I compared Plum, Chip, and Monzo savings properly — not just the headline rates, but how they actually behave when you're trying to save £200 a month alongside council tax, a Tesco big shop, and whatever else life decides to throw at you. I was doing this on a rainy Saturday morning, coffee going cold beside me, spreadsheet open. The differences are bigger than most comparison articles let on.
If you've been Googling "plum vs chip" or "is plum a good money saving app" and getting vague, hedge-everything answers, this is the post I wished existed when I started using all three.
Plum vs Chip vs Monzo Savings: The Quick Verdict
Monzo is the safest, simplest pick if you already bank there. Chip offers the highest interest rates of the three. Plum wins on flexibility if you want rule-based auto-saving with real customisation.
None of them is objectively best — it depends on how you save. But hedging everything is a bit useless, so I'll tell you exactly which one I'd pick in each situation.
Is Plum a Good Money Saving App?
Yes — for the right person. Plum uses open banking to analyse your spending and automatically sets aside small amounts it calculates you won't miss. The algorithm is genuinely clever. It looks at your income and outgoings and moves money before you get a chance to spend it.
What I like: the rule builder. You can set Plum to save more on the days you don't spend at Asda, pause saving the week your car insurance renews, or boost contributions when your salary lands. This level of control is where Plum genuinely stands out from the other two.
What's a bit rubbish: the free tier is quite limited. To access the better interest rates or the Plum Cash ISA, you'll need a paid plan — starting around £2.99 a month. That eats into your returns if you're only saving modest amounts.
Plum auto-saving: an AI-powered feature that analyses your bank transactions via open banking and moves money to savings automatically, typically in small amounts based on what it judges you can afford that week.
Is Money Safe in Plum?
Yes — your money is FSCS protected up to £85,000, but not directly through Plum itself. Plum holds your savings with regulated partner banks, and those banks carry FSCS authorisation. So if Plum went under, your money would still be protected.
This trips people up. Plum is not a bank — it's an e-money institution. That sounds scarier than it is. The FSCS protection via partners means the practical safety is the same as a high street bank, provided you're under the £85,000 threshold per institution. Honestly, I was a bit unsettled by this when I first looked into it, but once I understood how the structure works, I stopped worrying.
FSCS protection: a UK government scheme that protects up to £85,000 of deposits per person, per authorised institution, if a bank or building society fails.
Is My Money Safe With Chip?
Same story. Chip is not a bank either, but your savings are held with FSCS-protected partner banks, so the protection is real. The key thing to check — and Chip is transparent about this — is which institution is holding your money, because the £85,000 limit applies per authorised firm. If you already hold savings at a bank Chip also uses as a partner, that protection could overlap.
For most people saving under £50k, this is not something to lose sleep over. Both Plum and Chip are solid. But worth knowing if you're moving larger sums around.
Interest Rates: Where Does Your Money Actually Grow?
Chip consistently offers some of the best easy-access rates you'll find through a savings app. In early 2026, Chip's instant access account has been sitting around 4.5–5% AER — competitive with the best easy-access deals across the whole market, not just in the app world. The free tier earns a slightly lower rate; ChipX members get the top figure.
Plum's rates depend on which account type you open and which plan you're on. The paid-plan instant access account has tracked similarly to Chip at times, but the free tier earns noticeably less. Always check the app for the current rate — it shifts.
Monzo savings pots work through partner banks. The rates are competitive but typically sit a touch below the best standalone savings apps. The trade-off is seamlessness — your savings pot lives right inside your current account, and withdrawals are instant.
| App | Approx. Easy Access Rate (2026) | Cash ISA? | FSCS Protected? |
|---|---|---|---|
| Chip | ~4.5–5% AER | Yes | Yes (via partners) |
| Plum | ~4–4.8% AER (paid plan) | Yes | Yes (via partners) |
| Monzo | ~4–4.5% AER | No standalone ISA | Yes (direct — Monzo is a licensed bank) |
Rates change frequently — always verify in the app before opening an account.
Auto-Saving Rules: Which App Is Smartest?
Plum wins this category, and it's not particularly close. Its AI saving algorithm is the most sophisticated of the three, and the rule builder lets you get genuinely granular. I had mine paused over Christmas and it genuinely saved me from a difficult January.
Chip has solid round-ups and autosave options, but the rules are simpler. You set a fixed amount or a frequency and it does it. Less clever, more predictable — which some people actually prefer.
Monzo's round-ups are the simplest. Spare change from every card purchase gets swept into a savings pot. It adds up faster than you'd think. If round-ups are your main focus, I covered how they compare across UK banks in detail in my round-up savings apps comparison.
Ease of Withdrawal
All three offer same-day withdrawals to your linked account. Monzo is fastest — it's all within one app, so moving money between your pot and current account is instant. Chip and Plum transfers to an external account typically take a few hours, occasionally the next working day.
Not a dealbreaker. But useful to know if you occasionally need money in a hurry.
Which Savings App Should You Actually Use?
Choose Chip if you want the best interest rate with minimal faff. Open the account, set an autosave amount, leave it alone. The rates are consistently strong and there's very little to think about.
Choose Plum if you want smart auto-saving with rule customisation — and you don't mind paying a few quid a month for the premium plan. Also worth considering if you want a Cash ISA in the same app as your budgeting tools. I covered Plum's budgeting features in more detail in my best budgeting apps UK guide if that side of things matters to you.
Choose Monzo if you already use it as your main bank and you want savings without switching apps. The slightly lower rate is a reasonable trade-off for the convenience. And Monzo is the only one of the three that's a fully licensed bank — so FSCS protection is direct, not routed through a partner.
Real Savings Projections: What Could You Actually Earn?
Say you save £200 a month consistently. After 12 months that's £2,400 saved.
At 5% AER (Chip's top rate), you'd earn roughly £65 in interest over that year — more if you're making monthly additions and the rate holds. At around 4.2% (a mid-range Monzo pot), it's closer to £54. Not life-changing, but it's genuinely free money.
And here's the thing: the real gain from all three apps isn't the interest. It's getting money out of your current account before you spend it. That's where Plum, Chip, and Monzo all actually earn their keep. The interest is a very welcome bonus.
Free tool: Use our Subscription & Direct Debit Audit spreadsheet (free) to find out exactly where your money goes each month. See all our UK finance tools.
My Pick
I use Chip for the bulk of my easy-access savings and Monzo for day-to-day spending pots and round-ups. Plum is brilliant if you enjoy tinkering with rules and want everything in one place, but the paid plan requirement grates on me for what it actually offers at the basic level.
If you're starting from scratch: open a Chip account today. It's the simplest path to a competitive interest rate with no complications and no subscription required to get started.