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Splitwise VS TheSecondBrain.dev

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

Splitwise

Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!

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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.

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Pricing
Open source
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Finsepa
Bring your portfolios together, understand what drives your returns, and track your progress toward your goals — with research tools to explore every investment further. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Personal Finance popularity
100% vs 0%
alternatives listed
240+ vs 30

Base details

Website, pricing, platforms and company facts side by side.

Splitwise
TheSecondBrain.dev
Website splitwise.com thesecondbrain.dev
Pricing —
Open source
Company — Startup from the United States · 2026
Listed in
Personal Finance Expense Tracking Bill-Splitting Apps Finance +1
Developer Tools AI Tools AI Memory AI Productivity Tech +3

About Splitwise and TheSecondBrain.dev

In their own words, as submitted to SaaSHub.

Splitwise
TheSecondBrain.dev

No description of Splitwise yet.

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...

Read more about TheSecondBrain.dev

Features and specs

What each product offers, as listed by its team.

Splitwise 7 features
TheSecondBrain.dev 11 features
  • User-Friendly Interface
    Splitwise provides an intuitive and easy-to-navigate interface, making it straightforward for users to add expenses, keep track of debts, and settle up.
  • Multi-Platform Availability
    Available on the web, iOS, and Android, Splitwise ensures users can access and manage their expenses from almost any device.
  • Expense Tracking
    The app allows users to easily log and categorize expenses, which can be particularly useful for group trips, shared households, or any shared financial responsibility.
  • Flexible Split Options
    Users can split expenses equally, by percentages, shares, or custom amounts, providing flexibility in how costs are divided among group members.
  • Currency Conversion
    Splitwise supports multiple currencies, which is handy for international travel or groups with members from different countries.
  • Bill Reminders
    The app sends reminders for outstanding balances, helping users to stay on top of their payments and avoid forgotten debts.
  • Integration with Payment Platforms
    Splitwise can integrate with payment platforms like PayPal and Venmo for easy settlement of balances.

Possible disadvantages

  • Privacy Concerns
    Since Splitwise involves sharing financial information with others, there could be privacy concerns for those unwilling to share detailed expense data.
  • Subscription-Based Features
    Some advanced features, such as expense exporting and additional integrations, require a Splitwise Pro subscription.
  • Manual Entry Requirement
    Splitwise requires users to manually enter expenses, which could be time-consuming and prone to errors if not done diligently.
  • Limited Automatic Reconciliation
    While Splitwise helps track who owes whom, it does not automatically reconcile or pay off balances, leaving users responsible for manual payment.
  • Dependency on Group Honesty
    The accuracy of the expense records relies on the honesty and diligence of all group members, which may not always be reliable.
  • Potential for Confusion
    The various options for splitting bills (equally, by shares, etc.) can sometimes lead to confusion or disputes among users over what is fair.
  • 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

Analysis

An editorial look at what each product does well and who it suits.

Splitwise
TheSecondBrain.dev

Overall verdict

  • Splitwise is a highly effective tool for managing shared expenses, especially if frequent splitting of costs is involved. Its features make it easy to track who owes what, and its automatic calculations save time and reduce errors.

Why this product is good

  • Splitwise is popular because it simplifies sharing and tracking expenses among groups, making it ideal for roommates, friends on trips, or any group spendings.
  • It automatically calculates balances and reminds users about payments, reducing the awkwardness of asking others for money.
  • Offers a user-friendly interface both on web and mobile apps, which makes managing expenses convenient and accessible.
  • Supports multiple currencies, which is great for international travel groups.
  • Integration with payment platforms like PayPal and Venmo for easy settlement of debts.

Recommended for

  • Roommates who need to regularly split household bills and expenses.
  • Groups of friends or families who often travel together and need to manage shared travel costs.
  • Colleagues or classmates working on projects or events that require shared funding.
  • Anyone who wants to avoid the hassle of manually tracking and settling shared expenses.

No analysis of TheSecondBrain.dev yet.

Videos

Walkthroughs and reviews on video.

Splitwise 3 videos + Add
TheSecondBrain.dev 2 videos + Add

Splitwise - iPhone App Review! [2020]

More videos

  • - Tricount vs Splitwise - App comparison
  • - Splitwise Demo

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

More videos

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

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Splitwise
TheSecondBrain.dev
100% 100%
Personal Finance
0% 0%
0% 0%
AI Memory
100% 100%
100% 100%
Expense Tracking
0% 0%
0% 0%
Developer Tools
100% 100%

Questions & Answers

As answered by people managing Splitwise and TheSecondBrain.dev.

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

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