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AI · April 12, 2020

Calcular

Mental maths done right, with speech-to-text and AI

Calcular launched on April 12, 2020 with 81 votes, #686 of 5,003 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 6 years on.

What it does

This app is a novel approach to learning mental maths, using text-to-speech, speech-to-text and AI under the hood to help kids (and parents) progress quickly. Available in English, French, Spanish, German and Italian. Our 9yo twins pushed me into doing this!

Download Calcular - Mental Math Trainer by Pierre Stanislas on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Calcular -…

$0.99 · In‑App Purchases · Designed for iPad. Not verified for macOS. Completely redesigned from the ground up with Liquid Glass — a stunning new look that feels right at home on iOS 26. New: Apple Intelligence integration on supported devices delivers live, on-device coaching with personalized tips and encouragement after every session. To help you better understand the developer’s responses, see Privacy Definitions and Examples . Privacy practices may vary, for example, based on the features you use or your age. Learn More Privacy practices may vary, for example, based on the features you use or your age. Learn More The developer, Pierre Stanislas , indicated that this app supports the…from apps.apple.com

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