This Nov 2023 blog post from the CEO of a budget/financial management software firm (Monarch) tells us a lot about why we don't have alternatives to Intuit ...
... personal finance apps, which typically rely on data aggregators (Plaid, Finicity, etc) to connect to tens of thousands of financial institutions to aggregate the necessary financial data. These data fees are quite expensive, which means a personal finance app is losing money on each free user and must make it up in some other manner...
... Personal finance apps are only as useful as their underlying data. As mentioned above, keeping this data up-to-date is a massive and expensive challenge that everyone underestimates. Subscription-based services are incentivized to constantly invest in this data architecture; otherwise, customers churn...
... Unfortunately, no single data aggregator provides complete coverage of all financial institutions. So we have integrated with all of them at Monarch. What’s more, we’ve spent years (and millions of dollars) building an intelligent data infrastructure that can route users to the best aggregator for a given financial institution. We’ve also invested heavily in AI-based transaction cleansing and classification. I believe we have the best financial data infrastructure that has ever been built for this use case. In full transparency, this is an ever-shifting landscape and there are still a few large institutions that don’t want to share their data, so our coverage is not yet 100%. We plan to get there eventually...
Intuit got the relationships early and has some leverage over banks (which seem to be normally greedy but extraordinarily incompetent). Everyone else is at the mercy of the aggregators. An evil (or just profitable) dominant vendor might spend quite a bit of money to keep this moat as deep and merciless as possible.