Comparison

Ace Math Flash Cards 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

Ace Math Flash Cards

Practice fundamental arithmetic operations with customizable flashcards. Focus on specific math skills by setting your own problem parameters and choose from various operators. Enhance learning with features like multiple choice, mistake review, and timed sessions.

Highlights
  • Customizable problem sets
  • Addition, subtraction, multiplication, division
  • Multiple choice option
  • Redo mistakes feature
  • Timed practice sessions
  • Mix operators
Features
Read full description

Math Cards ! ! is a great way to learn and practice addition, subtraction, multiplication, and division. Customize your own problem sets to focus on your needs. Set the top numbers and bottom numbers for each operator. Original Version Features: 1) Choose from the following operators: +, -, x, ÷ 2) Set the top and bottom addends for addition 3) Set the top and bottom numbers for subtraction 4) Set the top and bottom factors for multiplication 5) Set the divisors and quotients for division 6) Allow negative answers for subtraction if desired 7) Set the timer on or off 8) Set the number of problems in the problem set Additional Features in This Version: 1) Multiple choice option 2) Random or sequential card order 3) "Redo Mistakes" button for additional practice of incorrectly answered problems 4) "Mix" operator to mix operators (+,-,x,÷) in problem set 5) Larger top and bottom addends for addition 6) Larger top and bottom numbers for subtraction 7) Larger top and bottom factors for multiplication 8) Larger divisors and quotients for division 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

Ace Math Flash Cards4 screens

Verdict

The call

The clearest difference is ads: Number Line, by MLC at none against Ace Math Flash Cards's shown. Number Line, by MLC also leads on rating (4.4 vs 4.0) and monetization model (free vs ad-supported). Ace Math Flash Cards's advantage is ratings volume (2K vs 15) and review sentiment (85% vs 67%). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

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: Ace Math Flash Cards has 2K ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 85% of Ace Math Flash Cards's written reviews are positive against 67% of Number Line, by MLC's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ace Math Flash Cards ships an update every 8 months, Number Line, by MLC every 13 months. Both last shipped on November 6, 2026.

Scorecard6 real differences · 4 level
Ace Math Flash Cards versus Number Line, by MLC: the parameters behind the verdict, then further details
ParameterAce Math Flash CardsNumber Line, by MLC
PriceFreeFree
Rating4.0 (2K ratings)4.4 (15 ratings) — better
Positive reviews84.9% of reviews — better66.7% of reviews
Number of ratings2K — better15
Update frequencyEvery 8 months — betterEvery 13 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.0 — better16.1
Further details — not scored
Size13 MB7 MB
Age rating4+4+
DeveloperHorizon Business, Inc.The Math Learning Center

Customer experience

Ace Math Flash Cards

All ratings1,982 ratings
Positive73.6%
Neutral5.8%
Negative20.7%
Written reviews93 reviews
Positive84.9%
Neutral6.5%
Negative8.6%

Number Line, by MLC

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

Bugs and requests

Ace Math Flash Cards

Reported bugs

2 issues
  • Addition and subtraction questions limited to 9 problems
  • Multiple choice option not working on iPad

Requested features

3 requests
  • Provide correct answers when mistakes are made
  • Expand question range and customization options
  • Add more visual/audio feedback for progress

Number Line, by MLC

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Ace Math Flash Cards

No in-app purchases

None

Number Line, by MLC

No in-app purchases

Questions

Is Ace Math Flash Cards free?
Ace Math Flash Cards 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, Ace Math Flash Cards or Number Line, by MLC?
Number Line, by MLC is rated higher. Ace Math Flash Cards averages 4.0 out of 5 from 2K ratings, while Number Line, by MLC averages 4.4 from 15 ratings.
Do Ace Math Flash Cards or Number Line, by MLC have ads?
Ace Math Flash Cards shows ads; Number Line, by MLC does not.
Which is updated more often, Ace Math Flash Cards or Number Line, by MLC?
Ace Math Flash Cards ships an update every 8 months, and Number Line, by MLC every 13 months. Most recently, Ace Math Flash Cards was updated on November 6, 2026 and Number Line, by MLC on November 6, 2026.

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