My blackberry can hardly hold any apps?

[Mojaem]

So I've got the Blackberry Curve 9300 and I realised a while back that it can't hold many apps. I have the usual like bbm, facebook and twitter, and I have downloaded a few more (about 3 or 4) but when I try to download more apps it says there's no storage left on the device, try deleting languages, or something. I don't understand though, because before this phone I had the Blackberry Curve 8520, and it could hold 20 or more apps, I had downloaded lots and there was still more storage left. Surely my current Blackberry could hold even more because it's a newer make. I'm so confused + I've even deleted all the unwanted languages like it told me to.
Can anyone please tell me how I can free MORE storage somehow without deleting all of my apps like I have previously had to do.
Thanks in advance.
I've got a memory card in my phone.
Most people say they're rubbish, and I can't argue with them because mine freezes a lot, but I would say mine is better than some of the people I know who's phone freezes like all the time whereas mine does not.