Common Challenges
Forced Learning
While school homework is important, it often feels like a passive task forced upon the child.
Homework dominates study time, making it difficult to foster a child-led learning habit at home.
SumliaHabit-forming Math App
Not just a math app, but an engine for building "Intrinsic Motivation".By combining computational drilling with behavioral reinforcements and immediate feedback, we nurture a child's natural desire to learn.
$9.99 / mo | Cancel anytime


A completely new way to build habits and confidence.
Common Challenges
While school homework is important, it often feels like a passive task forced upon the child.
Homework dominates study time, making it difficult to foster a child-led learning habit at home.

Gets extremely frustrated with errors and refuses to try new, challenging problems.
Tired of repetitive methods and feels heavy-hearted even before sitting at the desk. Has lost motivation to learn.
Busy with work and chores, lacking the bandwidth to sit beside them constantly. Yet, leaving them alone means no studying happens.
Want to tell them "Good job", but struggling to identify exactly what has improved, making encouragement vague or difficult.
Accumulating small wins through behavioral learning science.
Compete with yesterday's self, not others. Tangible progress like "I got faster than yesterday" builds rock-solid confidence.
Mistakes aren't shameful; they are proof of trying. A safe environment without penalty points unlocks independent learning.
We don't tackle high walls right away. Climbing small stairs labeled "I can do this" eventually takes them to great heights.
10 minutes of pure focus, then done. Short, daily repetition builds much stronger habits than long, dreadful study sessions.

A system designed so kids naturally want to "do more".

5–10 minute calculation exercises starting with a difficulty level they definitely "can do".

Faster than "themselves from before". Hard work becomes visual flowers, transforming into confidence.

Built confidence naturally leads them to set their own goals like "I want to do this next."
The core goal is not to cram more knowledge, but toincrease the tangible feeling of progress.
The shorter the distance between effort and result, the more likely a child is to choose the next challenge.
We skip complex geometry and word problems intentionally, focusing purely on building rigorous applied skills within computation.
Reason
The distance between effort and result is short, leaving a sense of achievement right on the spot.
Reason
Clear comparisons with yesterday allow both the child and parents to share a solid sense of forward progress.
Reason
Core computational skills create mental bandwidth for applied thinking.As calculation becomes automatic, more cognitive resources are freed up for complex geometry and word problems.
Designing the velocity at which effort becomes reality.
Short effort → immediate feedback → next challenge. Connecting these unbroken links makes learning shatterproof.
We adapt entirely to your child's "current abilities", unconstrained by their school grade.
STEP 1
Always begin with "problems they can solve" to remove any cognitive hurdles.
STEP 2
Iterate between basic and slightly challenging steps in micro-increments, trying various approaches to solidify habits.
STEP 3
Using accuracy and speed data, we guide them to the next challenge without overstretching.
STEP 4
Progressing purely based on mastery—from integers to decimals and fractions—building arithmetic skills steadily.
Note
This is not a test-prep app aligned with standard school textbooks. It is an adaptive design aimed at solidifying computational foundations based on your child's true mastery level.
Our Promise to You
Billed monthly, cancel anytime
Legacy Guarantee included
Legacy Guarantee included
Currently, Sumlia is offering Early Access specifically for families who resonate with our educational philosophy and want to watch their children grow from a long-term perspective.
We don't offer free trials, but as a commitment and thank you to early adopters joining us during development, we offer a"Permanent Legacy Guarantee"—securing your access price forever.
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This app exists for far more than just boosting math scores.Through the simple process of gaining computational speed and turning "I can't" into "I can", we want children to visceralize the feeling that"I can do it if I try."We built this with the unwavering desire to install the ultimate life pillar: the power to independently think and push forward without fear of failure.