Comparison

Think 3D vs Number Line, by MLC

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

Head to head
About

Think 3D

Explore and manipulate 3D shapes on your screen with intuitive controls. Create unique, colorful combinations and save or share your designs. Perfect for anyone interested in 3D modeling and design.

Highlights
  • Explore and interact with 3D shapes
  • Create unlimited combinations
  • Add or remove shapes easily
  • Rotate and zoom 3D creations
  • Save and share designs
  • Print 3D creations
Features
Read full description

Explore and interact with 3D shapes on a screen like you never have before. Fun for 3D fans of any age. Features: • Choose from of a variety of 3D shapes • Create unlimited combinations with colorful shapes • Add or remove shapes with a single tap • Drag one finger to rotate 3D creation in any direction • Zoom in and out for a better view • Swipe to spin in any direction • 3D creations are saved on your device • Share documents with your friends over email • Save images of your creations • Print creations

About

Number Line, by MLC

This app allows students to visualize number sequences and demonstrate mathematical strategies. It supports various number types and offers tools for annotation, problem-solving, and sharing work. Ideal for elementary classrooms and iPad learning environments.

Highlights
  • Visualize number sequences
  • Demonstrate counting, adding, subtracting, multiplying, dividing
  • Use whole numbers, fractions, decimals, or negative numbers
  • Add custom tick marks and labels
  • Hide and reveal numbers and jumps
  • Annotation and drawing tools
  • Save and share work
Features
Read full description

Number Line helps students visualize number sequences and demonstrate strategies for counting, comparing, adding, subtracting, multiplying, and dividing. Choose number lines labelled with whole numbers, fractions, decimals, or negative numbers. Or use a blank number line, with or without tick marks. Describe intervals between points on the line using forward or backward jumps above and below the line. Jumps can be labelled with their values or left blank. Add custom tick marks to the number line to show equivalence or compare number values. Show strategies with drawing and annotation tools. Hide elements of the sequence shown on the number line, which challenges students to use what they know about number relationships and computation to identify those missing elements. This virtual number line is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use iPads. For more Number Line resources and other apps, visit: www.mathlearningcenter.org/apps FEATURES • Mark the number line with multiples of whole numbers, fractions, or decimals. In addition, set the starting value of the line, including using negative values. • Add and manipulate forward and backward jumps, above or below the line. • Label jump bars, manually or automatically, to show intervals or hide labels altogether. • Add custom tick marks and values to blank number lines. • Hide and reveal numbers on the number line. • Hide and reveal jumps, numbers, and other elements with resizable covers to create your own problems and model strategies. • Use the drawing tools to annotate work and show understanding. • Add equations, expressions, and descriptions with the math text and writing tools. • Share your work by saving an image or providing a share code to others. MORE APPS For more Number Line resources and other apps, visit: www.mathlearningcenter.org/apps LEARN MORE To learn about Bridges in Mathematics, an elementary curriculum that employs visual models like number line, visit: www.mathlearningcenter.org/bridges/overview ABOUT US This resource is brought to you by The Math Learning Center, a nonprofit organization dedicated to K-12 education since 1976. ACKNOWLEDGEMENTS This app was crafted by Clarity Innovations. We help improve teaching and learning by creating solutions that match promising technologies with the needs of education. Visit us: www.clarity-innovations.com

Screenshots

Think 3D4 screens

Verdict

The call

The clearest difference is update cadence: Think 3D at monthly against Number Line, by MLC's every 13 months. Think 3D also leads on review sentiment (80% vs 67%) and device support (3 vs 1). On price, rating, ads and in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Think 3D against 4.4 for Number Line, by MLC. Both are backed by a comparable volume of ratings — 45 and 15 respectively. Written reviews are what separate them: 80% of Think 3D's written reviews are positive against 67% of Number Line, by MLC's.

UpkeepUpdate frequency

Think 3D ships an update monthly, Number Line, by MLC every 13 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
Think 3D versus Number Line, by MLC: the parameters behind the verdict, then further details
ParameterThink 3DNumber Line, by MLC
PriceFreeFree
Rating4.5 (45 ratings) — better4.4 (15 ratings)
Positive reviews80.5% of reviews — better66.7% of reviews
Number of ratings45 — better15
Update frequencyMonthly — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS13.0 — better16.1
Further details — not scored
Size5 MB7 MB
Age rating4+4+
DeveloperPaul HangasThe Math Learning Center

Customer experience

Think 3D

All ratings45 ratings
Positive86.7%
Neutral8.9%
Negative4.4%
Written reviews41 reviews
Positive80.5%
Neutral7.3%
Negative12.2%

Number Line, by MLC

All ratings15 ratings
Positive86.7%
Neutral0.0%
Negative13.3%
Written reviews12 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

None

Think 3D

No in-app purchases

None

Number Line, by MLC

No in-app purchases

Questions

Is Think 3D free?
Think 3D is free to download, with no in-app purchases.
Is Number Line, by MLC free?
Number Line, by MLC is free to download, with no in-app purchases.
Which has better reviews, Think 3D or Number Line, by MLC?
Think 3D is rated higher. Think 3D averages 4.5 out of 5 from 45 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.
Do Think 3D or Number Line, by MLC have ads?
Neither Think 3D nor Number Line, by MLC shows ads.
Which is updated more often, Think 3D or Number Line, by MLC?
Think 3D ships an update monthly, and Number Line, by MLC every 13 months. Most recently, Think 3D was updated on November 1, 2026 and Number Line, by MLC on November 6, 2026.

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