Trillion vs Mem
An AI notes app and agent that organizes what you save and checks in when something needs you.
Every AI you use, working on the same things
- Bring your own AI. ChatGPT, Claude, Codex, Gemini or any AI you connect reads and adds to the same decisions, files, lists and people.
- Work you can follow. Each job shows who asked, which AI took it, and what is moving, finished or stuck.
- Hand it on. One AI can pass a job to another, and the next one starts from what the first one kept.
Decisions kept with their reasons
- One question at a time. Your AI walks a hard choice through the questions that matter, then you choose.
- Kept with the why. Each decision keeps its options, its reasons, its next step and how you will know it worked.
- Lists for anything. A CRM, a pipeline or any table, sorted, filtered and kept up to date by the AI you use.
Shared spaces for the people you work with
- One place per pursuit. Messages, files and decisions for a project sit together, and everyone in it sees the same thing.
- Their AIs too. Each person brings their own AI into the space, and the AIs work from the same record.
- Share a link. Send one file, one list row or a whole space, and stop sharing whenever you want.
Trillion and Mem, side by side
| What it does | Trillion | Mem |
|---|---|---|
| Works with the AI you already use | Yes | Not stated |
| Keeps decisions with their reasons | Yes | Not stated |
| Lists, a CRM or any table | Yes | Not stated |
| Files and recordings | Yes | Yes |
| Shared spaces with other people | Yes | Not stated |
| A marketplace of tools | Yes | Not stated |
| Publishes sites and pages | Yes | Not stated |
| Workflows, rules and schedules | Yes | Yes |
| Hands work from one AI to another | Yes | Not stated |
| Phone app | Yes | Yes |
| Free plan | Yes | Yes |
Checked 2026-10-12 on Mem's own pages. A dash means their pages show it does not; "Not stated" means their pages do not say.
What Mem does well
- Detects tasks and projects in your notes automatically
- Voice mode, calendar, web clipper and chat
- Messages to Mem through outside channels such as WhatsApp or email
Why pick Trillion
- Mem's agent works inside Mem; Trillion connects the AIs you already use
- Trillion keeps decisions with their reasons and runs tools to get the work done
- Trillion adds shared spaces with other people's AIs and site publishing
Pick the tool that fits the work in front of you
Pick Mem if
You want a notes app whose own AI tracks your follow-ups.
Pick Trillion if
You want a shared memory product for several AI apps you already use.
Both prices, as published
Trillion
- 1x'er: Free. Testing the waters: your AI walks a few decisions a month through the method; nothing is kept.
- Trillion X'er: $50/month per spot, plus measured usage at the listed rates with a small margin. One plan for yourself, a group or a company. The first 7 days are free.
- One-on-one with Jibran: Two calls a month with Jibran for 3 months, with Trillion X'er included. Apply, and if it is a fit, Jibran tells you the price.
Checked 2026-10-12. Prices change, so check Mem's own page before you buy.
Trillion vs Mem, common questions
Is Mem free?
Mem has a free plan. As published on 2026-10-12: Mem Plus: $9 / month (Mem Pro $29 / month)
Does Mem work with the AI I already use?
Its pages do not say. Trillion has no AI of its own: you connect ChatGPT, Claude, Codex or any AI you use, and each one reads and adds to the same work.
Should I pick Trillion or Mem?
Pick Mem if you want a notes app whose own AI tracks your follow-ups. Pick Trillion if you want a shared memory product for several AI apps you already use.
How much does Trillion cost?
Trillion X'er: $50/month per spot, plus measured usage at the listed rates with a small margin. One plan for yourself, a group or a company. The first 7 days are free.
Keep comparing
- Trillion vs EvernoteA long-running notes app with tasks, calendar, web clipper and AI search.
- Trillion vs HeptabaseA visual notes app with whiteboards and cards for research and learning.
- Trillion vs Fireflies.aiAn AI notetaker that records, transcribes and searches meetings.
- Trillion vs Otter.aiAI meeting transcription with an agent that joins calls and writes shared notes.
- Trillion vs CapacitiesAn object-based notes app where people, books, ideas and meetings are typed objects.
- Trillion vs Mem0A memory layer developers add to AI apps so they remember users.
Bring the AI you already use
Connect ChatGPT, Claude, Codex or any AI you use. Trillion keeps your decisions, files, lists and people, so every AI you open carries on from the same place.