Comparison

GenomeCache 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

GenomeCache

Explore the human genome through a virtual scavenger hunt, learning about genetic points of interest and their contribution to human traits. Test your knowledge with trivia and compete on a leaderboard.

Highlights
  • Virtual scavenger hunt through the human genome
  • Learn about genetic points of interest
  • Discover how genes contribute to human traits
  • Engage with fun facts
  • Test knowledge with trivia questions
  • Post high scores to a leaderboard
Features
Read full description

Genome Cache™ has been developed by the Educational Outreach Team at the HudsonAlpha Institute for Biotechnology in Huntsville, Alabama. It can be used on McMillian Park, located on the HudsonAlpha campus in Huntsville or in conjunction with the GenomeCache website (genomecache.hudsonalpha.org), anyone anywhere can create their own GenomeWalk. The app includes a total of 20 different pathways through the human genome to choose from, each highlighting 15 genetic points of interest. Explore the human genome through a virtual scavenger hunt, learn about how genes contribute to human traits, engage with fun facts, and test your knowledge with a trivia questions. Get points by finding each location and answering the trivia questions correctly and post your high score to the leader board.

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

GenomeCache4 screens

Verdict

The call

The clearest difference is review sentiment: Number Line, by MLC at 67% against GenomeCache's 44%. Number Line, by MLC also leads on rating (4.4 vs 4.2) and ratings volume (15 vs 5). GenomeCache's advantage is update cadence (every 3 months vs every 13 months) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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 4.2. Both are backed by a comparable volume of ratings — 5 and 15 respectively. Written reviews point the same way: 44% of GenomeCache's written reviews are positive against 67% of Number Line, by MLC's.

UpkeepUpdate frequency

GenomeCache ships an update every 3 months, Number Line, by MLC every 13 months. The most recent releases landed on November 1, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 4 level
GenomeCache versus Number Line, by MLC: the parameters behind the verdict, then further details
ParameterGenomeCacheNumber Line, by MLC
PriceFreeFree
Rating4.2 (5 ratings)4.4 (15 ratings) — better
Positive reviews44.4% of reviews66.7% of reviews — better
Number of ratings515 — better
Update frequencyEvery 3 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS11 — better16.1
Further details — not scored
Size113 MB7 MB
Age rating12+4+
DeveloperHudsonAlpha Institute for BiotechnologyThe Math Learning Center

Customer experience

GenomeCache

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews9 reviews
Positive44.4%
Neutral0.0%
Negative55.6%

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

None

GenomeCache

No in-app purchases

None

Number Line, by MLC

No in-app purchases

Questions

Is GenomeCache free?
GenomeCache 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, GenomeCache or Number Line, by MLC?
Number Line, by MLC is rated higher. GenomeCache averages 4.2 out of 5 from 5 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.
Do GenomeCache or Number Line, by MLC have ads?
Neither GenomeCache nor Number Line, by MLC shows ads.
Which is updated more often, GenomeCache or Number Line, by MLC?
GenomeCache ships an update every 3 months, and Number Line, by MLC every 13 months. Most recently, GenomeCache was updated on November 1, 2026 and Number Line, by MLC on October 9, 2026.

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