Updated 3 July 2026 - Digital bank comparison

Atom Bank vs KrooWhich should you choose?

Atom Bank and Kroo can both be useful digital banking options, but they are built for different priorities. Atom may suit you if savings, mortgages and app-only banking without a current account matters most, while Kroo may be worth comparing if you prefer ethical banking, fee-free travel and social spending.

Quick verdict

Pick Atom if you mainly want app-based savings.

Pick Kroo if you want a simpler ethical digital bank.

Atom Bank logo

Choose Atom if...

  • You mainly want app-based savings.
  • You do not need a current account from this provider.
  • You want FSCS-protected savings from a digital bank.
  • You are comparing savings-focused digital providers.
Read the Atom review
Kroo logo

Choose Kroo if...

  • You want a simpler ethical digital bank.
  • You often split bills or manage money with friends.
  • You want fee-free card use abroad.
  • You do not need a wide product range.
Read the Kroo review

Atom vs Kroo: side-by-side

CategoryAtomKrooEdge
Best overall fitSavings, mortgages and app-only banking without a current accountEthical banking, fee-free travel and social spendingTie
Monthly feeNo current account monthly fee because Atom does not offer a standard current account.No monthly fee on the personal current account.Tie
Budgeting toolsLimited: Atom is not built around everyday budgeting or current account tools.Simple: spending insights, social payments and shared Pots, but fewer advanced tools.Tie
Spending abroadNot a travel spending account; Atom does not offer a standard debit card current account.Very strong: no Kroo fee for card spending or ATM withdrawals abroad.Tie
Deposit protectionEligible deposits protected by FSCS up to the current UK limit.Eligible deposits protected by FSCS up to the current UK limit.Tie
SupportDigital support through app and online channels.Digital support through the app and help centre.Tie
Business bankingNo standard business current account for everyday payments.No business account currently offered.Tie
Extra productsSavings accounts, mortgages and lending products may be available.Current account interest, social spending tools, personal loans and a cash ISA may be available.Tie

Final verdict

Atom and Kroo are worth comparing side by side. The better fit depends on whether you care more about savings, mortgages and app-only banking without a current account or ethical banking, fee-free travel and social spending.

The best choice depends on what you want the account to do. If one option fits your day-to-day habits better, that usually matters more than a single headline feature.

Continue researching

Read the full reviews and guides

We link to every digital bank review here so the comparison pages do not favour one provider over another.

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