Comparison

Itsy Bitsy Spider 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

Itsy Bitsy Spider

An interactive and educational retelling of a classic nursery rhyme for young children. Features include hidden surprises, sing-along recording, and mini-games that teach counting and nature.

Highlights
  • Interactive illustrations with hidden surprises
  • Record your own voice singing
  • Learn about nature with Cloe the fly
  • Counting activities with a squirrel
  • Play peek-a-boo with a frog
  • Watch a caterpillar transform
Read full description

An award-winning original tribute to a childhood classic, Itsy Bitsy Spider offers children a fun, interactive and educational experience. AGES: 2-5. OVERVIEW - 100% interactive illustrations with hidden surprises on every page - Easy navigation – just poke the spider to move to the next scene - Use the record feature to sing along CATEGORY: Nursery Rhyme ACTIVITIES - FOLLOW the spider on an adventure – up, down and all around - LEARN about the environment and nature from Cloe the fly - COUNT with a squirrel as he builds his house - PLAY peek-a-boo with a frog - SING along and record your own voice - LISTEN to classical music performed on a violin and cello - WATCH a caterpillar become a beautiful butterfly
 - COLLECT colorful eggs on the spider web AWARDS - Parents’ Choice Gold Award - Parents’ Choice Foundation - Children’s Technology Review Editor’s Choice Award for Excellence in Design ABOUT DUCK DUCK MOOSE (A subsidiary of Khan Academy) Duck Duck Moose, an award-winning creator of educational mobile apps for families, is a passionate team of engineers, artists, designers, and educators. Founded in 2008, the company has created 21 top-selling titles and has received 21 Parents’ Choice Awards, 18 Children’s Technology Review Awards, 12 Tech with Kids’ Best Pick App Awards, and a KAPi award for “Best Children’s App” at the International Consumer Electronics Show. Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. Duck Duck Moose is now part of the Khan Academy family. Like all Khan Academy offerings, all Duck Duck Moose apps are now 100% free, without ads or subscriptions. For kids ages 2-7, don't miss Khan Academy Kids, our new early learning app to help young children with reading, writing, math and social-emotional development! We’d love to hear from you! Visit us at www.duckduckmoose.com or drop us a line at support@duckduckmoose.com.

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

Verdict

The call

The clearest difference is rating: Number Line, by MLC at 4.4 against Itsy Bitsy Spider's 4.2. Itsy Bitsy Spider's advantage is ratings volume (45 vs 15) and iOS requirement (9.0 vs 16.1). On price, review sentiment, update cadence 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. 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 — 45 and 15 respectively. Written reviews complicate that: 70% of Itsy Bitsy Spider'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

Itsy Bitsy Spider ships an update every 7 months, Number Line, by MLC every 13 months. Both last shipped on November 1, 2026.

Scorecard3 real differences · 7 level
Itsy Bitsy Spider versus Number Line, by MLC: the parameters behind the verdict, then further details
ParameterItsy Bitsy SpiderNumber Line, by MLC
PriceFreeFree
Rating4.2 (45 ratings)4.4 (15 ratings) — better
Positive reviews70.5% of reviews — better66.7% of reviews
Number of ratings45 — better15
Update frequencyEvery 7 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPad
Requires iOS9.0 — better16.1
Further details — not scored
Size26 MB7 MB
Age rating4+4+
DeveloperDuck Duck Moose LLCThe Math Learning Center

Customer experience

Itsy Bitsy Spider

All ratings40 ratings
Positive80.0%
Neutral2.5%
Negative17.5%
Written reviews105 reviews
Positive70.5%
Neutral9.5%
Negative20.0%

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

Itsy Bitsy Spider

Reported bugs

7 issues
  • App won't progress past opening screen after iOS 13 update
  • App won't open at all after recent update
  • Stuck on first page with no way to turn pages
  • Sound not working despite troubleshooting
  • Program crashes and requires restart to change pages
Show 2 more
  • App incompatible with iPad HD version
  • Freezes and performance issues

Requested features

8 requests
  • More nursery rhymes in similar format
  • Additional screens and content
  • Female or child voice option for singing
  • More verses of Itsy Bitsy Spider incorporated
  • Automatic music playback option
Show 3 more
  • Multi-touch support for simultaneous screen touches
  • Ability to switch singer voice
  • More interactive activities and projects

Number Line, by MLC

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Itsy Bitsy Spider

No in-app purchases

None

Number Line, by MLC

No in-app purchases

Questions

Is Itsy Bitsy Spider free?
Itsy Bitsy Spider 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, Itsy Bitsy Spider or Number Line, by MLC?
Number Line, by MLC is rated higher. Itsy Bitsy Spider averages 4.2 out of 5 from 45 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.
Do Itsy Bitsy Spider or Number Line, by MLC have ads?
Neither Itsy Bitsy Spider nor Number Line, by MLC shows ads.
Which is updated more often, Itsy Bitsy Spider or Number Line, by MLC?
Itsy Bitsy Spider ships an update every 7 months, and Number Line, by MLC every 13 months. Most recently, Itsy Bitsy Spider was updated on November 1, 2026 and Number Line, by MLC on November 1, 2026.

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