Try easyPlanner – Task manager for free.
You can use this version without time limits and in all its functions in order to appreciate all its features.
However this version only allows 40 entries.
If you start to get tight, upgrade to the easyPlanner – PRO version, available via in-app purchase or as a stand-alone version.

easyPlanner – PRO Version allows you to get an unlimited number of entries, giving you the opportunity to always have everything you need with you and to take advantage of Reports over time.
One-time purchase. Without subscription.