Masari App

AI-Powered Expense Tracking

Fintech

Virtual Assistants

Personal Finance

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Two years into working in Japan, and I've gone through the whole journey — envelope budgeting, spreadsheets, every app on the App Store. The rule that actually stuck for me: split your salary in thirds. One-third rent, one-third living expenses, one-third savings. Simple enough to remember, hard enough to execute. The execution part is where everything fell apart. Tracking living expenses manually is miserable. I kept an Excel sheet for a while — logging every purchase daily so I'd know what was left in the budget. But I'd forget to enter things. Or I'd see "¥5,000 — Saturday" and have zero memory of what I even bought. The data was there, but it was useless. So I built an app to fix this for myself, and it's become something I actually use every day. The core idea: no forms, no dropdowns, no friction. You either snap a photo of a receipt or just text it naturally — "coffee 300" or "lunch at the konbini 650" — and it figures out the rest. The AI pulls out whatever information it can and logs it. Two seconds, done. The more interesting part is what happens after. You can ask questions like "How much have I spent on food this month?" or "What did I buy last Saturday?" or "Am I on track with my budget?" You can tell it your salary, your savings targets, your fixed bills — and it retains all that context as it answers. It's less like a tracker and more like having a financially-aware assistant who actually knows your numbers. I'm still improving it and genuinely want to know if it's useful beyond just me. The app is called Masari — you can check it out at masari.salahslab.com or search "Masari AI" on the App Store if the link doesn't work. If you try it this week, I'd specifically love to know: Is logging faster than whatever you're doing now? And what would make you actually open it every day?