Seems like a solid strategy, give it a try on e.g., https://bitcoinflip.app [and learn that most such strategies will fail to give you any gains]. Source: almost 2 years ago

Here is one of the Bitcoin trading simulators (just took the first google result): https://bitcoinflip.app/ try to time the market and observe that you might be lucky a couple of times until - well, until you aren't. :). Source: about 2 years ago

Https://finary.com/en looks like a lot under the hood but maybe too much? Source: 9 months ago

Have you looked into Finary? They offer 20k+ banks & investment platforms and seem to cover many different asset classes. Their App is pretty nicely rated. Source: over 1 year ago