memberstack
  • Collaborationnot Memberstack
  • Task managementnot Memberstack
  • Organizationnot Memberstack

Memberstack

  • Launching course platforms without custom backendnot Capacities
  • Building subscription services with Webflow and paymentnot Capacities
  • Gating content without writing codenot Capacities
  • Managing password resets and two-factor authenticationnot Capacities
  • Processing Stripe billing automaticallynot Capacities

Where each one falls short

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

Capacities

  • Pro plan pricing not prominently displayed on website
  • Smaller community and ecosystem compared to Notion or Obsidian
  • Limited third-party integration marketplace

Memberstack

  • Basic and Professional tiers include transaction fees of 4% and 2% respectively
  • Annual billing required for discounts; monthly pricing is higher
  • Webflow community builders receive Basic plan free but locked to that tier

Pricing, plan by plan

Capacities

Free
  • FreeFree
    • Unlimited spaces and objects
    • Device synchronization
    • Unlimited custom object types
  • Pro$10/month
    • Everything in Free
    • Unlimited notes
    • Advanced graph views
  • Believer$149.88/year
    • Everything in Pro
    • Beta access to new features

Memberstack

Free
  • Basic$29/month
    • Up to 1,000 members
    • 4% transaction fee
    • $25/month with annual billing
  • Professional$49/month
    • Up to 5,000 members
    • 2% transaction fee
    • $39/month with annual billing
  • Business$99/month
    • 10,000+ members
    • 0.9% transaction fee
    • $79/month with annual billing
  • Established$499/month
    • 10,000+ members
    • Zero transaction fees
    • $399/month with annual billing

Which should you pick?

Choose Capacities if

  • You need object-based notes.
  • You want to start without paying.
  • You work on Web, macOS, Windows, Linux, iOS, Android.
  • You also want daily notes.
Capacities review

Choose Memberstack if

  • You want to start without paying.
Memberstack review

Questions people ask

Is Capacities or Memberstack better?
Neither clearly leads. Capacities starts at Free and Memberstack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Capacities or Memberstack?
Capacities starts at Free and Memberstack at Free.
Does Capacities or Memberstack run on more platforms?
Capacities runs on Web, macOS, Windows, Linux, iOS, Android. Memberstack runs on Web.
Can I use Capacities for free?
Both have a free tier, so you can try either at no cost before committing.
What is Capacities best used for?
Capacities is most often used for productivity, collaboration, task management, organization. Of those, productivity and collaboration are not what Memberstack is typically brought in for.
What can Capacities do that Memberstack cannot?
Capacities covers Object-based notes, Daily notes, Properties and relations, Graph view.

Answered from the vendors’ own pages

Capacities: What platforms does Capacities support?

Capacities is available on Web, Desktop (macOS, Windows, Linux), and Mobile (iOS, Android), allowing seamless work across devices.

Source
Memberstack: What are Memberstack's transaction fees?

Memberstack's transaction fee varies by tier: Basic plan charges 4% per transaction, Professional charges 2%, Business charges 0.9%, and Established tier charges zero transaction fees.

Source
Capacities: Does Capacities have a free plan?

Yes, Capacities offers a free plan with unlimited spaces, objects, and blocks, device synchronization, unlimited custom object types, and 5GB media uploads total.

Source
Memberstack: Does Memberstack offer a free trial or testing mode?

Yes, Memberstack offers an unlimited free trial in test mode requiring no credit card. Users maintain full feature access at no cost until their site launches with real members.

Source
Capacities: What AI features does Capacities include?

Capacities includes an AI Assistant available on Pro and higher plans for brainstorming, summarization, and contextual Q&A about your notes.

Source
Memberstack: What discounts does Memberstack offer?

Memberstack offers 50% discount for non-profits, special pricing for young professionals (4% fees), and $249/month with zero fees for startups under $1M raised. Webflow community builders receive the Basic plan free. 30-day money-back guarantee available with full refund.

Source
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