# Number Line, by MLC vs Preschool Data Toolbox

The clearest difference is rating: Preschool Data Toolbox at 5.0 against Number Line, by MLC's 4.4. Preschool Data Toolbox also leads on update cadence (fortnightly vs every 13 months) and iOS requirement (11.0 vs 16.1). Number Line, by MLC's advantage is ratings volume (15 vs 2). 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.

Preschool Data Toolbox holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Number Line, by MLC has 15 ratings behind it against 2, so its average is the more settled of the two.

Number Line, by MLC ships an update every 13 months, Preschool Data Toolbox fortnightly. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Number Line, by MLC | Preschool Data Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/preschool-data-toolbox/id1609460161/reviews)** |
| Number of ratings | **15** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 7 MB | 53 MB |
| Requires iOS | 16.1 | **11.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [WGBH](https://appshunter.io/developer/324170330) |

## 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


### Preschool Data Toolbox

[App page](https://appshunter.io/ios/app/preschool-data-toolbox/id1609460161)

This app helps young children collect, visualize, and analyze data through interactive investigations. It supports the development of early math skills, computational thinking, and problem-solving with engaging activities and discussion prompts.

**Highlights:** 6 pre-made investigations, Create custom investigations, Data collection within the app, Visualize data with graphs, Data analysis and sorting tools, Discussion prompts for learning, Teacher's Guide with lesson plans

**In-app purchases:** none


## Frequently asked questions

### Is Number Line, by MLC free?

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

### Is Preschool Data Toolbox free?

Preschool Data Toolbox is free to download, with no in-app purchases.

### Which has better reviews, Number Line, by MLC or Preschool Data Toolbox?

Preschool Data Toolbox is rated higher. Number Line, by MLC averages 4.4 out of 5 from 15 ratings, while Preschool Data Toolbox averages 5.0 from 2 ratings.

### Do Number Line, by MLC or Preschool Data Toolbox have ads?

Neither Number Line, by MLC nor Preschool Data Toolbox shows ads.

### Which is updated more often, Number Line, by MLC or Preschool Data Toolbox?

Number Line, by MLC ships an update every 13 months, and Preschool Data Toolbox fortnightly. Most recently, Number Line, by MLC was updated on October 9, 2026 and Preschool Data Toolbox on October 13, 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.*