Plum promises to save money for you without you having to think about it. You link your bank account, it studies your spending, and every few days it quietly moves a little cash into a savings pocket. After three months of using it as my main automatic saver, here is what actually happened, what the numbers really look like in 2026, and whether the paid tiers earn their keep.

This is written for the person who has searched “is Plum worth it” with a finger already hovering over the download button. I will be specific about prices, rates and the catches, because the headline figures and the figures you live with are not always the same.

What Plum actually is

Plum is a UK money app that sits on top of your existing bank account. It is not a bank itself. It connects through Open Banking, watches your income and outgoings, then uses its own rules to skim small amounts into savings. Over time it nudges those amounts up or down depending on what it thinks you can spare.

On top of that core auto-saving feature you get a few different homes for your money:

  • Easy Access Savings, a flexible savings pocket you can dip into
  • A Cash ISA for tax-free interest
  • Plum Interest, a money market fund managed by BlackRock
  • Investing, with a set of funds and, on higher tiers, individual stocks
  • A Plum Visa debit card on the paid plans

It is regulated by the Financial Conduct Authority. Plum Fintech Limited handles the account information and e-money side, and its subsidiary Saveable Limited is the FCA-authorised firm behind the investing features. So this is not some unregulated experiment, even if it feels lightweight when you first open it.

How the auto-saving felt in practice

The selling point is the automation, so that is where I paid the most attention.

In the first week Plum was cautious. It moved small amounts, £3 here, £5 there, every few days. By week three it had a better read on my pay cycle and started saving a bit more aggressively just after payday and backing off near the end of the month. You can also stack extra rules on top: round-ups that bank your spare change to the nearest pound, payday saves, and a 52-week challenge that ramps the amount up each week.

The round-ups are worth a specific note. Plum calculates and sweeps them once a week rather than instantly after each purchase, so do not expect to watch your change vanish in real time. Over three months the round-ups alone added a useful chunk without me noticing it leave.

The honest verdict on the automation: it works, and the “set it and forget it” feeling is real. But it is not magic. It is a smart standing order that adjusts itself. If you already have the discipline to move money manually on payday, you are paying for convenience, not for a result you could not get yourself.

The 2026 plans and prices

Plum overhauled its subscriptions in 2025. These are the current tiers and headline savings rates as listed on Plum’s own plans page. All rates are variable, so treat them as a snapshot rather than a promise.

  • Basic (free): 6 automations, 1 customisable savings pocket, Easy Access Savings at 3.05% AER, Cash ISA at 4.60% AER, Lifetime ISA at 4.06% AER, and a 95-Day Notice Pocket at 3.87% AER. Investing carries a 0.60% management fee.
  • Plus (£3.99/month): 10 automations, 16 pockets, Easy Access Savings at 3.10% AER, a lower 0.45% investment management fee, and the Plum Visa debit card.
  • Boost (£7.99/month): Easy Access Savings at 3.25% AER and a 0.30% investment management fee.
  • Max (£14.99/month): Easy Access Savings at 3.65% AER, the lowest 0.15% investment management fee, and lifestyle perks including a Tastecard membership.

Every paid plan gives you the first month free, and you can switch or cancel whenever you like.

The pattern is clear. The more you pay, the higher your savings rate and the lower your investment fees. Whether that maths works depends entirely on how much you actually hold with Plum, which I will come back to.

The Cash ISA: read the small print

This is the part most quick reviews skate over. Plum’s Cash ISA headline rate is 4.60% AER (variable), which sounds excellent. But that rate includes a bonus of 2.06% AER that only applies for the first 12 consecutive months. After that bonus period, the underlying rate drops to 2.54% AER.

A few things to keep in mind:

  • It is a flexible ISA, so you can withdraw and repay within the same tax year without losing your annual allowance.
  • The bonus comes with conditions. If your balance falls below £100, or you make four or more withdrawals, the rate drops to the 2.54% base rate. Check the current terms before you rely on the headline figure.
  • If you transfer money out to another ISA provider before the bonus is credited, you lose the bonus.
  • The transfer-in rate for money you move from an existing ISA is lower at 4.00% AER, including a smaller bonus of 1.46%.

None of this makes the ISA bad. It makes it a bonus-led account you should plan to review at the 12-month mark, the same way you would diary the end of an introductory rate on any savings product. Set a reminder for month 11 and decide then whether to stay or move.

Is your money safe?

