# Number Rack, by MLC vs Document Camera

The clearest difference is rating: Document Camera at 4.5 against Number Rack, by MLC's 3.2. Document Camera also leads on update cadence (monthly vs every 25 months) and ratings volume (338 vs 9). Number Rack, by MLC's advantage is review sentiment (100% vs 62%) and iOS requirement (14.7 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Document Camera holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: Document Camera has 338 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 100% of Number Rack, by MLC's written reviews are positive against 62% of Document Camera's, so the app with the better star average is not the one people write more warmly about.

Number Rack, by MLC ships an update every 25 months, Document Camera monthly. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Number Rack, by MLC | Document Camera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (9 ratings)](https://appshunter.io/ios/app/number-rack-by-mlc/id1469094747/reviews) | **[4.5 (338 ratings)](https://appshunter.io/ios/app/document-camera/id1529027635/reviews)** |
| Number of ratings | 9 | **338** |
| Positive reviews | **100.0% of reviews** | 61.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Monthly** |
| Monetization | Free | Free |
| Size | 4 MB | 20 MB |
| Requires iOS | **14.7** | 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 Rack, by MLC

[App page](https://appshunter.io/ios/app/number-rack-by-mlc/id1469094747)

This virtual manipulative tool helps children develop number sense through interactive bead groupings. It supports exploration of addition and subtraction strategies with customizable rows and colors. Ideal for elementary classrooms, it includes annotation and sharing features.

**Highlights:** 1-10 rows of 10 beads, Resizable bead covers for subtraction, Color-coded bead rows, Annotation and drawing tools, Math text and writing tools, Shareable work via image or code

**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 Rack, by MLC free?

Number Rack, 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 Rack, by MLC or Document Camera?

Document Camera is rated higher. Number Rack, by MLC averages 3.2 out of 5 from 9 ratings, while Document Camera averages 4.5 from 338 ratings.

### Do Number Rack, by MLC or Document Camera have ads?

Neither Number Rack, by MLC nor Document Camera shows ads.

### Which is updated more often, Number Rack, by MLC or Document Camera?

Number Rack, by MLC ships an update every 25 months, and Document Camera monthly. Most recently, Number Rack, by MLC was updated on September 28, 2026 and Document Camera on October 5, 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.*