# Second Grade Math Trainer vs The Number Line

The clearest difference is price: The Number Line at Free against Second Grade Math Trainer's $2.99. Second Grade Math Trainer's advantage is ads (none vs shown) and iOS requirement (12.0 vs 16.6). On update cadence, in-app purchases and device support there is nothing between them.

The Number Line is free to download; Second Grade Math Trainer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Second Grade Math Trainer ships an update every 26 months, The Number Line every 21 months. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Second Grade Math Trainer | The Number Line |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/the-number-line/id1611914396/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 21 months** |
| Monetization | — | Free |
| Size | 17 MB | 9 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [H Valeur](https://appshunter.io/developer/621824042) |

## What reviewers say

### Second Grade Math Trainer

[App page](https://appshunter.io/ios/app/second-grade-math-trainer/id1312646153)

**Features:** macOS Compatibility

**In-app purchases:** none


### The Number Line

[App page](https://appshunter.io/ios/app/the-number-line/id1611914396)

This app allows users to visualize numbers on a number line and calculate the absolute difference between two numbers. It functions offline, making it accessible anytime and anywhere. Designed for ease of use and speed, it aims to be a go-to math tool.

**Highlights:** Number line visualization, Absolute difference calculator, Offline functionality, Intuitive interface, Fast operation, Supports positive and negative numbers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Second Grade Math Trainer free?

Second Grade Math Trainer costs $2.99, with no in-app purchases.

### Is The Number Line free?

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

### Do Second Grade Math Trainer or The Number Line have ads?

The Number Line shows ads; Second Grade Math Trainer does not.

### Which is updated more often, Second Grade Math Trainer or The Number Line?

Second Grade Math Trainer ships an update every 26 months, and The Number Line every 21 months. Most recently, Second Grade Math Trainer was updated on September 28, 2026 and The Number Line on October 15, 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.*