Comparison

Number Line, by MLC vs Math Facts Fluency

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

Math Facts Fluency

This app helps children achieve fluency in multiplication and division math facts through timed practice and a rewarding game center. It offers progress tracking and is designed for children with and without special needs, as well as adults learning English.

Highlights
  • Multiplication and division fact practice
  • Timed challenges for fluency
  • Progress tracking and reporting
  • Reward center for motivation
  • Designed for special needs learners
  • Suitable for adults learning ESL
Features
Read full description

** Happy Frog Apps is a Mom’s Choice Award Winner! Also featured on FunEducationalApps.com, TeachersWithApps.com, and more! ** Math Facts Fluency: Easy-to-use, built-in rewards and excellent reporting. The only app you'll need to ensure your child is completely fluent in multiplication and division math facts. What parents say about our awesome apps: *** 5 stars! My son tried other apps, but after using them, I couldn't tell how well he knew his math facts. Was he done? Did he still need practice? With your app, I know exactly how he is doing - and best of all, he LOVES working for the reward game. *** 5 stars! I like how my son can progress independently. The timer feature really ensures fluency. His recall is MUCH improved. Thanks!
 Math Fact fluency is *vital* for math success. Fluency frees up your learner's working memory, allowing more "brain space" for problem solving. Make math easier for your child by ensuring they know their math facts fluently (should be able to answer in about one second!) Math Facts Fluency Builder provides: -- Multiplication and division math facts introduced in learnable groups. -- Built-in timers to ensure fluency at all levels. Earlier levels allow more time. Final levels require FAST answering! -- Students progress only when mastery of the current skill is demonstrated. -- 'At a glance' reporting shows you instantly how your learner is progressing. -- The fun Reward Center motivates even hesitant learners. Our apps are designed for and tested by typical and special needs children. Testers include children with Autism and other special needs. Our apps work for them! Our apps are also suitable for adults dealing with aphasia or learning English as a Second Language. 
To evaluate the app, download the free version, which has four free levels. Additional levels and additional players can be accessed with in-app purchases. (All levels can be purchased for $2.99 -- price may change.)

 If you prefer no in-app purchases, download the School Edition of this app, which includes all levels and up to 10 players. We take customer service very seriously! If you ever have a problem or find that we've missed something, contact us at our website and we will do our best to fix the problem.  We collect NO private information in our app. None! Our apps do not allow unrestricted web or social media access. We conform to the Children's Online Privacy Protection Act.

Screenshots

Math Facts Fluency4 screens

Verdict

The call

The clearest difference is rating: Number Line, by MLC at 4.4 against Math Facts Fluency's 3.0. Number Line, by MLC also leads on in-app purchases (none vs 3) and update cadence (every 13 months vs every 53 months). Math Facts Fluency's advantage is device support (3 vs 1) and iOS requirement (12.2 vs 16.1). On price and ads 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. Math Facts Fluency sells 3 one-off in-app purchases. 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 3.0. That said, the two scores are not equally well evidenced: Number Line, by MLC has 15 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Number Line, by MLC ships an update every 13 months, Math Facts Fluency every 53 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Number Line, by MLC versus Math Facts Fluency: the parameters behind the verdict, then further details
ParameterNumber Line, by MLCMath Facts Fluency
PriceFreeFree
Rating4.4 (15 ratings) — better3.0 (2 ratings)
Positive reviews66.7% of reviews—
Number of ratings15 — better2
Update frequencyEvery 13 months — betterEvery 53 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS16.112.2 — better
Further details — not scored
Size7 MB17 MB
Age rating4+4+
DeveloperThe Math Learning CenterJanine Toole

Customer experience

Number Line, by MLC

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

Math Facts Fluency

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Number Line, by MLC

No in-app purchases

3 purchases

Math Facts Fluency

One-time3
  • 2 Users$1.99
  • All Levels$2.99
  • Up to 10 Users$3.99

Questions

Is Number Line, by MLC free?
Number Line, by MLC is free to download, with no in-app purchases.
Is Math Facts Fluency free?
Math Facts Fluency is free to download, with in-app purchases available.
Which has better reviews, Number Line, by MLC or Math Facts Fluency?
Number Line, by MLC is rated higher. Number Line, by MLC averages 4.4 out of 5 from 15 ratings, while Math Facts Fluency averages 3.0 from 2 ratings.
Do Number Line, by MLC or Math Facts Fluency have ads?
Neither Number Line, by MLC nor Math Facts Fluency shows ads.
Which is updated more often, Number Line, by MLC or Math Facts Fluency?
Number Line, by MLC ships an update every 13 months, and Math Facts Fluency every 53 months. Most recently, Number Line, by MLC was updated on November 6, 2026 and Math Facts Fluency on November 2, 2026.

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