# FlashToPass vs Number Line

The clearest difference is rating: Number Line at 5.0 against FlashToPass's 4.4. Number Line also leads on in-app purchases (none vs 2) and review sentiment (100% vs 67%). FlashToPass's advantage is ratings volume (930 vs 5) and update cadence (every 4 months vs every 15 months). On price, ads and device support there is nothing between them.

Both are free to download. FlashToPass sells 2 in-app purchases, starting at $0.99 per year. Number Line asks for nothing beyond the download.

Number Line holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: FlashToPass has 930 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 67% of FlashToPass's written reviews are positive against 100% of Number Line's.

FlashToPass ships an update every 4 months, Number Line every 15 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | FlashToPass | Number Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (930 ratings)](https://appshunter.io/ios/app/flashtopass-math-flash-cards/id330482882/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/number-line/id1531893217/reviews)** |
| Number of ratings | **930** | 5 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 21 MB | 16 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scybot Technologies, L.L.C.](https://appshunter.io/developer/327697345) | [Blastoff Design](https://appshunter.io/developer/1455360972) |

## 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $0.99 | per year |
| Lifetime Unlock | $4.99 | 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

[App page](https://appshunter.io/ios/app/number-line/id1531893217)

This app provides an interactive number line for educational purposes, enabling users to visualize numbers, perform various math games, and practice rounding. Its simple interface supports zooming, swiping, and marking numbers with pins or freehand drawing.

**Highlights:** Infinite number line visualization, Rounding practice (nearest 10, 100, 10,000), Number comparison, Pinch-to-zoom functionality, Swipe navigation, Search for specific numbers, Pin marking, Freehand drawing tool

**In-app purchases:** none


## Frequently asked questions

### Is FlashToPass free?

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

### Is Number Line free?

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

### Which has better reviews, FlashToPass or Number Line?

Number Line is rated higher. FlashToPass averages 4.4 out of 5 from 930 ratings, while Number Line averages 5.0 from 5 ratings.

### Do FlashToPass or Number Line have ads?

Neither FlashToPass nor Number Line shows ads.

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

FlashToPass ships an update every 4 months, and Number Line every 15 months. Most recently, FlashToPass was updated on October 24, 2026 and Number Line on October 24, 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.*