I spent the last 2.5 years building a super detailed financial planning tool called FinZot (US focused). It helps with questions like deciding when to retire, how much to spend in retirement, how to optimize taxes.
I believe it is much more detailed than other free tools or free tiers. It even contains an embedded Excel-inspired domain specific language for customizing the sizing of income/expense, etc.
The entire planning engine is free. Runs in your browser (Rust/WASM). No sign-up is necessary. Your data does not leave your browser unless you create an account.
There are a couple of paid features in the app which are mostly just quality of life features and AI integration. The AI integration is via a Claude connector that gives Claude access to the full planning engine.
I started working on FinZot before vibe coding was a thing. It was originally a project to learn rust/wasm. The planning engine is very much not vibe coded. I had too much fun optimizing the engine such that monte carlo trials run trials in ~1ms to have AI write the code. The newer parts of the UI were written by AI. AI has also been amazingly helpful to scale testing.
I do not have any plans to integrate with banks directly mostly for security reasons. In the paid version you can give Claude a screenshot of your balances/budget and it can update the plan and publish it to the app. Does ActualBudget offer a Claude connector? I have never tried it but I bet with both connectors Claude could read from ActualBudget and update FinZot plans in one conversation.
I am also not currently considering true self hosting. The guest mode has no time limit and does not require you to sign in and your data does not leave the browser. I will consider adding a feature to import and export plans.
I spent the last 2.5 years building a super detailed financial planning tool called FinZot (US focused). It helps with questions like deciding when to retire, how much to spend in retirement, how to optimize taxes.
I believe it is much more detailed than other free tools or free tiers. It even contains an embedded Excel-inspired domain specific language for customizing the sizing of income/expense, etc.
The entire planning engine is free. Runs in your browser (Rust/WASM). No sign-up is necessary. Your data does not leave your browser unless you create an account.
There are a couple of paid features in the app which are mostly just quality of life features and AI integration. The AI integration is via a Claude connector that gives Claude access to the full planning engine.
Links: https://app.finzot.com/plan/6VXFMte2tRMp81sRKhYgXM/results/n...
finzot.com
feels vibe coded, and the first modal i tried i couldnt save cause the save button rendered off screen
Was this on mobile?
I started working on FinZot before vibe coding was a thing. It was originally a project to learn rust/wasm. The planning engine is very much not vibe coded. I had too much fun optimizing the engine such that monte carlo trials run trials in ~1ms to have AI write the code. The newer parts of the UI were written by AI. AI has also been amazingly helpful to scale testing.
Very cool. Does this integrate with banks like ActualBudget? Any plans to support self hosting?
Thanks.
I do not have any plans to integrate with banks directly mostly for security reasons. In the paid version you can give Claude a screenshot of your balances/budget and it can update the plan and publish it to the app. Does ActualBudget offer a Claude connector? I have never tried it but I bet with both connectors Claude could read from ActualBudget and update FinZot plans in one conversation.
I am also not currently considering true self hosting. The guest mode has no time limit and does not require you to sign in and your data does not leave the browser. I will consider adding a feature to import and export plans.