# Number Line, by MLC vs Document Camera

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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.

## The numbers

| Metric | Number Line, by MLC | Document Camera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews) | **[4.5 (423 ratings)](https://appshunter.io/ios/app/document-camera/id1529027635/reviews)** |
| Number of ratings | 15 | **423** |
| Positive reviews | **66.7% of reviews** | 61.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | Free | Free |
| Size | 7 MB | 20 MB |
| Requires iOS | 16.1 | **16.0** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [SwiftKick Mobile LLC](https://appshunter.io/developer/1136358867) |

## What reviewers say

### Number Line, by MLC

[App page](https://appshunter.io/ios/app/number-line-by-mlc/id751816884)

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:** macOS Compatibility

**In-app purchases:** none


### Document Camera

[App page](https://appshunter.io/ios/app/document-camera/id1529027635)

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great for overhead projector use
- 👍 Fun for playing teacher
- 👍 Works well for screen mirroring
- 👍 Intuitive and does what's needed
- 👍 Works like an Elmo

**What reviewers complain about**

- 🐛 App doesn't open past splash screen
- 🐛 Frozen on splash screen with no controls
- 🐛 Needs access but nothing to select
- 🐛 Stuck on Home Screen after installation
- 🐛 Camera quality is fuzzy and grainy

**Reported bugs**

- 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)

**Requested features**

- Support for portrait mode
- Option to rotate document 90 degrees


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*