Numerlo
Duolingo for mental math - daily brain training for adults.
Numerlo launched on February 16, 2026 with 3 votes, #3,486 of 16,627 launches that month and more than 50% of that year's launches.
What it does
Speed mental math trainer with a twist, your score fights back. The Numerlo Index is a dynamic ranking system inspired by neuroplasticity and chess Elo. It tracks your mental math ability and drops if you stop training. The core game is simple: solve as many mental math questions as you can in 60 seconds. Questions get harder as your score climbs. Additionally, professional practice modes for finance, accounting, sales, medicine, actuarial and engineering because mental math shows up everywhere.
Download Numerlo - Speed Math by Nanxi Li on the App Store. See screenshots, ratings and reviews, user tips and more games like Numerlo - Speed Math.
Free · In-App Purchases · Designed for iPhone. Not verified for macOS. Education Developer Nanxi Li Language EN English Size 54.2 MB iPhone People notice fast thinkers. Complete a 60-second mental math sprint. Track your progress with the Numerlo Index. Watch your speed and accuracy improve over time. Short. Focused. Habit-forming. Free version includes • 8 daily games + 2 challenger games • Numerlo Index progress tracking • No ads - ever Premium unlocks • Unlimited daily games • Unlimited practice mode • Professional Challenges Built for people who used to be “math people” Accountants. Engineers. Finance. Consulting. Medicine. Anyone who wants sharper thinking in a world of calculators.…from apps.apple.com
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