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Mem vs Stacks

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Entry price
The same for both — $9/mo
Free plan
Only Mem (Stacks has paid plans only)
Public API
Mem has one; not confirmed by us for Stacks
Higher Trust score
Mem — 98 vs 91 for Stacks
Best fit
Mem: Founders and managers who dump meetings, voice memos and clips into one place and want them filed · Stacks: Researchers and writers whose sources are scattered across apps

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

MemNotes app with an agent that files captures, tracks tasks and commitments and nudges you before they slipStacksOne place for notes, bookmarks, links and files, with search that works on meaning rather than filenames.

Side by side

FactMemStacks
CategoryNote-taking & Second BrainNote-taking & Second Brain
Pricing modelFreemiumPaid
Starts at$9/mo$9/mo
Public APIYesNot confirmed
Trust score98 / 10091 / 100
PlatformsWeb, macOS, Windows, iOS, APIWeb, Chrome extension, iOS, Android
CompanyMem Labs, Inc.BetterStacks India Pvt Ltd
Last verifiedOct 15, 2026Oct 16, 2026

What our research says

Mem

Mem is one of the few note apps where the agent actually follows up on what you wrote, tracking open tasks and nudging you, rather than only answering questions. The pricing is now a quota ladder: Plus at $9 is cheap but caps you at 50 messages and 50 new notes a month, so anyone who captures daily will land on Pro at $29 or above.

Pros

  • Agent tracks tasks and projects across notes and sends proactive nudges
  • Voice capture and bot-free meeting notes feed the same workspace
  • Developer API and MCP server for connecting other tools
  • Markdown export of notes and collections

Cons

  • Every tier caps new notes and agent messages per month, so cost scales with how much you write
  • Routines and connections start only at the $29 Pro tier
  • No Android app on the download page

Stacks

The pitch is consolidation, and it is aimed at the real problem: the thing you saved is in one of six apps and you cannot remember which. Capture surfaces are covered properly — Chrome extension, iOS, Android, web — which is where most second-brain tools fall down. What you are betting on is the search actually finding things, and there is no free tier to test that with, only a refund window.

Pros

  • Notes, bookmarks, links and files in one index rather than four tools
  • Capture from Chrome extension, iOS, Android and web
  • Shared workspaces with unlimited users from the $29 tier
  • 30-day money-back guarantee on every plan
  • Named Indian legal entity behind it

Cons

  • No free tier — the cheapest way in is $9 a month or a refund request
  • No public API, so getting data out programmatically is unclear
  • Storage caps of 50GB and 500GB matter if you file large documents
  • Search quality is the whole product and cannot be judged before paying

Which one fits

Choose Mem if you need

  • Founders and managers who dump meetings, voice memos and clips into one place and want them filed
  • Consultants who need commitments from calls tracked without a meeting bot
  • Mac and Windows users who want a capture shortcut that works from any app

Choose Stacks if you need

  • Researchers and writers whose sources are scattered across apps
  • Teams wanting shared collections of links and files
  • People who clip constantly from the browser and from mobile

Mem vs Stacks: the questions people ask

Is Mem cheaper than Stacks?

Both publish the same entry price, $9/mo. The difference is what each plan includes, which the fact table above sets side by side.

Does Mem or Stacks have a free tier?

Mem has a free tier; Stacks has paid plans only.

Which has a public API, Mem or Stacks?

Mem ships a public API, as of our last verification. A public API for Stacks is not confirmed by us — check its developer docs before you plan an integration.

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