# Number Line vs Penwick

The clearest difference is in-app purchases: Number Line at none against Penwick's 8. Number Line also leads on iOS requirement (13.0 vs 15.0). Penwick's advantage is update cadence (every 4 weeks vs every 15 months). On price, ads and device support there is nothing between them.

Both are free to download. Penwick sells 8 in-app purchases, starting at $3.99 per month. Number Line asks for nothing beyond the download.

Number Line ships an update every 15 months, Penwick every 4 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Number Line | Penwick |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/number-line/id1531893217/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 16 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Blastoff Design](https://appshunter.io/developer/1455360972) | [MyAutobot Ltd](https://appshunter.io/developer/6791985364) |

## What reviewers say

### 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


### Penwick

[App page](https://appshunter.io/ios/app/penwick-cursive-handwriting/id6791985092)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Founders Club Monthly | $3.99 | per month |
| Founders Club Monthly | $4.49 | per month |
| Founders Club Monthly | $5.99 | per month |
| Penwick Monthly | $6.99 | per month |
| Founders Club Yearly | $39.99 | per year |
| Founders Club Yearly | $44.99 | per year |
| Founders Club Yearly | $59.99 | per year |
| Penwick Yearly | $69.99 | per year |


## Frequently asked questions

### Is Number Line free?

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

### Is Penwick free?

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

### Do Number Line or Penwick have ads?

Neither Number Line nor Penwick shows ads.

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

Number Line ships an update every 15 months, and Penwick every 4 weeks. Most recently, Number Line was updated on November 3, 2026 and Penwick on October 31, 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.*