Software Alternatives, Accelerators & Startups

TheSecondBrain.dev VS Splitcat

Compare TheSecondBrain.dev VS Splitcat and see what are their differences

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TheSecondBrain.dev logo TheSecondBrain.dev

One Brain. Everywhere you work. One memory for Claude, ChatGPT, Cursor and every AI tool you use. Runs in your own Cloudflare account. Open source.

Splitcat logo Splitcat

Simple file splitting and merging application with predefined presets for popular apps.
Not present

You use AI every day. A year of it should add up to something, and right now it doesn't. Every new chat starts from zero.

Second Brain is a memory layer that runs in your own Cloudflare account. Claude, ChatGPT, Cursor, Windsurf and any other MCP client read and write the same store, so what you work out in one tool is there in the next one.

Getting things in

  • Connect what you already use: Obsidian, Notion (email and calendar ship with 2.1)
  • Save in the moment: Chrome extension, iOS Shortcuts, CLI, REST /capture
  • Or just let the assistant store things as you talk, which is how most of it happens

Getting things back

Recall is semantic, not keyword. Memories link to each other, so a multi-hop search surfaces the reasoning behind a decision, not just the decision.

Entries carry a status (canonical, draft, deprecated) so an agent knows which version of a fact to trust.

Contradictions get flagged for a human to settle instead of quietly overwritten.

Where it lives

Your Cloudflare account: Workers, D1 and Vectorize.

Typical personal use sits inside Cloudflare's free tier. Open source on GitHub. No account with us, and nothing routes through our infrastructure.

Setup

Signed desktop app for Mac and Windows, one-click Cloudflare deploy, or clone the repo and run wrangler.

  • Splitcat Landing page
    Landing page //
    2025-10-21

TheSecondBrain.dev

$ Details
Release Date
2026 May
Startup details
Country
United States
State
GA
Founder(s)
Rahil Pirani

TheSecondBrain.dev features and specs

  • Works with
    Claude, ChatGPT, Cursor, Windsurf, Codex, any MCP client
  • Where it runs
    Your own Cloudflare account (Workers, D1, Vectorize)
  • Recall
    Semantic search with multi-hop graph expansion, not keyword
  • Memory Status
    Entries marked canonical, draft or deprecated so agents know what to trust
  • Contradiction Detection
    Conflicts are flagged for you to settle, never auto-overwritten
  • Capture methods
    Chrome extension, iOS Shortcuts, CLI, REST /capture, MCP tools
  • Integrations
    Obsidian, Notion (email and calendar ship with 2.1)
  • Setup
    Signed Mac and Windows installer, one-click Cloudflare deploy, or wrangler
  • Open Source
    Yes, github.com/rahilp/second-brain-cloudflare
  • Cost
    Typical personal use fits inside Cloudflare's free tier
  • Data Access
    No account with us, nothing routes through our infrastructure

Splitcat features and specs

  • User-Friendly Interface
    Splitcat offers an intuitive and easy-to-navigate interface that allows users to quickly understand and access its features without a steep learning curve.
  • Efficient Session Management
    The platform provides robust session management tools which enable seamless switching and excellent control over shared sessions, enhancing collaboration efficiency.
  • Customization Options
    Splitcat provides a variety of customization options that allow users to tailor their experience according to their preferences, improving user satisfaction.
  • Cross-Platform Support
    The service supports multiple operating systems, enabling users to collaborate efficiently across various devices without compatibility issues.
  • Real-time Collaboration
    It facilitates real-time collaboration, allowing multiple users to interact and work together simultaneously, improving productivity.

Possible disadvantages of Splitcat

  • Limited Free Features
    The free version of Splitcat may have limitations on features and usage, potentially requiring users to upgrade to paid plans for full access.
  • Performance Issues
    Some users might experience performance lags or connectivity issues during intense collaborative sessions, affecting the overall user experience.
  • Security Concerns
    Users might have concerns regarding data privacy and security, especially when dealing with sensitive information during shared sessions.
  • Dependence on Internet Connection
    Splitcat requires a stable and fast internet connection to function optimally, which can be limiting for users with poor connectivity.
  • Learning Curve for Advanced Features
    While base functionality is straightforward, some users might find advanced features slightly challenging to master without adequate support or documentation.

Analysis of Splitcat

Overall verdict

  • Splitcat appears to be a lightweight, user-friendly tool for splitting expenses, making it a solid choice for those who need a simple way to share and track group costs without unnecessary complexity.

