# Rounding vs Number Line, by MLC

The clearest difference is in-app purchases: Number Line, by MLC at none against Rounding's 1. Number Line, by MLC also leads on ads (none vs shown) and rating (4.4 vs 4.0). Rounding's advantage is ratings volume (80 vs 15) and device support (3 vs 1). On price, review sentiment, update cadence and iOS requirement there is nothing between them.

Both are free to download. Rounding sells 1 one-off in-app purchase. Number Line, by MLC asks for nothing beyond the download.

Number Line, by MLC holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Rounding has 80 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 64% of Rounding's written reviews are positive against 67% of Number Line, by MLC's.

Rounding ships an update every 12 months, Number Line, by MLC every 13 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Rounding | Number Line, by MLC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (80 ratings)](https://appshunter.io/ios/app/rounding/id572102136/reviews) | **[4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews)** |
| Number of ratings | **80** | 15 |
| Positive reviews | 64.3% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 13 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 14 MB | 7 MB |
| Requires iOS | **15.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Horizon Business, Inc.](https://appshunter.io/developer/431586531) | [The Math Learning Center](https://appshunter.io/developer/1542700905) |

## What reviewers say

### Rounding

[App page](https://appshunter.io/ios/app/rounding/id572102136)

Practice rounding numbers with whole numbers and decimals. Adjust difficulty and place values in settings to master the game. This app makes learning math fun and engaging.

**Highlights:** Rounding whole numbers and decimals, Multiple place values, Customizable settings, Skill mastery focus, Engaging gameplay

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### 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 Rounding free?

Rounding is free to download, with in-app purchases available.

### Is Number Line, by MLC free?

Number Line, by MLC is free to download, with no in-app purchases.

### Which has better reviews, Rounding or Number Line, by MLC?

Number Line, by MLC is rated higher. Rounding averages 4.0 out of 5 from 80 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.

### Do Rounding or Number Line, by MLC have ads?

Rounding shows ads; Number Line, by MLC does not.

### Which is updated more often, Rounding or Number Line, by MLC?

Rounding ships an update every 12 months, and Number Line, by MLC every 13 months. Most recently, Rounding was updated on November 6, 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.*