State of Paywalls 2026: see what works for 78,000+ paywalls
NumberSlam® app icon

<$1K

Estimated monthly revenue

<1K

Monthly downloads

In-App Purchases

  • Activate NumberSlam$7.99
Released
April 14, 2022
App Name
NumberSlam®
Description
A fast-paced mental math game
Supported Languages
English
Latest info update
October 25, 2026

Create paywalls in a few clicks with Paywall Builder

Choose from ready-made templates or start fresh with a blank canvas

Explore Paywall Builder

About the app

NumberSlam® is a fast-paced mental math game designed to help players improve their mental math skills. It is aimed at Classical Conversations students, their parents, and anyone who enjoys mental math challenges; the app offers a $7.99 in-app purchase to activate it.

More paywalls from Education

Discover additional paywalls from Education applications for inspiration.

Grow your app revenue
with Adapty

Subscription infrastructure, flows & paywalls,
analytics and user acquisition tools in one platform.