Both are FCA regulated and FSCS protected. The real differences are fees, investment range and how each platform feels to use. Here is the honest comparison.
Fees verified July 2026. Capital at risk. Information, not financial advice.
Cost-conscious DIY investors who want to keep every fee at zero.
Index fund investors who want the lowest possible total cost and are comfortable with a newer app.
| Fee | Trading 212 | Prosper |
|---|---|---|
| Platform fee | £0 | £0 |
| Share dealing | £0 commission | Not applicable (funds and ETFs) |
| Fund dealing | ETFs only, £0 commission | Free |
| FX fee | 0.15% | None on GBP fund classes |
| Stocks & Shares ISA | Free | Free |
| SIPP | Free | Free |
| Withdrawals | Free | Free |
| Minimum to start | £1 | No minimum |
Reviewers consistently rate the app as easy to use and good value, and many mention the competitive interest paid on uninvested cash.
The most common criticisms are slow identity verification for new accounts and support that can take time to respond.
Read Trading 212 reviews on TrustpilotEarly adopters praise the zero fees and responsive founding team; roughly 84% of reviews are five stars.
The review base is small and some users want more account types and a web version.
Read Prosper reviews on TrustpilotTrading 212 built its name on removing fees. There is no platform fee, no dealing commission and no account charge on its ISA or SIPP. The only cost most investors pay is a 0.15% currency conversion fee when buying shares priced in dollars or euros.
The trade-off is scope. You can hold shares and ETFs but not traditional funds, and support is app-based. For an investor who wants a global tracker ETF inside an ISA at close to zero cost, it is very hard to beat on price.
Prosper's pitch is the cheapest total cost of ownership in the UK: no platform fee, no dealing fees, and refunded fund fees on a list of mainstream index funds. For a straightforward global tracker in an ISA or SIPP, the all-in cost can genuinely be zero.
The counterweight is maturity. It is a young platform with a small (if very positive) review base and no individual shares. If that trade-off suits you, the price is unbeatable.
A 0.2% fee difference is worth optimising. Knowing whether you are saving enough in the first place is worth far more. Delphina models your pensions, ISAs and investments and tells you where you actually stand.