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Numbio vs Duolingo Math: which is better for mental math?

If you want to get faster at mental math, Numbio is built for exactly that: every session is speed and fluency training, with times tables up to 20×20 and 48 tricks. Duolingo teaches math as one subject in its app, next to languages, music and chess, following the school curriculum.

Key takeaways

Numbio is a dedicated mental math trainer.
Duolingo’s math course follows the school curriculum for grades 2 to 12.
Choose Numbio for speed, tricks and bigger times tables.

What is Numbio? Numbio is a mental math trainer for iPhone and iPad that helps kids and adults calculate faster in their head, with drills, 48 step-by-step tricks, timed tests and number games.

A tilted grid of app tiles with simple learning icons, with the Numbio app icon raised among them.

Numbio vs Duolingo Math at a glance

Numbio is built only for mental math. Duolingo teaches math as one subject next to languages, music and chess, following the school curriculum.

Feature	Numbio	Duolingo
Math-only appDuolingo’s app also teaches 40+ languages, music and chess.	Yes	No
Built for mental math speedDuolingo teaches strategies inside lessons. Numbio trains speed with timed drills and tests.	Yes	Partly
Times tables up to 20×20Duolingo’s times tables go up to 9×9.	Yes	Partly
Tricks with practiceDuolingo lessons include strategies like rounding. Numbio has 48 dedicated tricks.	Yes	Partly
Percentages, roots, fractions, decimalsDuolingo teaches them as school units. Numbio drills them for speed.	Yes	Yes
EquationsBoth include equations.	Yes	Yes
LeaderboardsDuolingo’s leaderboards include math. Numbio uses Game Center.	Yes	Yes
Streaks and daily goalsBoth are built around a daily habit.	Yes	Yes
Number puzzlesDuolingo has math puzzles. Numbio has 4 number games.	Yes	Yes
Other subjectsDuolingo also teaches languages, music and chess.	No	Yes
School curriculum, grades 2 to 12Duolingo follows school topics. Numbio trains speed.	No	Yes

We compared Numbio with Duolingo using Duolingo’s own website, blog and App Store listing, checked on October 31, 2026.

What you get with Numbio

Short daily sessions like Duolingo, but every one trains calculation speed.

Times tables up to 20×20

Pick any range up to 20×20, or a preset, and drill until the answers come without thinking.

Numbio times tables on iPhone: a multiplication grid with the presets 20 × 20, 12 × 12, 10 × 10 and 5 × 5.

Numbio trick practice on iPhone: the exercise 15 × 11 with the answer being typed on the keypad, a progress counter and a timer.

Practice each trick until it’s automatic

Every one of the 48 tricks comes with its own drill at the level you pick, so the shortcut sticks.

Train by time, by number of exercises or at your own pace

Pick how each session ends, choose one of 4 difficulty levels, and have exercises read aloud if you like.

Numbio options on iPhone: training by number of exercises, time or pace, 10 exercises, the input mode and a switch to have exercises read aloud.

Is there a Duolingo for math?

Yes. Duolingo has a math course inside its main app. If you want a dedicated app that trains mental math speed, Numbio is the closer fit: short daily sessions, streaks and leaderboards like Duolingo, but every exercise is math and built to make you faster.

Choose Numbio if

getting faster at mental math is the goal

you want tricks and times tables beyond 10×10

you want timed tests to measure progress

math is the only thing you want to practice

Choose Duolingo if

you also learn a language, music or chess

you want to follow the school math curriculum

Numbio vs Duolingo Math: FAQ

For mental math, Numbio is a strong alternative. It keeps the daily-habit design of streaks, goals and leaderboards, but focuses entirely on calculation speed: 8 operations, 8 number types, times tables up to 20×20, 48 tricks with practice and 60-second tests.

Duolingo teaches useful mental strategies, like rounding and multiplying by powers of 10, as part of its school-curriculum lessons. For fast, automatic calculation, a dedicated trainer gives you more repetition and control over the operation, number type and difficulty you practice.

Duolingo’s math course covers grades 2 to 12, which suits adults refreshing school topics. Adults who want to calculate faster at work, in interviews or in daily life get more from speed training. Numbio drills percentages, decimals, fractions and large numbers at four difficulty levels.

Yes. Keep your Duolingo streak for languages or school math, and add a short Numbio session for speed. One app to learn, one to practice.

Yes. Kids start with easy addition and times tables and move up through four levels. Games like Sudoku and Magic Square add variety, and the same app grows with them, all the way to adult-level calculations.

Yes. The tests, all four games and the tricks library are free, with no account needed. Numbio Pro unlocks the full trainer and trick practice.

The Giving Dragon
May 14, 2024
•
United States
“I have been using it everyday and have already noticed a significant improvement in my ability to do mental math.”
Zenning out
Oct 29, 2024
•
United States
“Time to dust off elementary arithmetic! I like this app a lot. I can set a daily goal, build a streak of daily practice, and set difficulty level.”
DrakeNAd
Jan 28, 2026
•
United States
“This app provides the unique ability to practice verbal mental math, a skill I believe is different from mental math…”
Silenthill57
Sep 21, 2026
•
United States
“This is exactly what a brain-training app should be: challenging, enjoyable, and something you actually look forward to opening every day.”
Deuce McShneebs
Oct 10, 2025
•
United States
“Helps improve mental math speed and wake the brain up a bit. Like hi-performance flash cards.”
LilTooth18
Dec 16, 2025
•
United States
“I am an almost 30 year old… Practicing these sets 5 times a day for 2 weeks has already improved my ability!”

Try the tests and games free, no account needed.

For iPhone and iPad.