Comparison

Big Math vs Science Audio eBooks Lite 1

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

Head to head
About

Big Math

Features
Read full description

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

Science Audio eBooks Lite 1

Features
Read full description

Discover Science Through Reading, Listening & Exploration! Make science fun and engaging for young learners with Science Audio eBooks Lite, an interactive collection of illustrated science books featuring synchronized text and audio narration. Designed for children ages 5–8, these engaging eBooks introduce essential Grade 1 science concepts while helping kids develop reading skills, expand their vocabulary, and nurture their natural curiosity. READ, LISTEN & LEARN • Synchronized Text & Audio: Follow along as the narration brings each science story to life. • Colorful Illustrations: Explore science concepts through engaging pictures and easy-to-understand explanations. • Early Reading Development: Build reading confidence, vocabulary, and listening comprehension. • Science Made Fun: Discover plants, animals, Earth science, and the natural world. WHAT'S INCLUDED IN THE LITE VERSION? Enjoy illustrated science audio eBooks covering: • Plants • Animals • Earth Science • Natural Resources The Life version has 8 eBooks, the Full version has 30. EXPLORE MORE WITH THE FULL VERSION Unlock a complete collection of 30 science audio eBooks covering: • Plants • Animals • Living Things • Different Environments • Weather • Seasons • Solids, Liquids & Gases • Changes in States of Matter PERFECT FOR YOUNG LEARNERS Whether at home, in the classroom, or on the go, Science Audio eBooks make it easy for children to explore science while practicing essential reading and listening skills. Ideal for parents, teachers, homeschool families, and curious young minds. Inspire curiosity. Build reading skills. Discover science!

Screenshots

Science Audio eBooks Lite 14 screens

Verdict

The call

The clearest difference is price: Science Audio eBooks Lite 1 at Free against Big Math's $1.99. Science Audio eBooks Lite 1 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.6). Big Math's advantage is update cadence (every 11 months vs every 40 months). On ads and in-app purchases there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Science Audio eBooks Lite 1 is free to download; Big Math costs $1.99 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, Science Audio eBooks Lite 1 every 40 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard4 real differences Ā· 2 level
Big Math versus Science Audio eBooks Lite 1: the parameters behind the verdict, then further details
ParameterBig MathScience Audio eBooks Lite 1
Price$1.99Free — better
Update frequencyEvery 11 months — betterEvery 40 months
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.613.0 — better
Further details — not scored
Size18 MB22 MB
Age rating4+4+
DeveloperEaglet LLCKnowleMedia

In-app purchases

None

Big Math

No in-app purchases

None

Science Audio eBooks Lite 1

No in-app purchases

Questions

Is Big Math free?
Big Math costs $1.99, with no in-app purchases.
Is Science Audio eBooks Lite 1 free?
Science Audio eBooks Lite 1 is free to download, with no in-app purchases.
Do Big Math or Science Audio eBooks Lite 1 have ads?
Neither Big Math nor Science Audio eBooks Lite 1 shows ads.
Which is updated more often, Big Math or Science Audio eBooks Lite 1?
Big Math ships an update every 11 months, and Science Audio eBooks Lite 1 every 40 months. Most recently, Big Math was updated on October 29, 2026 and Science Audio eBooks Lite 1 on October 27, 2026.

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