> Just look at the list of your transactions and that's it.

Not if you have several cards through several servicers. I myself have eight servicers that I'd have to check. I only actively use four of them, though. I'm acutely aware of this complexity and have over time moved most recurring bills to a single card on a single servicer.

I know one weird trick to reduce your friction easily by at least 50%. ;-)

I can't believe it's not butter.

I had 187 transactions last month. The odds that I would overlook one is pretty high. A service that can automatically highlight interesting categories seems pretty useful.

Let's be conservative and say that it takes the average person 3 seconds to read a transaction, recall whether it is a retail or subscription service, and if it is a subscription service decide if you want to keep it or investigate it. Then in no more than 10 minutes you would have generated a short list of subscriptions to investigate and potentially cancel.

Do you really not have 10 minutes per month to review your transaction history?

The service may be free, but(!) you have to hand over your financial info (to a random company) and credentials (to plaid/intuit). Protecting that information is worth a lot more to me than 10 minutes of my time.

Not to mention, reviewing one's monthly transaction one by one is a great opportunity to reflect one's spending habits and rein in superfluous purchases.

Keeping transactions categorized in Mint easily takes me a couple hours per month. Many restaurants/bars/online shops have terrible metadata for their transactions, in my experience. I typically have ~300 txn/month between my wife and I. Most of them take no time at all. The ones where I have to dig due to crap metadata usually take 5-10 minutes apiece.

I've mostly decided it's not worth it, but every couple months I'll ask "how did we spend this much?!" and categorize everything only to discover it was my new ski gear all along and I'd just forgotten it.

Honestly I had the exact same problem. The solution for me was still pretty simple though, I just changed how often I would examine/categorize the information. I had much better recall of what transactions I have approved over the past couple of days rather than over the past month and it takes much less time overall.

I use YNAB which is basically the manual version of Mint. It imports exactly nothing for you. You must log into your bank account/credit card and log each transaction and categorize it yourself. This might take me 30 minutes per month. If you wait until the end of the month it will take longer because you'll forget what you did at the start of the month. You need to keep up with it like anything else.

You can import records in bulk from online banking exports, though, which is what I do to get my transactions in the system, and if it sees a payee it's seen before then it'll automatically suggest a category. You do still have to approve every transaction, which I think is useful.

Fellow YNAB user... how often do you reconcile? I try to do it at the end of the month and it can get a little overwhelming.

This is a big design mistake:

> Do you really not have 10 minutes per month to review your transaction history?

You're asking a loaded question here, with the intent of shaming people into giving dishonest answers.

The correct question to ask is: how many people carefully look through their credit card statements every single month?

My guess is that ~25% will say that they do and ~10% actually would catch inserted mistakes the first month.

To build successful products, you have to design for people as they are, not at as you think they should be in some ideal world where people are smarter, more virtuous, more rigorous, or have more time.

Whether I have 10 minutes (I do) is a very different question from whether I review each transaction carefully every month (I do not).

Also, IMO the 2nd part -- easy automatic unsubscription in one place -- is actually even more valuable. A few times I would actually notice a transaction, say I need to cancel this one before next month/quarter rolls over, and then forget about it :)

Would you entrust credentials to financial auditing software that only ran locally on a trusted client device, where the auditing software was firewalled so it could only access whitelisted network addresses?

It takes me 10 minutes to figure out what amazon order resulted in 3 separate charges, none of the numbers ever being mentioned in my Amazon order history (just the sum).

More importantly, (I think) a budget goes a long way in knowing where your money is going because you are telling it where to go. Setting up a monthly budget is key to managing your finances