Comparison

Number Line, by MLC vs Document Camera

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

Document Camera

Turn your iPhone into a document camera for seamless workspace sharing. Ideal for remote learning and in-classroom presentations, it integrates with popular video conferencing tools and supports screen mirroring.

Highlights
  • Transform iPhone into a document camera
  • Screen sharing for video conferencing
  • Remote learning tool
  • Smart flashlight and auto-leveling
  • Zoom, pan, and freeze frame
  • AirPlay screen mirroring support
Read full description

Transform your iPhone into the best document camera on the market with Doc Cam! Doc Cam is a straightforward app for sharing your workspace with your students, just like a document camera or old school overhead projector. Doc Cam was designed with the needs of the remote learning classroom in mind. It’s compatible with Zoom, Google Meet, Microsoft Teams, and other services through screen mirroring, all with easy step-by-step guides for setup. For teachers who have already transitioned back to the classroom, you can still use Doc Cam with modern classrooms outfitted with computers or projectors compatible with AirPlay Screen Mirroring. DOC CAM FEATURES 1. Works with Zoom, Google Meet, Screen Mirroring and more. 2. Perfect for remote learning. 3. Zoom and pan the camera. 4. Smart Flashlight - distributes the lighting evenly across the entire document camera image when the flashlight is enabled. 5. Auto Level - keeps the document camera image level even when your phone isn't. 6. Freeze video frame. 7. Transition back to the classroom with AirPlay support. 8. And more!

Screenshots

Document Camera4 screens

Verdict

The call

The clearest difference is update cadence: Document Camera at monthly against Number Line, by MLC's every 13 months. Document Camera also leads on ratings volume (423 vs 15). On price, rating, review sentiment 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

On the App Store both sit at effectively the same score — 4.4 for Number Line, by MLC against 4.5 for Document Camera. That said, the two scores are not equally well evidenced: Document Camera has 423 ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 67% of Number Line, by MLC's written reviews are positive against 62% of Document Camera's.

UpkeepUpdate frequency

Number Line, by MLC ships an update every 13 months, Document Camera monthly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
Number Line, by MLC versus Document Camera: the parameters behind the verdict, then further details
ParameterNumber Line, by MLCDocument Camera
PriceFreeFree
Rating4.4 (15 ratings)4.5 (423 ratings) — better
Positive reviews66.7% of reviews — better61.5% of reviews
Number of ratings15423 — better
Update frequencyEvery 13 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad — better
Requires iOS16.116.0 — better
Further details — not scored
Size7 MB20 MB
Age rating4+4+
DeveloperThe Math Learning CenterSwiftKick Mobile LLC

Customer experience

Number Line, by MLC

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

Document Camera

All ratings338 ratings
Positive84.9%
Neutral5.6%
Negative9.5%
Written reviews13 reviews
Positive61.5%
Neutral0.0%
Negative38.5%

Bugs and requests

Number Line, by MLC

Not enough reviews yet to summarise bugs or requests.

Document Camera

Reported bugs

6 issues
  • App does not open
  • App freezes on splash screen
  • App requires access but no options to select
  • App gets stuck on Home Screen
  • Poor camera quality (fuzzy/grainy)
Show 1 more
  • Limited rotation options

Requested features

2 requests
  • Support for portrait mode
  • Option to rotate document 90 degrees

In-app purchases

None

Number Line, by MLC

No in-app purchases

None

Document Camera

No in-app purchases

Questions

Is Number Line, by MLC free?
Number Line, by MLC is free to download, with no in-app purchases.
Is Document Camera free?
Document Camera is free to download, with no in-app purchases.
Which has better reviews, Number Line, by MLC or Document Camera?
Document Camera is rated higher. Number Line, by MLC averages 4.4 out of 5 from 15 ratings, while Document Camera averages 4.5 from 423 ratings.
Do Number Line, by MLC or Document Camera have ads?
Neither Number Line, by MLC nor Document Camera shows ads.
Which is updated more often, Number Line, by MLC or Document Camera?
Number Line, by MLC ships an update every 13 months, and Document Camera monthly. Most recently, Number Line, by MLC was updated on November 6, 2026 and Document Camera on November 7, 2026.

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