quantra is described as 'public API for quantitative finance made with Quantlib. The API is well documented and includes accessible details for use with Google Sheets'. There are five alternatives to quantra, not only websites but also apps for iPhone. The best alternative is Algovest, which is free. Other great sites and apps similar to quantra are Quantreex (Freemium), CloudQuant (Free), Algoriz (Freemium) and Streak.world (Paid).
- 5 alternatives