Senpai Store review for Preorder, Back in stock Duck

Oct. 2, 2025

Super easy to use and works flawlessly! The app not only sends notifications but also provides clear reports on which products have the most people waiting, plus an automated email sequence with both notification and reminder messages. What’s even better is that it also supports WhatsApp notifications, which adds an extra layer of convenience. The whole installation and setup took maybe 5 minutes. The support team is amazing — they reached out to me proactively, letting me know the app was running fine but suggested improving the look by moving the notification button and rounding its corners to better match my store’s design. And then they just did it for me! Absolutely excellent app and service. 5/5