The number of 123-Apps you can install to your 123-reg hosting package will depend upon the type of hosting package you have.
If you have a 123-reg Business hosting package, you will be entitled to 5 One-Click applications.
If you have a 123-reg Professional hosting package, you will be entitled to Unlimited One-Click applications.
Please note: Extra One-Click applications cannot be purchased individually. If you require more One-Click applications you will need to upgrade your business hosting package.