About this app
Arithmetic is a fast, focused way to sharpen your mental math. Whether you're learning math for the first time or sharpening your skills, preparing for a quant or casing interview,, or anyone who enjoys keeping their mind sharp, Arithmetic helps you build real speed and accuracy. PRACTICE THAT ADAPTS TO YOU • Drill addition, subtraction, multiplication, and division — separately or all at once • Set your own number ranges for each operation, from easy to challenging • Choose your session length and race the clock LEARN MODE • Study operation tables at your own pace • Reversed and shuffled options to test true recall, not a memorized order SEE YOUR PROGRESS • Detailed statistics scoped to exactly the setup you practiced • Full session history with a per-problem breakdown, so you can spot which facts slow you down PRIVATE BY DESIGN • No account, no sign-up, no ads • Works completely offline • All your data stays on your device. Nothing is ever collected or uploaded Simple, clean, and built to make daily practice something you'll actually stick with.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 4, 2026 · 6:14 AM Free