Short answer: yes, but the protection is split across different products, and one part works differently from the rest.

Plum sets this out on its money protections page. The FSCS-protected savings sit with regulated partner banks, up to £120,000 per eligible person per banking licence. That limit rose from £85,000 to £120,000 on 1 December 2025, so older reviews quoting the lower figure are out of date. The Easy Access Savings account is held with Lloyds Bank, the 95-Day Notice Pocket with Investec Bank, and the Cash ISA money is spread across several banks.

The one to understand is your Primary Pocket, the main balance the app moves money in and out of. That is held as electronic money with Modulr, not as a bank deposit. It is safeguarded, meaning it sits ring-fenced and separate from Plum’s own money and would be returned under FCA safeguarding rules if Plum failed, but it is not FSCS protected in the way a bank deposit is. In plain terms, do not park a large balance in the Primary Pocket. Move savings into the FSCS-protected pockets, which is what the app encourages anyway.

Plum versus the simple alternatives

If all you want is round-ups, you may not need Plum at all. If you bank with Monzo or Starling, round-ups are built into the app for free and the money stays in an FSCS-protected pot, no extra connection and no subscription. Moneybox is the better fit if you want to invest your round-ups for the long term rather than just save them.

Where Plum pulls ahead is the automatic saving brain. The round-ups are table stakes. The thing you are really paying for is an app that reads your cash flow and varies what it saves so you put more aside than a flat standing order would. If that automation is the problem you are trying to solve, Plum does it as well as anything on the UK market right now. If you only want spare change swept up, a free bank feature does the job.

For more on building an automatic savings routine that does not rely on a single app, see our guide to round-up savings apps.

So, is Plum worth it?

After three months, here is where I land.

The free Basic plan is genuinely worth having. You get the auto-saving engine, round-ups, a 3.05% Easy Access pocket and access to a competitive Cash ISA, all for nothing. For most people reading this, Basic is the answer and you can stop there.

The paid tiers are worth it only if the maths works for you specifically. A £3.99, £7.99 or £14.99 monthly fee is a real drag on returns when you are holding a few hundred pounds. The higher savings rates and lower investment fees only start to outweigh the subscription once you have a meaningful balance, into the low thousands and up. Run your own numbers before upgrading: take the rate difference, apply it to your actual balance, and check it beats twelve months of fees. Often it will not, yet.

Plum is worth it if you struggle to save manually, you like the idea of an app deciding the amount for you, and you will use the free tier or hold enough to justify a paid one. It is not worth it if you already move money on payday without prompting, or you want hands-on control of investments, in which case a dedicated investment platform will serve you better.

The app does what it says. The only mistake is paying for a tier your balance does not yet earn back.

Frequently asked questions

Is Plum free to use? Yes. The Basic plan costs nothing and includes the auto-saving feature, round-ups, an Easy Access savings pocket and a Cash ISA. Paid plans (Plus, Boost and Max) add higher savings rates, a debit card and investing perks, starting at £3.99 a month with the first month free.

Is my money safe with Plum? Money held in the FSCS-protected savings pockets and Cash ISA is covered up to £120,000 per eligible person per banking licence, held with banks including Lloyds and Investec. Your main Primary Pocket is held as e-money with Modulr and is safeguarded rather than FSCS protected, so it is best not to keep a large balance there.

Does Plum charge a fee to withdraw my savings? No. Withdrawing from your savings pockets is free. With the Cash ISA, though, making four or more withdrawals or letting the balance fall below £100 can drop your rate to the base rate, and a full transfer out before the bonus is credited loses the bonus, so plan those moves carefully.

What is the catch with the Plum Cash ISA rate? The headline 4.60% AER includes a 2.06% bonus that lasts only the first 12 months. After that the rate falls to 2.54% AER. It is a flexible ISA and the rate is variable, so set a reminder near the one-year mark to review whether to stay or move.

Is Plum better than Monzo or Moneybox for round-ups? For round-ups alone, Monzo and Starling do it free inside their own apps with no subscription. Moneybox is better if you want to invest your round-ups. Plum’s edge is its automatic saving that varies the amount based on your spending, which the simpler tools do not do.

Should I pay for a Plum subscription? Only if your balance is large enough that the higher savings rate or lower investment fees outweigh the monthly cost. With a small balance, the fee eats your returns. Most people are better off on the free Basic plan until they have a few thousand pounds saved.