Comparison

Big Math vs Curious World

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Big Math

Features
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Big Math is an iPad app for elementary school children to practice addition, subtraction, multiplication and division of big numbers. It has both portrait and landscape orientation. It has a dolphin theme, and when the child has finished a set of problems, a dolphin sound (whistle, scream, yell or motorbike) is heard. The child starts by picking what he or she wants to work on in the Settings screen of the app. Settings options include: * Entering a name and message for the child who will be using the app. The name and message show up throughout the app. * Entering the options for addition, subtraction, multiplication, and/or division. For addition, the child can add 2 numbers, either 2 digit or 3 digit, or 3 numbers, either 2 digit or 3 digit. For subtraction, the child can subtract either 2 digit or 3 digit numbers. For multiplication, the child can multiply 2 digit or three digit numbers. For division (long division), the child can divide with a 1 digit, 2 digit, or 3 digit divisor. The app allows regrouping, where the child can "carry" in addition, multiplication, and division or "borrow" in subtraction and division. The child can elect to have problem sets timed. Once the settings are set, the child goes to the area he or she wants to practice (Big Add, Big Subtract, Big Multiply, or Big Divide), selects the number of problems to do, and starts doing Big Math! Dolphin sounds are courtesy of Dolphin Encounters in the Bahamas! Try it and enjoy!

About

Curious World

Features
Read full description

An educational app for toddlers and Pre-school kids for Elementary school games. Multiple fun learning activities for kids, like Life cycle of plants and animals and Planetarium for kids, based on the kinesthetic learning process. Experts have explained the importance of fun and interactive learning activities for young children. Kids must play and learn at their own speed. The activities should be interesting to keep them occupied, with rewards and appreciation to boost their spirit. This is how we design each game in this collection. With colorful pictures, captivating animation, and enchanting sound effects, young children will love every activity. Help kids to explore and discover the world through colorful puzzles and cool games. Our basic science game for kids, let them understand the structure and behavior of the natural world through simple and colorful activities designed in such a way that it keeps them engrossed for hours. Animations and graphics add to the rich experience in our fun learning games for primary school boys and girls.

Screenshots

Curious World4 screens

Verdict

The call

The clearest difference is update cadence: Curious World at fortnightly against Big Math's every 11 months. Curious World also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.6). Big Math's advantage is price ($1.99 vs $3.99). On ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Big Math costs $1.99 and Curious World $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Big Math ships an update every 11 months, Curious World fortnightly. The most recent releases landed on October 19, 2026 and October 26, 2026 respectively.

Scorecard4 real differences ยท 2 level
Big Math versus Curious World: the parameters behind the verdict, then further details
ParameterBig MathCurious World
Price$1.99 โ€” better$3.99
Update frequencyEvery 11 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod โ€” better
Requires iOS15.613.0 โ€” better
Further details โ€” not scored
Size18 MB2 MB
Age rating4+4+
DeveloperEaglet LLCBe Nguyen

In-app purchases

None

Big Math

No in-app purchases

None

Curious World

No in-app purchases

Questions

Is Big Math free?
Big Math costs $1.99, with no in-app purchases.
Is Curious World free?
Curious World costs $3.99, with no in-app purchases.
Do Big Math or Curious World have ads?
Neither Big Math nor Curious World shows ads.
Which is updated more often, Big Math or Curious World?
Big Math ships an update every 11 months, and Curious World fortnightly. Most recently, Big Math was updated on October 19, 2026 and Curious World on October 26, 2026.

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