Ray vs Spreadsheets
Spreadsheets give you total control over your finances. Ray gives you AI-powered answers with automatic bank sync. Here's when each one makes sense.
Ray
An open-source CLI that connects to your bank via Plaid and gives AI-powered financial advice. Runs locally on your machine. $0 self-hosted or $10/mo managed.
Spreadsheets
Google Sheets, Excel, or Tiller-powered spreadsheets are the DIY approach to personal finance. You build exactly what you want, own your formulas, and have complete flexibility. Many financially-savvy people swear by them.
Feature comparison
| Feature | Ray | Spreadsheets |
|---|---|---|
| AI financial advice | Yes — conversational AI advisor | No — you build the logic |
| Bank sync | Yes (Plaid, automatic) | Manual or Tiller ($79/yr) |
| Data storage | Local encrypted database | Local file or Google cloud |
| Open source | Yes (MIT) | Your own formulas |
| Pricing | $0 self-hosted / $10/mo managed | Free to $79/yr (with Tiller) |
| Privacy | No cloud storage, PII-masked AI calls | Depends (Google Sheets = cloud) |
| Mobile app | No (CLI-based) | Yes (Google Sheets mobile) |
| Budgeting | AI-assisted budget tracking | Whatever you build |
| Investment tracking | Yes — holdings, gains, cost basis | Manual tracking only |
| Debt payoff planning | Yes — avalanche/snowball simulations | If you build the formulas |
Key differences
Automatic bank sync
Spreadsheets require manual entry or a paid add-on like Tiller. Ray syncs directly with your bank via Plaid — your data is always current.
Ask questions in plain English
With a spreadsheet, you need to build the formula first. With Ray, you just ask: "how long until I'm debt-free if I add $200/mo?" and get an instant answer.
Doesn't break when you're busy
Every spreadsheet budget dies eventually because life gets in the way. Ray syncs automatically and is always ready when you come back to it.
Pre-built financial intelligence
Ray has 30+ tools for spending analysis, debt payoff, investment tracking, and more — things that would take hours to build in a spreadsheet.
Pricing comparison
Ray
$0 self-hosted
$10/mo managed
Open source, MIT licensed. All features included.
Spreadsheets
Free (Google Sheets) to $79/yr (Tiller for bank sync)
The verdict
Spreadsheets are the most flexible personal finance tool that exists. If you love building formulas, tracking every number yourself, and having total control over your financial model, spreadsheets are hard to beat. The best spreadsheet budget is the one you've customized to your exact life.
The problem is maintenance. Most spreadsheet budgets die within a few months because manual data entry doesn't survive a busy period. When you come back to it, the data is stale and catching up feels overwhelming.
Ray solves the maintenance problem with automatic bank sync and solves the analysis problem with AI. You don't need to build formulas — you ask questions and get answers. The tradeoff: you lose the total customization of a spreadsheet. But you gain an always-current financial picture and an AI that can run complex analyses on demand.