Comparison

Rounding 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

Rounding

Practice rounding numbers with whole numbers and decimals. Adjust difficulty and place values in settings to master the game. This app makes learning math fun and engaging.

Highlights
  • Rounding whole numbers and decimals
  • Multiple place values
  • Customizable settings
  • Skill mastery focus
  • Engaging gameplay
Features
Read full description

Rounding- is a great way to test your rounding skills and have fun at the same time. Select the number of problems and other options in the "Settings" screen. Play until you master the game. 1) Rounding whole numbers and decimals 2) More place values If you like this app, please consider giving it a rating. Your support will help keep the updates coming! Thank you for your support!

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

Rounding4 screens

Verdict

The call

The clearest difference is in-app purchases: Number Line, by MLC at none against Rounding's 1. Number Line, by MLC also leads on ads (none vs shown) and rating (4.4 vs 4.0). Rounding's advantage is ratings volume (80 vs 15) and device support (3 vs 1). On price, review sentiment, update cadence 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

Both are free to download. Rounding sells 1 one-off in-app purchase. Number Line, by MLC asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Number Line, by MLC holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Rounding has 80 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 64% of Rounding's written reviews are positive against 67% of Number Line, by MLC's.

UpkeepUpdate frequency

Rounding ships an update every 12 months, Number Line, by MLC every 13 months. Both last shipped on November 6, 2026.

Scorecard6 real differences · 4 level
Rounding versus Number Line, by MLC: the parameters behind the verdict, then further details
ParameterRoundingNumber Line, by MLC
PriceFreeFree
Rating4.0 (80 ratings)4.4 (15 ratings) — better
Positive reviews64.3% of reviews66.7% of reviews — better
Number of ratings80 — better15
Update frequencyEvery 12 months — betterEvery 13 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.0 — better16.1
Further details — not scored
Size14 MB7 MB
Age rating4+4+
DeveloperHorizon Business, Inc.The Math Learning Center

Customer experience

Rounding

All ratings79 ratings
Positive72.2%
Neutral7.6%
Negative20.3%
Written reviews14 reviews
Positive64.3%
Neutral0.0%
Negative35.7%

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

1 purchases

Rounding

One-time1
  • Remove Ads$4.99
None

Number Line, by MLC

No in-app purchases

Questions

Is Rounding free?
Rounding is free to download, with in-app purchases available.
Is Number Line, by MLC free?
Number Line, by MLC is free to download, with no in-app purchases.
Which has better reviews, Rounding or Number Line, by MLC?
Number Line, by MLC is rated higher. Rounding averages 4.0 out of 5 from 80 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.
Do Rounding or Number Line, by MLC have ads?
Rounding shows ads; Number Line, by MLC does not.
Which is updated more often, Rounding or Number Line, by MLC?
Rounding ships an update every 12 months, and Number Line, by MLC every 13 months. Most recently, Rounding was updated on November 6, 2026 and Number Line, by MLC on November 6, 2026.

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