# Number Line, by MLC vs Digestive System Flashcards

The clearest difference is price: Number Line, by MLC at Free against Digestive System Flashcards's $2.99. Digestive System Flashcards's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.1). On update cadence, ads and in-app purchases there is nothing between them.

Number Line, by MLC is free to download; Digestive System Flashcards costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Number Line, by MLC ships an update every 13 months, Digestive System Flashcards every 22 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Number Line, by MLC | Digestive System Flashcards |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 22 months |
| Monetization | Free | — |
| Size | 7 MB | 19 MB |
| Requires iOS | 16.1 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [Hasan Cakir](https://appshunter.io/developer/814343093) |

## 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


### Digestive System Flashcards

[App page](https://appshunter.io/ios/app/digestive-system-flashcards/id1415700973)

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

**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 Digestive System Flashcards free?

Digestive System Flashcards costs $2.99, with no in-app purchases.

### Do Number Line, by MLC or Digestive System Flashcards have ads?

Neither Number Line, by MLC nor Digestive System Flashcards shows ads.

### Which is updated more often, Number Line, by MLC or Digestive System Flashcards?

Number Line, by MLC ships an update every 13 months, and Digestive System Flashcards every 22 months. Most recently, Number Line, by MLC was updated on November 6, 2026 and Digestive System Flashcards on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*