Monster Math: Games For Kids

Review by eFreeware

Monster Math is a free educational game from Makkajai. The premise is simple: a monster named Maxx travels through worlds to rescue his friend Dextra, and every step of that journey is gated behind arithmetic. Addition, subtraction, multiplication and division are the whole substance of the game, aimed at children in first through third grade.

The reason to consider it is that the math is not bolted on as a quiz between cartoon scenes. The developer describes mechanics built to test several skills at once and nudge a child toward the right answer, rather than simply marking it wrong. For a parent looking for regular arithmetic practice that a child will actually return to, that combination of story and adaptive difficulty is the main draw.

How the adventure and the arithmetic fit together

Maxx's rescue mission supplies the structure. Children play through multiple worlds, following a story that is carried along by voice-over narration, and battles with enemies and encounters with allies mark the progress. The math sits inside those encounters, so a child is answering arithmetic questions as part of the action rather than in a separate drill screen.

The content spans the arithmetic a child meets in the first few school years. Addition and subtraction go up to 5, 10 and 20, then move into two-digit sums without carrying over and two-digit subtraction without borrowing. Multiplication and division cover the tables from 1 through 10, dividing by numbers 1 to 10, and multiplying single-digit numbers by multiples of ten.

The multiple-level system is designed to lead struggling children toward correct answers instead of leaving them stuck. The developer aligns the content with Common Core standards 2.OA.B.2, 3.OA.C.7, 3.NBT.A.2 and 3.NBT.A.3, which is useful if you want practice that maps onto what a classroom is teaching. A child who needs the same fact pattern several times before it sticks is the child this structure is built for.

Story mode, practice mode and playing together

Alongside the adventure there is a practice mode that strips out the rescue narrative. In that mode a child works through random levels and skills without the pressure of saving Maxx's friends, which makes it the calmer option for a short session or for a child who finds the story sections overstimulating. Both modes draw on the same pool of arithmetic.

Multiplayer is handled in two ways. A parent can play alongside a child. The developer presents that competition as motivation, and for children who respond to a scoreboard it is likely to be the part that keeps them coming back. A child who prefers to work quietly can stay in the story or practice mode.

For households with more than one child, the parental section allows skills to be selected so that practice is limited to particular areas, and those settings can be configured separately for each child. That means a first grader drilling addition to 20 and an older sibling working on division tables can use the same app without sharing a difficulty setting.

What parents can see about progress

Progress reporting is one of the more substantial parts of the package. Parents can see how a child is doing against the Common Core standards the app covers, get a snapshot of where help is needed, and read a skill-by-skill breakdown. For anyone trying to work out whether a child has genuinely understood a topic or is just clicking through, that level of detail is more useful than a single percentage.

The reporting is tied to the skills the app actually teaches, so it reflects performance on addition, subtraction, multiplication and division rather than a broader picture of schoolwork. Used alongside what a teacher reports, it gives a reasonably concrete view of which facts a child has mastered and which still need repetition.

Cost, subscriptions and what comes with the download

Monster Math is free to download, carries no third-party advertising, and has no consumable purchases. That combination matters for a children's app, since it means the game does not interrupt play with adverts or push repeated small transactions.

There are in-app purchases, and the developer sets out how they work. The app can be bought on its own or as part of a Makkajai subscription, and those subscriptions are annual and renew automatically. The Genius tier is listed at $29.99 per year. Payment is charged at confirmation of purchase, renewal happens unless auto-renew is switched off at least 24 hours before the period ends, and subscriptions can be managed or canceled from the account settings, though cancellation does not take effect until the current billing cycle finishes.

If you are considering the subscription route, the practical point is the annual term rather than a monthly one, so it is worth deciding before you commit whether the app is going to be part of your child's routine for a full year. The app was released in April 2020 and its most recent update, at the end of September 2026, was described as bug fixes and improvements.

The child this app is built for

This is arithmetic practice for a child in the first three grades who is working on number facts and needs repetition without it feeling like a worksheet. The narrated adventure gives that repetition a purpose, and the adaptive level system means the difficulty should move with the child rather than sitting at one fixed setting.

It also suits a parent who wants a hand in what gets practiced. Skill filtering, per-child settings and the skill-by-skill reports all point to an app meant to be set up and monitored by an adult, not simply handed over. If you want to steer practice toward the specific facts a teacher has flagged, those controls are the reason to pick this over a general quiz app.

The multiplayer option adds a competitive layer that some children will enjoy and others will ignore. Taken together, the app covers a narrow band of math deliberately: it is about fluency with basic facts, and the content list ends at two-digit sums without carrying, tables to ten and single-digit multiples of ten. Children working beyond that range will have outgrown what is here.

A worthwhile download for early arithmetic practice

Monster Math does one job and does it in a way a child is likely to tolerate: it wraps addition, subtraction, multiplication and division practice in a narrated rescue story, then gives parents the controls and the reporting to keep that practice pointed at the right skills. The absence of third-party ads and consumable purchases removes the usual friction in apps of this type.

With more than 100,000 installs and a 4.5 average from 1,736 ratings, it has clearly found an audience among families doing exactly this kind of practice. The free download makes it easy to see whether the story and the level pacing hold your child's attention before you consider the annual subscription.

I would suggest it to parents of first, second and third graders who want steady arithmetic repetition with some oversight built in, and to anyone whose child responds better to a game with characters and a goal than to flashcards. If your child is already past two-digit sums and the tables to ten, the content here will run out quickly.

What's new in version 369.5.7

* Bug fixes and improvements