Freedom Broker does not have a minimum threshold for starting investing - you may start with any amount. You may buy just one share of any company. Most shares on the US stock market cost less than $50 per share. There are shares much cheaper on the Kazakhstan stock market.
At the same time, there are some technicalities when replenishing a brokerage account. If you replenish online through the Freedom Broker application using a bank card, the minimum amount is 500 tenge or 1 US dollar. However, when replenishing an account through a bank using the details of a brokerage account, you may choose any amount convenient for you without minimum restrictions.