For the short to medium term, I'd put it in a savings account, which guarantees +7% p.a. Accounting for brokerage fees, my portfolio would need to appreciate by ~4.3% for me to break even, due to trading fees, if I was to go with shares. Even more accounting for other fees.
A concrete example, using a paid Abacus subscription:
I'd need to have spent 1.16(999 ⨉ 12) = 13906.079999999998 for the year (assuming 16% VAT).
I'd also need the (2.107 ⨉ 2)% = 4.214% to cover trading costs.
If my portfolio didn't appreciate by at least 18.123%, I'd be making a loss if I chose to cash in within the first year. Spread out over a few years, the trading costs become less of a concern, but the cost of the platform still remains prohibitive for a small time investor (which I am, and likely will be for the foreseeable future). Of course, the additional services are a value add, but I'd be gaining less and less from the platform in the longer term, as I internalise the knowledge I've gained from it.
For larger amounts, the effects of the subscription fee wear off, but then, the trading costs begin to be more of a concern...
