Comparison

Robo Math Number Line Galaxy vs Interactive Number Line

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

Head to head
About

Robo Math Number Line Galaxy

This app helps young learners practice fundamental math skills like addition, subtraction, and multiplication using an interactive number line. It features 15 planets to explore and an empty number line for experimentation, aligning with K1-4 and UK KS1/KS2 math curricula.

Highlights
  • 15 planets to explore
  • Addition and subtraction practice
  • Number bond exercises
  • Multiplication support
  • Empty number line for experimentation
  • Aligns with K1-4 and UK KS1/KS2 curriculum
Features
Read full description

Number Line Galaxy includes: * 15 Planets to explore * Simple addition and subtraction, * Number bond practice (1-10 and 1-20), * Multiplication support with adapted number lines, * NEW empty number line to allow kids to experiment with the tool and to use the number line with their everyday math. A number line is a straight, horizontal line with numbers placed at even increments along the length. Based around K1-4 and the new UK KS1 and KS2 Maths National Curriculum, Number Line Galaxy covers; basic addition, number bonds, subtraction and multiplication. Number lines are used in schools all around the world and research has shown the importance of the number line as a tool for helping children develop greater flexibility in mental arithmetic.

About

Interactive Number Line

Features
Read full description

The Interactive Number Line is a learning tool that provides practice in several important areas of the elementary school math curriculum. Skills: Counting and Patterns Addition Subtraction Fractions Decimals Percents Integers When using the app students are prompted to find a specific number on the number line by sliding a marker to the correct position. Skills required involve: counting in patterns, adding and subtracting one and two digit numbers, equivalent fractions, ordering decimals and percents, locating positive and negative integers on a number line. Problem sets are randomly generated so the app presents a unique experience each time it is used. The Interactive Number Line is a great tool for teacher lead classroom presentations and also individual student use.

Screenshots

Robo Math Number Line Galaxy4 screens

Verdict

The call

The clearest difference is update cadence: Robo Math Number Line Galaxy at every 2 months against Interactive Number Line's every 35 months. Interactive Number Line's advantage is price ($0.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Robo Math Number Line Galaxy costs $2.99 and Interactive Number Line $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Robo Math Number Line Galaxy ships an update every 2 months, Interactive Number Line every 35 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 8 level
Robo Math Number Line Galaxy versus Interactive Number Line: the parameters behind the verdict, then further details
ParameterRobo Math Number Line GalaxyInteractive Number Line
Price$2.99$0.99 — better
Rating5.0 (1 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 35 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPad, Apple TV
Requires iOS12.012.0
Further details — not scored
Size16 MB20 MB
Age rating4+4+
DevelopermadebyeducatorsVentura Educational Systems

In-app purchases

None

Robo Math Number Line Galaxy

No in-app purchases

None

Interactive Number Line

No in-app purchases

Questions

Is Robo Math Number Line Galaxy free?
Robo Math Number Line Galaxy costs $2.99, with no in-app purchases.
Is Interactive Number Line free?
Interactive Number Line costs $0.99, with no in-app purchases.
Do Robo Math Number Line Galaxy or Interactive Number Line have ads?
Neither Robo Math Number Line Galaxy nor Interactive Number Line shows ads.
Which is updated more often, Robo Math Number Line Galaxy or Interactive Number Line?
Robo Math Number Line Galaxy ships an update every 2 months, and Interactive Number Line every 35 months. Most recently, Robo Math Number Line Galaxy was updated on November 1, 2026 and Interactive Number Line on October 26, 2026.

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