# Line vs PDF Maker

The clearest difference is rating: PDF Maker at 4.6 against Line's 3.7. PDF Maker also leads on update cadence (every 4 months vs every 41 months) and review sentiment (29% vs 0%). Line's advantage is in-app purchases (none vs 5). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Maker sells 5 in-app purchases, starting at $6.99 per 7 days. Line asks for nothing beyond the download.

PDF Maker holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: PDF Maker has 1.2K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Line's written reviews are positive against 29% of PDF Maker's.

Line ships an update every 41 months, PDF Maker every 4 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Line | PDF Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/line-fit/id1448053643/reviews) | **[4.6 (1.2K ratings)](https://appshunter.io/ios/app/pdf-maker-convert-to-pdf/id1567656728/reviews)** |
| Number of ratings | 3 | **1.2K** |
| Positive reviews | 0.0% of reviews | **28.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 140 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Bjarne Berge](https://appshunter.io/developer/1209858941) | [Muhammet Yalcın Ozdemir Halil Ibrahim Karahan Mustafa Ayten Kupertino Bilisim Yazılım K.S](https://appshunter.io/developer/1788511975) |

## What reviewers say

### Line

[App page](https://appshunter.io/ios/app/line-fit/id1448053643)

This app models the relationship between two variables using linear regression. It fits a linear equation to observed data, calculating the slope, intercept, correlation coefficient, and coefficient of determination to assess the model's fit.

**Highlights:** Linear regression modeling, Calculate slope and intercept, Correlation coefficient calculation, Coefficient of determination (R2), Model fit assessment

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

**In-app purchases:** none


### PDF Maker

[App page](https://appshunter.io/ios/app/pdf-maker-convert-to-pdf/id1567656728)

Easily convert various file types, including documents and photos, into PDF format directly on your device. This app offers advanced tools for merging, splitting, and compressing PDFs, along with options to add content and share your creations.

**Highlights:** Convert DOC, XLS, JPG, TXT, PPT, SVG to PDF, Create new PDFs from photos or text, Merge and split PDF files, Compress PDF files, Preview, export, and share PDFs

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Secret Discount Pro | $24.99 | per year |
| PDF Converter | $29.99 | per year |
| Yearly Premium | $49.99 | per year |


## Frequently asked questions

### Is Line free?

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

### Is PDF Maker free?

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

### Which has better reviews, Line or PDF Maker?

PDF Maker is rated higher. Line averages 3.7 out of 5 from 3 ratings, while PDF Maker averages 4.6 from 1.2K ratings.

### Do Line or PDF Maker have ads?

Neither Line nor PDF Maker shows ads.

### Which is updated more often, Line or PDF Maker?

Line ships an update every 41 months, and PDF Maker every 4 months. Most recently, Line was updated on October 24, 2026 and PDF Maker on October 27, 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.*