City Index is our recommended overall pick, earning a 4.1/5 rating against SoFi Invest's 3.3/5, thanks to stronger tier-1 regulation, a wider market selection, and MT4 access. SoFi Invest still wins on pure pricing with 0 pip spreads and a $1 minimum deposit, making it a compelling niche pick for cost-conscious beginner investors. For traders who want a well-rounded, safer, and more versatile trading experience, City Index is the stronger long-term choice.
Regulation & Safety
City Index holds licences from three respected tier-1 regulators: the FCA, ASIC, and MAS. This multi-jurisdictional coverage gives traders added confidence that client funds are protected under stringent oversight regimes across the UK, Australia, and Singapore.
SoFi Invest, by contrast, is regulated solely by the SEC in the United States. While the SEC provides robust protection for US-based investors, the lack of additional international licensing means SoFi Invest offers less regulatory diversification than City Index.
For traders who prioritize safety and want a broker with a long-standing, globally recognized regulatory footprint, City Index is the clear winner in this category.
Fees, Spreads & Costs
SoFi Invest technically offers the tighter headline spread, starting at 0 pips, compared to City Index's spreads from 0.5 pips. Neither broker charges a commission, and both waive deposit and withdrawal fees entirely.
However, City Index's 0.5 pip starting spread is still highly competitive within the CFD and forex space, especially considering its broader asset coverage and higher leverage ceiling. SoFi Invest's 0 pip spread applies primarily within its stock and crypto investing model rather than a full forex offering.
Cost-conscious beginners focused purely on stock or crypto investing may find SoFi Invest's structure more appealing, while active forex and CFD traders will find City Index's costs perfectly reasonable given the added value.
Account Accessibility & Minimum Deposit
City Index requires no minimum deposit whatsoever, removing any financial barrier to opening an account. This makes it exceptionally easy for new traders to test the platform before committing significant capital.
SoFi Invest requires a minimal $1 deposit, which is also remarkably low and designed to attract first-time investors who want to start small.
Both brokers excel here, but City Index takes a slight edge by requiring literally no upfront deposit at all.
Trading Platforms & Tools
City Index offers a proprietary web platform, a proprietary mobile app, and crucially, support for MT4 — one of the most widely used trading platforms in the world. This makes it a strong choice for traders who rely on custom indicators, automated strategies, or expert advisors.
SoFi Invest sticks to its own proprietary web and mobile apps, prioritizing simplicity and ease of use over advanced customization. This suits beginner investors well but limits options for more technically-driven traders.
Traders seeking platform flexibility and advanced charting tools will find City Index the more capable option, while those wanting a clean, no-frills experience may prefer SoFi Invest.
Market Range & Leverage
City Index offers access to CFDs, forex, stocks, indices, and commodities, with leverage up to 1:200 for eligible traders. This breadth makes it suitable for diversified trading strategies across multiple asset classes.
SoFi Invest focuses on stocks, crypto, and indices, with leverage capped at 1:1 — meaning no margin trading is available. This is a fundamentally different model built around straightforward investing rather than leveraged trading.
Traders wanting currency exposure or leveraged positions must choose City Index, while those focused on straightforward stock and crypto ownership will find SoFi Invest sufficient.
Our Verdict
City Index is the stronger overall broker in this comparison, backed by a 4.1/5 rating, deeper regulatory coverage, broader market access, and MT4 support. It suits traders who want a well-rounded, established platform with room to grow into more advanced strategies.
SoFi Invest earns its place as a niche pick for absolute beginners who want the lowest possible entry point and simple stock or crypto exposure. Its 0 pip spreads and $1 minimum deposit are genuinely attractive for that specific use case.
Ultimately, most traders — especially those interested in forex, CFDs, or multi-asset diversification — will find City Index the more complete and future-proof choice.