Yes indeed! I went to Aldi this morning and bought a tool - so that I can keep one at my holiday flat for occasional jobs rather than having to remember to take the Fein. *And* I bought an accessory set - having first compared the centre with a Fein blade and determined that it would fit. I've taken a photo of two blades - one which came with the tool (on the left) and one which came with the accessory set. See:
The blades in the accessory pack have an array of teeth and slots - and fit my Fein tool as well as the Aldi tool. I guess that they would also fit Bosch tools - but I don't have one to check. You might be able to work it out from the photo. [When fitted to the Fein, the blade can be rotated in 45 degree steps - the same as with genuine Fein blades].