Mem Agent vs Second Brain
Mem Agent
mem.aiSecond Brain
secondbrainnotes.appSide by side
| Figure | Mem Agent | Second Brain |
|---|---|---|
| Price from | $9/mo | $3.33/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | Yes |
| API | Yes | — |
| Plans published | 10 | 3 |
| Spec score · AI Note-Taking Apps | 9.2 (#4) | 7.5 (#37) |
| Maker | The privacy policy identifies the maker as Mem Labs, Inc., doing business as Mem. | The app is described as developed by one person, Gökhan Çelikkaya. |
| Privacy | Mem says it does not sell user data, show third-party ads, or use personal information or notes to train generalized AI or machine-learning models. | The maker says notes are isolated per account, AI processing requires explicit consent before the first note is processed, and notes are not used to train AI models. |
| Product | Mem describes itself as an AI thought partner that captures ideas, meetings, and research and helps users retrieve them when needed. | Second Brain is an iPhone notes app that lets users capture thoughts and ask questions about them later in plain language. |
Plans
Mem Agent
- MemPriced on request
- Mem Plus$9 a month
- Mem Pro$29 a month
- Mem Pro 2×$49 a month
- Mem Pro 5×$99 a month
- Mem Pro 10×$149 a month
- Mem Pro 20×$199 a month
- Extra Usage$50 a month
- MemFree
- Mem FreeFree
In their own words
Mem Agent
Mem Agent is an AI thought partner for capturing ideas, meetings and research, then retrieving them when needed. Mem Chat can answer workspace questions, create or update notes, organize them and draft content using workspace context. Deep Search accepts natural-language descriptions of what a user wants to find. Voice Mode records and transcribes meetings or spoken thoughts into structured notes. The Chrome extension captures and summarizes webpages and YouTube videos, organizes clips into collections and lets users edit notes from its popup; it is currently available only for Google Chrome. Mem connects to Google Calendar and Microsoft Outlook, but only displays meetings with two or more guests. It can connect to Claude to search Mem knowledge, save conversations as notes, update documents and organize a workspace. The free plan includes 25 messages and 25 new notes per month, tracking for 25 notes, 15 open tasks and projects, and three Voice Mode hours. Mem Plus costs $9 a month. Content is encrypted in transit and at rest, but is unencrypted for AI processing by trusted third-party vendors. Mem supports one-click exports of notes and collections as Markdown files.
Second Brain
Second Brain has no write-up on Specifiction yet; its figures are above.