If you hold accounts at more than one bank — a checking account here, a savings account there, a joint account, a business account, maybe a card from a neobank — you already know the problem: there is no single screen that shows all of them. You juggle five apps, log in five times, and still can't answer "how much do I actually have, in total, right now?"
Here are the four ways people actually solve this in 2026, from the most manual to the most automated, and where each one breaks down.
1. The spreadsheet (manual, free, fragile)
Export a CSV from each bank, paste it into one sheet, reconcile. It works, it's free, and almost nobody keeps it up past month two.
The failure mode isn't laziness — it's that bank exports are inconsistent. Different date formats, different column orders, transactions labelled differently across banks. By the time you've normalised three exports, the data is already a week stale. Spreadsheets are great for analysing money you've already collected; they're a poor collection mechanism.
2. Your bank's own multi-account view
Some banks (and neobanks) let you link external accounts inside their app. It's convenient if your main bank offers it, but it has a hard ceiling: it only aggregates accounts the bank has integrations for, and it's in the bank's interest to make competitors' accounts feel like second-class citizens. You rarely get clean, exportable data, and business accounts are usually excluded entirely.
3. Account-aggregation apps
Dedicated aggregation apps (Yolt-style, Snoop, Plaid-powered dashboards) pull all your accounts behind one login. This is the closest thing to "one screen for everything" for most people. The trade-offs:
- Coverage varies by country. An app built on US aggregations often can't see your European bank, and vice versa.
- You're handing read access to your transactions to a third party. Read the privacy model — some sell anonymised insight data, some don't.
- Pricing tends to be subscription-based, and the free tiers get nerfed over time.
For a personal-finance overview, a good aggregation app is genuinely the right answer. The cracks show when you want the raw data — to feed your own budget, run accounting, or build something — because most apps won't give you a clean API out.
4. Open banking APIs (the structured-data route)
In the EU and UK, open banking regulations (PSD2) require banks to expose your account and transaction data through standardised APIs. That means instead of screen-scraping or PDF-parsing, you can pull structured JSON — balances, transactions, merchants — directly from the source, for every bank, in one consistent format.
This is the route that matters if any of these is true:
- You want to feed your own tool (a budget, a dashboard, an accounting workflow) instead of living inside someone else's app.
- You need business accounts alongside personal ones.
- You're a developer or a small team that wants the raw transactions, not a prettified chart you can't export.
The catch that catches everyone: PSD2 demands an eIDAS-qualified certificate (QWAC + QSeal) to talk to bank APIs directly. Those cost €2,000–€10,000 per year and involve real compliance work. That toll gate is precisely why aggregators exist — they hold the certificate and resell the connection to everyone who can't justify one. Disclosure: I maintain open-banking.io, which is built specifically so small users and SMBs get aggregated bank data without needing their own certificate — you talk to one simple API, the cert burden stays on our side.
Which one is actually right for you?
- You just want a dashboard and you don't code → an aggregation app. Pick one that covers your country's banks and read its data policy.
- You want total control and don't mind 30 minutes a week → the spreadsheet, accepting it'll always be slightly stale.
- You want raw, structured data for a project, a business, or automation → an open banking API route. If you can't justify a €2k+/yr certificate, use an aggregator that absorbs it for you (that's the whole reason cert-free layers exist).
- You only have accounts at one bank → you don't have this problem; your bank's app already is your single view.
The honest summary: "see all my accounts in one place" is solved differently depending on whether you want a picture (use an app) or the data (use an API). Most people want the picture. The moment you want the data — to build, automate, or account — you're in open-banking-API territory, and the only real decision is whether you carry the certificate yourself or let someone else carry it for you.
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