# Think 3D vs Number Line, by MLC

The clearest difference is update cadence: Think 3D at monthly against Number Line, by MLC's every 13 months. Think 3D also leads on review sentiment (80% vs 67%) and device support (3 vs 1). On price, rating, ads and in-app purchases 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 — 4.5 for Think 3D against 4.4 for Number Line, by MLC. Both are backed by a comparable volume of ratings — 45 and 15 respectively. Written reviews are what separate them: 80% of Think 3D's written reviews are positive against 67% of Number Line, by MLC's.

Think 3D ships an update monthly, Number Line, by MLC every 13 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Think 3D | Number Line, by MLC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (45 ratings)](https://appshunter.io/ios/app/think-3d/id463364378/reviews)** | [4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews) |
| Number of ratings | **45** | 15 |
| Positive reviews | **80.5% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 13 months |
| Monetization | Free | Free |
| Size | 5 MB | 7 MB |
| Requires iOS | **13.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hangas](https://appshunter.io/developer/433121902) | [The Math Learning Center](https://appshunter.io/developer/1542700905) |

## What reviewers say

### Think 3D

[App page](https://appshunter.io/ios/app/think-3d/id463364378)

Explore and manipulate 3D shapes on your screen with intuitive controls. Create unique, colorful combinations and save or share your designs. Perfect for anyone interested in 3D modeling and design.

**Highlights:** Explore and interact with 3D shapes, Create unlimited combinations, Add or remove shapes easily, Rotate and zoom 3D creations, Save and share designs, Print 3D creations

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Think 3D free?

Think 3D 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, Think 3D or Number Line, by MLC?

Think 3D is rated higher. Think 3D averages 4.5 out of 5 from 45 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.

### Do Think 3D or Number Line, by MLC have ads?

Neither Think 3D nor Number Line, by MLC shows ads.

### Which is updated more often, Think 3D or Number Line, by MLC?

Think 3D ships an update monthly, and Number Line, by MLC every 13 months. Most recently, Think 3D was updated on November 1, 2026 and Number Line, by MLC on November 6, 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.*