Manual Rollup Capabilities

If I perform a manual rollup on the Free Edition, how many records does it process?
If you are using the 'Run' link, Rollup Helper will process up to 1 million records.  If you are using a scheduled rollup, the number of records Rollup Helper will process is unlimited.

How long will it take?
When you click Run, you will be given an estimate of how long the rollup will take to finish processing.  If you do not want to wait, you may upgrade to get real-time functionality in the Enterprise edition.