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Mem vs SortMyThoughts

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. Mem starts at $12, SortMyThoughts at $9.99. Both have a free tier. Only Mem ships a public API.

MemNotes app with an agent that files captures, tracks commitments and briefs you before meetingsSortMyThoughtsAI note and task organizer that turns scattered notes into daily summaries and suggested actions.

Side by side

FactMemSortMyThoughts
CategoryNote-taking & Second BrainNote-taking & Second Brain
Pricing modelFreemiumFreemium
Starts at$12 month$9.99 month
Public APIYesNo
PlatformsWeb, macOS, Windows, iOSWeb
Last verifiedSep 6, 2026Sep 1, 2026

What our research says

Mem

Mem has moved past 'self-organizing notes' into an agent that actually nags you about commitments, which is the part most note apps never deliver. The catch is the ladder: the free tier is tiny, the useful proactive behavior is fenced into a $99/month plan, and sign-in is currently Google-only.

Pros

  • Agent tracks tasks and commitments across notes, not just search
  • Native apps on web, Mac, Windows and iOS with voice capture
  • Pro at $12/month includes API and email-in access
  • Proactive tier reaches you on Slack, iMessage and WhatsApp

Cons

  • Free plan (25 notes/month) is too small to evaluate the agent seriously
  • The headline proactive features cost $99/month
  • Google-only authentication; no Android app listed

SortMyThoughts

SortMyThoughts is a solo-built note organizer still finding its feet in public beta. It is worth trying if the free 300-message tier covers your note volume, but some features advertised on the homepage are listed as roadmap items rather than shipped.

Pros

  • Free tier with 300 AI messages a month and no credit card
  • Daily summary and suggested actions save manual triage
  • Syncs across devices through a single web app

Cons

  • Built and maintained by one developer, so continuity risk is higher than with a funded team
  • Some advertised features are listed as roadmap items, not shipped yet
  • No native mobile app, only a responsive web app

Which one fits

Choose Mem if you need

  • Founders and consultants juggling many threads without an assistant
  • People who capture by voice and want automatic filing
  • Users who want reminders pushed into Slack or iMessage rather than another app

Choose SortMyThoughts if you need

  • People who want one inbox for scattered notes
  • Users comfortable with an early-stage beta product
  • Freelancers tracking daily priorities

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