The blog
Notes from the SpendWise team.
Engineering deep-dives, design rationale, and what we learn from our users.
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Engineering12 Apr 20266 min
How SpendWise predicts your spending before it happens
We built a linear regression model on three months of historical data. Here's exactly how it works — and why it's right 87% of the time.
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Aarav Krishnan
Founding Engineer
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Design4 Apr 2026 · 5 min
Designing a finance app for broke college students
Why we threw out every convention from banking apps and built something that feels closer to Duolingo than to a ledger.
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Product22 Mar 2026 · 4 min
Why we don't link to your bank account
Account aggregators are a great idea on paper. In practice, manual logging is faster, more accurate, and forces a behavior change that automation can't.
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Research8 Mar 2026 · 8 min
What 12,000 college students told us about their money
We surveyed our user base on hostel costs, mess fees, festival spending, and side hustles. The numbers might surprise you.