Software Alternatives, Accelerators & Startups

TheSecondBrain.dev VS SelfControl

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

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.

SelfControl logo SelfControl

V2 updates! - Custom time interval for distraction free mode - Ability to turn off ' always on' mode - Improved UI -- Self Control -- A simple app to keep you focused online by blocking sites that you spend way too much time on.
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.

  • SelfControl Landing page
    Landing page //
    2023-06-19

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

SelfControl features and specs

  • Effective Website Blocking
    SelfControl blocks access to distracting websites based on a customizable blocklist, helping users stay focused.
  • Timer Functionality
    Users can set a timer for how long they want websites to remain blocked, ensuring focused work periods without distraction.
  • Free to Use
    SelfControl is open-source and free to download and use, making it accessible to anyone without financial barriers.
  • Easy to Use
    The interface is straightforward and user-friendly, allowing users to quickly set their preferences and get started.

Possible disadvantages of SelfControl

  • Mac-Only
    SelfControl is only available for macOS, excluding Windows and Linux users from using the application.
  • No Undo Option
    Once the block period is set and started, it cannot be undone even by restarting the computer, which could be an issue if access to blocked sites is needed unexpectedly.
  • Limited Feature Set
    The app primarily focuses on website blocking, lacking additional productivity tools or features like app blocking or usage analytics.
  • No Scheduled Blocking
    SelfControl does not offer the ability to schedule block sessions in advance, meaning users must manually start each session.

Analysis of SelfControl

Overall verdict

  • Overall, SelfControl is a highly recommended tool for individuals looking to enhance their productivity by minimizing digital distractions. Its open-source nature and no-nonsense approach make it a popular choice among students, freelancers, and professionals alike.

Why this product is good

  • SelfControl is considered a good application because it effectively blocks distracting websites, helping users focus on their tasks without getting sidetracked by online distractions. It's simple to use, efficient, and highly customizable, allowing users to specify which sites to block and for how long, ensuring a tailored productivity experience.

Recommended for

    SelfControl is ideal for students who need to concentrate on studying, remote workers who want to avoid procrastination, freelancers who require discipline in managing their time, and anyone who needs a simple solution to reduce digital distractions during focused work periods.

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

SelfControl videos

How to block websites that distract you ? Selfcontrol [Mac App review and tutorial]

More videos:

  • Review - SelfControl Review - Block distracting websites

Category Popularity

0-100% (relative to TheSecondBrain.dev and SelfControl)
AI Memory
100 100%
0% 0
Time Tracking
0 0%
100% 100
AI
100 100%
0% 0
Time Management
0 0%
100% 100

Questions & Answers

As answered by people managing TheSecondBrain.dev and SelfControl.

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

Share your experience with using TheSecondBrain.dev and SelfControl. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, SelfControl seems to be more popular. It has been mentiond 79 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

TheSecondBrain.dev mentions (0)

We have not tracked any mentions of TheSecondBrain.dev yet. Tracking of TheSecondBrain.dev recommendations started around Jul 2026.

SelfControl mentions (79)

  • Oregon School Cell Phone Ban: 'Engaged Students, Joyful Teachers'
    A combination of https://selfcontrolapp.com/ and Hammerspoon automation and you can lock yourself out of pretty much everything. - Source: Hacker News / 5 months ago
  • Kiki โ€“ The accountability monster for people who are easily distracted
    Happy to see it still exists, and free https://selfcontrolapp.com/. - Source: Hacker News / 6 months ago
  • How do you fight YouTube addiction and procrastination? I'm struggling with it
    I have found that a useful method for getting distractions off my work laptop has been https://selfcontrolapp.com/ (if you're on mac). - Source: Hacker News / 11 months ago
  • Using an $8 smart outlet to avoid brainrot
    Pro tip for macos/ios folks: - Macos: Install https://selfcontrolapp.com/, add every website and their alternatives you know, set it to 24 hours. Really hard to bypass this even if you know networking stuff - iOS: Enable downtime 24/7 ask someone else to set the password. I'm down to about 35 minutes a day of mobile usage, and laptop usage is only work related things. You really need two or three days to clear... - Source: Hacker News / about 1 year ago
  • My 30-Year Quitting Addiction
    There is a free and open source app called SelfControl for macOS. It allows one to block access to any site one adds to the list in the app for the amount of time the user chooses. Attempt to use multiple browsers, restarting one's machine, deleting the app, etc. won't get around the block either. It's been super helpful for me, so I thought I'd just throw it out there. https://selfcontrolapp.com. - Source: Hacker News / over 2 years ago
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What are some alternatives?

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

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

Cold Turkey - Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!

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

Freedom.to - Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.

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

FocusMe - The website blocker you can't cheat