I do not know if those options are available to use. However, to keep the cost down at this time. I would look into cloud-based accounting. This way you can generate Proft/Loss reports and etc. Check out Wave Accounting and see if that might fit you. It’s a bit more simple to use than QuickBooks.
Again, you are just looking for items/software that is similar to these. If they aren’t available in your area. With 100 euros/month to spend. That does not leave a lot of wiggle room. What’s your profit on each download? Or where do you make your profit at?