Free
Free
Free download and use
Checked 20 Sep 2026
Plans and prices
Retain pricing
Retain Ultra
Not listed
AI-powered study features
Checked 20 Sep 2026
Retain Pro
Not listed
Paid in-app subscription
Checked 20 Sep 2026
Free download and use
Checked 20 Sep 2026
AI-powered study features
Checked 20 Sep 2026
Paid in-app subscription
Checked 20 Sep 2026