Esteban talked about Voyage at ESUG, its on the list of talks here:  http://goo.gl/E1VF53

You can of course scale up to Gemstone (or indeed start with that as well if you need something more commercial and supported - there is a Gemstone talk in that link as well).

Tim

On 2 Sep 2014, at 07:17, Roelof Wobben <r.wobben@home.nl> wrote:

Hello,

I want to try to make a financial app for a organisation.

There are some 50 customers so also 50 invoices a year.
Then the payments . Also 50 a year.

Cash and bank accounts . Every month some 10 - 20 things.

So on my disk on the programm I now use it costs me some 30 -  50 Kb a year.

What are my options for storage of those data.

I could use a database , but I wonder if there are more and better options.

Roelof