Comparison

Number Frames, 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 Frames, by MLC

This app provides virtual number frames to help elementary students visualize and manipulate numbers up to one hundred. It supports counting, comparing, and computing, aiding the transition from one-by-one counting to more efficient strategies. Custom frames can be created for advanced visualization of factors and fractions.

Highlights
  • Standard and custom number frames
  • Variety of counters and colors
  • 5s grid for grouping emphasis
  • Resizable covers for problem modeling
  • Drawing and annotation tools
  • Math text and writing tools
  • Shareable work via image or code
Features
Read full description

Number Frames help students structure numbers to five, ten, twenty, and one hundred. Students use the frames to count, represent, compare, and compute with numbers in a particular range. The frames allow students see quantities as equal groups of other quantities and in relation to benchmark quantities. This helps primary students move away from one-by-one counting toward more efficient ways of counting and computing. As students advance, custom frames can be constructed to help visualize factors, products, fractional parts and more. These virtual versions of number frames are open-ended educational tools, ideal for elementary classrooms and other learning environments that use iPads. Number frames are a key model used in Bridges in Mathematics, second edition. Online preview available at: www.mathlearningcenter.org/bridges FEATURES: • Use standard 5-, 10-, 20-, and 100-frames, or create custom frames up to 12 x 12. • Choose from a variety of counters and colors. Drag single counters — or stacks of 5 and 10 — into frames or on to the workspace. • Apply a 5s grid to frames to emphasize every 5th line and reinforce grouping by five. • Hide and reveal counters 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 Frames, by MLC at 4.0 against 6th Grade Math's 3.3. Number Frames, by MLC also leads on in-app purchases (none vs 1) and review sentiment (89% vs 67%). 6th Grade Math's advantage is update cadence (every 4 months vs every 13 months) and device support (3 vs 1). On price, ratings volume, 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 Frames, by MLC asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Number Frames, by MLC holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 89% of Number Frames, by MLC's written reviews are positive against 67% of 6th Grade Math's.

UpkeepUpdate frequency

Number Frames, by MLC ships an update every 13 months, 6th Grade Math every 4 months. The most recent releases landed on September 16, 2026 and July 21, 2026 respectively.

Scorecard6 real differences · 4 level
Number Frames, by MLC versus 6th Grade Math: the parameters behind the verdict, then further details
ParameterNumber Frames, by MLC6th Grade Math
PriceFreeFree
Rating4.0 (7 ratings) — better3.3 (3 ratings)
Positive reviews88.9% of reviews — better66.7% of reviews
Number of ratings7 — better3
Update frequencyEvery 13 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.415.0 — better
Further details — not scored
Size12 MB391 MB
Age rating4+4+
DeveloperThe Math Learning CenterGilbert Reilly

Customer experience

Number Frames, by MLC

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews9 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

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 Frames, 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 Frames, by MLC free?
Number Frames, 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 Frames, by MLC or 6th Grade Math?
Number Frames, by MLC is rated higher. Number Frames, by MLC averages 4.0 out of 5 from 7 ratings, while 6th Grade Math averages 3.3 from 3 ratings.
Do Number Frames, by MLC or 6th Grade Math have ads?
Neither Number Frames, by MLC nor 6th Grade Math shows ads.
Which is updated more often, Number Frames, by MLC or 6th Grade Math?
Number Frames, by MLC ships an update every 13 months, and 6th Grade Math every 4 months. Most recently, Number Frames, by MLC was updated on September 16, 2026 and 6th Grade Math on July 21, 2026.

Other comparisons