Why this product is good

  • Simple and intuitive interface that lowers the learning curve for new users
  • Focused on the core task of splitting expenses without bloated features
  • Likely free or low-cost, making it accessible for casual and everyday use
  • Helpful for quickly settling shared bills and keeping track of who owes what

Recommended for

  • Groups of friends splitting bills for trips, dinners, or events
  • Roommates managing shared household expenses
  • Anyone needing a quick, no-fuss expense-sharing tool
  • Casual users who prefer simplicity over feature-heavy finance apps

TheSecondBrain.dev videos

The Same Memory, Across Every Al Tool | Second Brain Demo

More videos:

  • Demo - How to Set Up Second Brain Desktop App in 2 Minutes

Splitcat videos

No Splitcat videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to TheSecondBrain.dev and Splitcat)
AI Memory
100 100%
0% 0
Cloud Storage
0 0%
100% 100
AI
100 100%
0% 0
Note Taking
0 0%
100% 100

Questions & Answers

As answered by people managing TheSecondBrain.dev and Splitcat.

What makes your product unique?

TheSecondBrain.dev's answer

Most AI memory tools store your context on their servers. This one deploys into your own Cloudflare account, so the memory is yours in a literal sense: your database, your vectors, your billing. We can't read it because we never have it.

The other difference is recall:

  • Semantic, not keyword. Ask by meaning, not by remembering what you called it.
  • Multi-hop. Memories link to each other, so a query surfaces the reasoning behind a decision, not just the decision.
  • Status-aware. Entries are marked canonical, draft or deprecated, so an agent knows which version of a fact to trust.
  • Honest about conflicts. When two memories disagree it flags it for you instead of quietly picking a winner.

Why should a person choose your product over its competitors?

TheSecondBrain.dev's answer

It works everywhere you work. Claude, ChatGPT, Cursor, Windsurf, Codex, any MCP client. Most memory tools only remember what happened inside their own app, so you end up with three AI tools holding three different versions of you.

You own the deployment. One-click deploy to Cloudflare, or a signed desktop installer if you'd rather not touch a terminal. Typical personal use sits inside Cloudflare's free tier, so there's no subscription to cancel and no vendor to migrate off later.

It's open source. MIT licensed. Read the code, fork it, extend it. Nothing about how your memory is stored or retrieved is a black box.

How would you describe the primary audience of your product?

TheSecondBrain.dev's answer

People who already live in these tools. They have an Obsidian vault or a Notion workspace, they're in Claude or ChatGPT every day, and some of them are in Cursor too. They're not casual users and they're not necessarily developers. They've built a system, and they've noticed the system doesn't talk to itself.

The shared frustration isn't "AI forgets." It's that a year of real thinking, hours of working through actual problems, hasn't left anything behind. Every conversation is good and then it's gone, and a month later they're figuring out the same thing from scratch.

They also tend to care where their work sits. Not privacy absolutists, just people who'd rather their own thinking accumulate in an account they control than in someone else's product they might have to leave.

What's the story behind your product?

TheSecondBrain.dev's answer

I was using Claude, ChatGPT and Cursor every day and re-explaining the same projects to each of them. A year of that adds up to nothing. The decisions I'd worked out in one tool simply didn't exist in the next one.

I built it for myself first, on Cloudflare because I already had an account and the free tier meant I could run it without thinking about cost. Then I open sourced it, and what people asked for shaped what it became. The desktop app exists because a user on Product Hunt asked for a path that didn't involve a terminal, and she was right to ask.

I still use it every day. Most of the roadmap comes from hitting the limits of my own memory layer.

Which are the primary technologies used for building your product?

TheSecondBrain.dev's answer

  • Cloudflare Workers โ€” runtime
  • Cloudflare D1 โ€” SQLite, entries and relationship graph
  • Cloudflare Vectorize โ€” embeddings and semantic recall
  • Workers AI โ€” embedding generation and synthesis
  • TypeScript
  • Model Context Protocol (MCP) โ€” client integrations
  • Tauri โ€” Mac and Windows desktop app
  • Wrangler + GitHub Actions โ€” deploy and release

Who are some of the biggest customers of your product?

TheSecondBrain.dev's answer

  • People who run Obsidian, Notion and several AI tools side by side
  • Consultants, operators and independent professionals who think out loud with AI all day
  • Writers, researchers and strategists whose best thinking currently lives in chat logs they can't search

User comments

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What are some alternatives?

When comparing TheSecondBrain.dev and Splitcat, you can also consider the following products

ChainMemory - Portable, verifiable memory for AI agents โ€” works across ChatGPT, Claude, Gemini and any MCP client

File Splitter And Joiner - File Splitter And Joiner is an easy to use tool to quickly split and combine files. You can split one large file into multiple smaller files. You can also merge the small chunks and create the original large file again.

Agentmemory - Persistent memory for Claude Code, Codex & coding agents

SplitFile - Divide file di grosse dimensioni in parti pi๏ฟฝ piccole. Caratteristiche principali:supporta file enormi, alta configurabilit๏ฟฝ per aumentare le prestazioni su dischi veloci

OpenMemory MCP - Your private, local memory layer for all AI tools

GSplit - GSplit is a free file splitter that splits any file into smaller files called pieces. Lots of customization options, attractive and easy-to-use interface.