Key takeaways
- A good connection gives the app a revocable token, not your bank username and password.
- Read-only access can see transactions and balances but cannot move money.
- Ask how the app makes money, whether data is encrypted, and how to disconnect and delete.
- Never reconnect a bank from a link in an email or text; open the app yourself.
Connecting your bank to a budgeting app saves a lot of typing. Instead of entering every purchase by hand, the app reads your transactions and does the sorting. It’s also a reasonable thing to feel careful about. You are giving an app a view into your finances, and “is this safe?” is the right question to ask first.
There is no honest one-word answer, for any app. What you can do is understand how these connections work, know what kind of access you are granting, and ask a few specific questions. This guide covers all three.
How bank connections work
Most budgeting apps don’t build a separate link to every bank. They use a connection service that sits between the app and thousands of banks. Plaid is one of the best known.
In general terms, the flow looks like this:
- You start the connection inside the app. A window from the connection service opens.
- You pick your bank and log in. With some banks you are sent to the bank’s own website or app to log in and approve access. With others you log in inside the connection window.
- You choose what to share. Many banks let you pick which accounts the app can see.
- The app receives a token, not your login. The token lets it request the data you permitted, such as transactions and balances, for as long as the connection stays active.
- You can revoke it. Removing the connection in the app, or in your bank’s connected-apps settings where available, cuts off access.
The token is the important part. It is a key to specific data, tied to that app, that can be switched off, rather than your username and password being handed around.
The rules for this kind of data sharing are still being settled in the US. On October 22, 2024, the Consumer Financial Protection Bureau issued a final rule on personal financial data rights, which requires banks and other data providers to make your data available to you and to third parties you authorize, and sets conditions on how those third parties collect, use and keep it. On August 22, 2025, the CFPB opened a reconsideration of parts of that rule, including data security and privacy.1 Whatever the final shape, the questions below are worth asking of any app today.
Read-only vs payment access
Not all connections are the same. The biggest difference is whether the app can only look, or can also move money.
| Read-only access | Payment access | |
|---|---|---|
| Can see transactions and balances | Yes | Usually |
| Can move money in or out | No | Yes |
| Typical use | Budgeting, tracking, net worth | Transfers, automatic savings, bill pay |
| What to check | What data it reads and keeps | Exactly when and how money moves, and how to stop it |
A budgeting app that only helps you plan and track has no need to move money. If an app asks for more access than its features need, it’s fair to ask why.
Questions to ask any app before you connect
Reading a privacy policy is not anyone’s idea of fun, but a few minutes with these questions answers most of what matters. A trustworthy app should make them easy to answer.
- Can it move money? Look for a plain statement either way. If it can, find out when, and how you stop it.
- Does it see or store your bank login? You want it to use a token-based connection and say so.
- How does it make money? If you are not paying for the app, understand what pays for it. Look specifically for whether it sells your data or shares it with advertisers.
- Is your data encrypted? Look for encryption both in transit (as data travels) and at rest (where it’s stored).
- How do you disconnect a bank? It should be a clear option in the app, available any time.
- What happens when you delete your account? Your data should be deleted, not kept around.
- Who runs it? A real company, contact details and a published privacy policy are the baseline.
Be wary of vague claims in place of answers. Phrases like “totally safe” or “military-grade” don’t tell you anything you can check. Specific statements do.
For how security fits alongside everything else you might want from an app, see how to choose a budgeting app.
Safety habits that help with any app
Much of your protection comes from habits on your own side, and they apply whether you connect a bank or not.
- Use a unique password for your bank, and turn on two-factor authentication if your bank offers it.
- Only start a connection from inside the app. Never follow a link in an email or text that asks you to “reconnect” your bank. If you get one, open the app yourself. Messages claiming a problem with your account or suspicious log-in attempts are classic phishing, and the FTC’s advice is to contact the company through a phone number or website you know is real, not the one in the message.2
- Share only the accounts you need. If the app only needs checking and one card, don’t share the rest.
- Keep your phone locked and updated. A lost, unlocked phone is a bigger risk than most connections.
- Review connected apps now and then. Remove anything you no longer use, both in the app and in your bank’s settings.
- Keep watching your statements. A budgeting app is a second pair of eyes, not a replacement for your bank’s own alerts.
If you’d rather not connect at all
That’s a perfectly good choice. Budgeting by hand works: you enter a starting amount and log what you spend. It takes a little more effort, and some people like that it keeps them closer to every purchase. How to track your spending covers simple ways to do it.
A middle path also works. Some people connect only one spending account and leave savings unlinked, or connect for a while to see where the money goes and then disconnect. How to make a budget works either way.
In Aurelo: You can skip the bank entirely. Pick your pockets, enter a starting amount, and log spending by hand. You can connect later if you change your mind.
How Aurelo handles your bank connection
Here is what Aurelo does, stated as plainly as we can.
- Connection through Plaid, read-only. Aurelo can read transactions and balances. It cannot move money.
- Your bank login stays with you. Aurelo never sees or stores your bank username or password.
- Encrypted in transit and at rest.
- Disconnect any time. You can remove a bank connection whenever you want.
- Deleting your account deletes your data.
- No selling your data. Aurelo doesn’t sell your data or share it with advertisers.
Aurelo is paid for through optional subscriptions bought in the app, not through your data. For what Aurelo does with the transactions it reads, see how Aurelo builds your budget.
In Aurelo: Aurelo reads your last six months of transactions to suggest a budget made of pockets that match how you actually spend. It shows what you can save, but you move money yourself in your bank and tap Log it. Aurelo never moves, holds or transfers money.
If you share a budget with someone, sharing works the same way: each person chooses which of their own accounts feed the shared budget, and accounts you don’t link stay private. Budgeting as a couple covers how to set that up without merging everything.
The short version
Connecting a bank is as safe as the connection method and the app on the other end. Look for a token-based connection, read-only access unless you truly want an app to move money, a clear business model that doesn’t involve selling your data, and easy ways to disconnect and delete. Then pair it with good habits on your side: strong bank passwords, two-factor authentication, and never reconnecting from a link someone sent you.
Common questions
Is Plaid safe to use?
Plaid is a widely used connection service that many financial apps rely on to link bank accounts. Whether connecting is right for you also depends on the app on the other end, so check what access that app asks for, what it does with your data and how you can disconnect.
Can a budgeting app take money from my bank account?
It depends on what access it has. An app with read-only access can see transactions and balances but cannot move money. An app that moves money needs payment access and should say so plainly.
Does a budgeting app see my bank password?
With many connection flows, you log in through the connection service or your bank's own page, and the app receives a token rather than your login. Check the app's privacy policy to confirm how it handles this.
How do I disconnect my bank from an app?
Most apps let you remove a connection in their settings. Many banks also show which apps have access in their own security or connected-apps settings, where you can revoke it.
Sources
- Required Rulemaking on Personal Financial Data Rights , Consumer Financial Protection Bureau, 2025
- How To Recognize and Avoid Phishing Scams , Federal Trade Commission, 2022