# Math Derivatives vs Convert DOC/DOCX to PDF

The clearest difference is review sentiment: Math Derivatives at 100% against Convert DOC/DOCX to PDF's 57%. Math Derivatives also leads on ads (none vs shown). Convert DOC/DOCX to PDF's advantage is rating (4.8 vs 4.5) and ratings volume (104 vs 15). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Math Derivatives sells 1 one-off in-app purchase and Convert DOC/DOCX to PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Convert DOC/DOCX to PDF holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Convert DOC/DOCX to PDF has 104 ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 100% of Math Derivatives's written reviews are positive against 57% of Convert DOC/DOCX to PDF's, so the app with the better star average is not the one people write more warmly about.

Math Derivatives ships an update every 2 months, Convert DOC/DOCX to PDF every 4 months. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Math Derivatives | Convert DOC/DOCX to PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (15 ratings)](https://appshunter.io/ios/app/math-derivatives/id1435052476/reviews) | **[4.8 (104 ratings)](https://appshunter.io/ios/app/convert-docdocx-to-pdf/id1475749072/reviews)** |
| Number of ratings | 15 | **104** |
| Positive reviews | **100.0% of reviews** | 56.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 8 MB |
| Requires iOS | 11.3 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Electronial](https://appshunter.io/developer/1350247180) | [Tu Phan](https://appshunter.io/developer/1448602744) |

## What reviewers say

### Math Derivatives

[App page](https://appshunter.io/ios/app/math-derivatives/id1435052476)

Access a comprehensive list of common derivative formulas for various mathematical functions. Easily view derivative rules for basic, exponential, logarithmic, trigonometric, and hyperbolic functions, or display all formulas simultaneously. An upgrade option provides access to even more formulas.

**Highlights:** List of common derivative formulas, Derivative rules for basic functions, Exponential function derivatives, Logarithmic function derivatives, Trigonometric function derivatives, Hyperbolic function derivatives

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version | $0.99 | one-time |


### Convert DOC/DOCX to PDF

[App page](https://appshunter.io/ios/app/convert-docdocx-to-pdf/id1475749072)

Easily convert Word documents (DOC/DOCX) to PDF format. This app supports various Word versions and includes built-in fonts for accurate display. Requires an internet connection for conversion.

**Highlights:** Convert DOC/DOCX to PDF, Supports all Word formats (2003-2016), Built-in Unicode and special fonts, Easy file selection and conversion, Share converted PDF files

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADS | $1.99 | one-time |


## Frequently asked questions

### Is Math Derivatives free?

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

### Is Convert DOC/DOCX to PDF free?

Convert DOC/DOCX to PDF is free to download, with in-app purchases available.

### Which has better reviews, Math Derivatives or Convert DOC/DOCX to PDF?

Convert DOC/DOCX to PDF is rated higher. Math Derivatives averages 4.5 out of 5 from 15 ratings, while Convert DOC/DOCX to PDF averages 4.8 from 104 ratings.

### Do Math Derivatives or Convert DOC/DOCX to PDF have ads?

Convert DOC/DOCX to PDF shows ads; Math Derivatives does not.

### Which is updated more often, Math Derivatives or Convert DOC/DOCX to PDF?

Math Derivatives ships an update every 2 months, and Convert DOC/DOCX to PDF every 4 months. Most recently, Math Derivatives was updated on October 15, 2026 and Convert DOC/DOCX to PDF on October 19, 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.*