# FlashToPass vs Number Line, by MLC

The clearest difference is in-app purchases: Number Line, by MLC at none against FlashToPass's 3. Number Line, by MLC also leads on iOS requirement (16.1 vs 26.0). FlashToPass's advantage is ratings volume (931 vs 15) and update cadence (every 4 months vs every 13 months). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. FlashToPass sells 3 in-app purchases, starting at $1.99 per month. Number Line, by MLC asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for FlashToPass against 4.4 for Number Line, by MLC. That said, the two scores are not equally well evidenced: FlashToPass has 931 ratings behind it against 15, so its average is the more settled of the two. Written reviews split almost evenly too, at 67% and 67% positive.

FlashToPass ships an update every 4 months, Number Line, by MLC every 13 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | FlashToPass | Number Line, by MLC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (931 ratings)](https://appshunter.io/ios/app/flashtopass-math-flash-cards/id330482882/reviews)** | [4.4 (15 ratings)](https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews) |
| Number of ratings | **931** | 15 |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 21 MB | 7 MB |
| Requires iOS | 26.0 | **16.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scybot Technologies, L.L.C.](https://appshunter.io/developer/327697345) | [The Math Learning Center](https://appshunter.io/developer/1542700905) |

## What reviewers say

### FlashToPass

[App page](https://appshunter.io/ios/app/flashtopass-math-flash-cards/id330482882)

Master math facts with interactive flashcards. Reinforce concepts, practice addition for free, and unlock more operations and customization through in-app purchases. Supports dark mode and offers printable exports.

**Highlights:** Interactive math flashcards, Addition practice (free), Customizable card sets, Printable exports, Modern design with dark mode, Practice by number and difficulty

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Features, Monthly | $1.99 | per month |
| Unlock All Features | $4.99 | per year |
| Lifetime Unlock | $9.99 | one-time |

**What reviewers like**

- 👍 Great for learning math facts
- ⏱️ Helpful timer feature
- 🎓 Useful for practicing math skills
- 🌟 Engaging and addictive
- 🎨 Good visual design

**What reviewers complain about**

- 🔒 Locked content requires purchase
- 💰 Ads can be distracting
- 🐛 Crashes and compatibility issues
- 🔍 Limited customization options
- 🕹️ Repetitive gameplay

**Reported bugs**

- Crashes when entering answers
- Timer not working as expected
- Compatibility issues with iOS updates
- Keyboard disappearing during use

**Requested features**

- Allow setting number of questions
- Add more difficulty levels
- Include doubles facts practice
- Provide detailed performance tracking
- Improve keyboard layout and functionality


### 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 FlashToPass free?

FlashToPass 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, FlashToPass or Number Line, by MLC?

FlashToPass is rated higher. FlashToPass averages 4.4 out of 5 from 931 ratings, while Number Line, by MLC averages 4.4 from 15 ratings.

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

Neither FlashToPass nor Number Line, by MLC shows ads.

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

FlashToPass ships an update every 4 months, and Number Line, by MLC every 13 months. Most recently, FlashToPass was updated on October 31, 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.*