Free
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About
Mental math for your daily thinking break.
Ten questions a day or a quick practice round: Rechenflow turns mental arithmetic into a game. Pick the right answer, spot calculation patterns and follow your progress.
INCLUDED FOR FREE
• Daily challenge with ten questions and one attempt per day
• Addition practice with freshly generated questions
• Statistics and history
UNLOCK COMPLETE ONCE
• Subtraction, multiplication, division, percentages and squares
• Sprint: how many questions can you solve in 60 seconds?
• Estimation tasks and harder pro levels
• Daily pro challenge and one streak joker per month
YOUR PACE, YOUR STYLE
Fit in a short round or stay for a longer practice session. Choose light mode, dark mode or your system setting. Available in English, German, French, Spanish, Italian and Brazilian Portuguese.
No ads. No subscription. No cloud account is needed to play or buy. Local rounds work offline; verified online results, purchases, restores and optional cloud backup require a connection.
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What's New in Rechenflow Mental Math
1.6.1
September 30, 2026
Version 1.6.1: The new introduction shows you what Rechenflow can do in three short steps – with a real sample round. Settings are now clearly grouped into sections – with Rechenflow Complete you can sign in right there and back up your progress. Rechenflow looks much better on tablets, in both portrait and landscape. Purchases and restores are faster and more reliable, even after reinstalling. Everything is easier to read with large text.
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