Comparison

Number Line, by MLC vs 6th Grade Math

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

Head to head
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

About

6th Grade Math

This app provides a comprehensive review and practice of essential math skills for sixth graders. It covers all Common Core standards with unlimited practice problems, interactive illustrations, and engaging games. Earn rewards and track progress with shareable score summaries.

Highlights
  • Covers all Common Core math standards for 6th grade
  • Unlimited practice problems with random number generation
  • Illustrations to reinforce concepts
  • Earn robots for maze and side-scrolling games
  • Emailable certificates and score summaries
  • Bite-sized concept presentation
Features
Read full description

Auto-renewable subscription 6th Grade Math comes with a 7-day free trial. After this you will be charged $4.99 a month and you can cancel anytime. Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription by visiting your iTunes Account Settings. Privacy policy: https://www.mathgalaxy.com/FQ3_Menu/FQ3_6th_Grade_Privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ "My testing of this app shows me that it is going to be a valuable resource for us as we enter our sixth grade year." See the rest of the review at: https://www.mathgalaxy.com/Smart_Apps_For_Kids_Reviews/Smart_Apps_Review_6th_Grade_Math.html Sixth Grade Math covers all of the Common Core math standards for sixth grade as listed below. The concepts are presented in bite-size pieces with Illustrations used throughout to reinforce the concepts. Note: App needs to be run in LANDSCAPE mode. RATIOS and PROPORTIONAL RELATIONSHIPS (6.RP) Understand ratio concepts and use ratio reasoning to solve problems. Ratios & Proportions Understanding Ratios (6.RP.1) Rates (6.RP.2) Ratios in Tables (6.RP.3a) Ratios on Graphs (6.RP.3a) Proportions (6.RP.3, 3b) Converting Units (6.RP.3d) Similar Figures (6.RP.3) Percents (6.RP.3c) Percents & Decimals Fractions, Decimals, Percents Finding %, Part, Whole Percent Word Problems THE NUMBER SYSTEM (6.NS) Apply and extend previous understandings of multiplication and division to divide fractions by fractions. Compute fluently with multi-digit numbers and find common factors and multiples. Apply and extend previous understandings of numbers to the system of rational numbers. Multiplying Fractions (6.NS.1) Dividing Fractions (6.NS.1) Fraction Word Problems (6.NS.1) Multi-Digit Division (6.NS.2) Decimal Operations (6.NS.3) Factors (GCF & LCM) (6.NS.4) Negative Numbers (6.NS.5, 6) Absolute Value (6.NS.7, 8) Ordering Rational Numbers (6.NS.7) EXPRESSIONS and EQUATIONS (6.EE) Apply and extend previous understandings of arithmetic to algebraic expressions. Exponents (6.EE.1) Translating to Algebra (6.EE.2) Order of Operations (6.EE.2c) Simplifying Expressions (6.EE.3, 4) Reason about and solve one-variable equations and inequalities. Solving Equations & Inequalities (6.EE. 5, 6, 7, 8) The Balance Beam 1-Step The Balance Beam 2-Step 1-Step Equations 2-Step Equations Unknown on Both Sides 1-Step Inequalities 2-Step Inequalities Algebra Word Problems Represent and analyze quantitative relationships between dependent and independent variables. Independent & Dependent Variables (6.EE.9) GEOMETRY (6.G) Solve real-world and mathematical problems involving area, surface area, and volume. Area & Perimeter (6.G.1) Complex Areas (6.G.1) Volume (6.G.2) Area of Polygons (6.G.3) Drawing Polygons (6.G.3) Surface Area with Nets (6.G.4) STATISTICS and PROBABILITY (6.SP) Develop understanding of statistical variability. Summarize and describe distributions. Statistical Questions (6.SP.1) Mean, Median, Mode, Range (6.SP.2, 3) Box-and-Whisker Plots (6.SP.4, 5) Bar Graphs & Histograms (6.SP.4, 5) Pictographs (6.SP.4, 5) Dot Plots (6.SP.4) Histogram Plots (6.SP.4) Bar Plots (6.SP.4) Mean & Median Plots (6.SP.4) GAMES Labyrinth (a maze game - robots are earned in exercises.)

Screenshots

6th Grade Math4 screens

Verdict

The call

The clearest difference is rating: Number Line, by MLC at 4.4 against 6th Grade Math's 3.3. Number Line, by MLC also leads on in-app purchases (none vs 1) and ratings volume (15 vs 3). 6th Grade Math's advantage is update cadence (every 4 months vs every 13 months) and device support (3 vs 1). On price, review sentiment, ads 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. 6th Grade Math sells 1 in-app purchase, starting at $4.99 per month. 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 3.3. That said, the two scores are not equally well evidenced: Number Line, by MLC has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 67% and 67% positive.

UpkeepUpdate frequency

Number Line, by MLC ships an update every 13 months, 6th Grade Math every 4 months. The most recent releases landed on October 9, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
Number Line, by MLC versus 6th Grade Math: the parameters behind the verdict, then further details
ParameterNumber Line, by MLC6th Grade Math
PriceFreeFree
Rating4.4 (15 ratings) — better3.3 (3 ratings)
Positive reviews66.7% of reviews66.7% of reviews
Number of ratings15 — better3
Update frequencyEvery 13 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS16.115.0 — better
Further details — not scored
Size7 MB391 MB
Age rating4+4+
DeveloperThe Math Learning CenterMath Galaxy

Customer experience

Number Line, by MLC

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

6th Grade Math

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Number Line, by MLC

No in-app purchases

1 purchases

6th Grade Math

Subscriptions1
  • 6th Grade Math - Math Galaxy7 Days trial$4.991 Month

Questions

Is Number Line, by MLC free?
Number Line, by MLC is free to download, with no in-app purchases.
Is 6th Grade Math free?
6th Grade Math is free to download, with in-app purchases available.
Which has better reviews, Number Line, by MLC or 6th Grade Math?
Number Line, by MLC is rated higher. Number Line, by MLC averages 4.4 out of 5 from 15 ratings, while 6th Grade Math averages 3.3 from 3 ratings.
Do Number Line, by MLC or 6th Grade Math have ads?
Neither Number Line, by MLC nor 6th Grade Math shows ads.
Which is updated more often, Number Line, by MLC or 6th Grade Math?
Number Line, by MLC ships an update every 13 months, and 6th Grade Math every 4 months. Most recently, Number Line, by MLC was updated on October 9, 2026 and 6th Grade Math on October 22, 2026.

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