Comparison

Math Derivatives vs Convert DOC/DOCX to PDF

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Math Derivatives

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
Read full description

Make maths easy with this app! This app contains a list of all common derivatives. Click on the formula to get the derivative. You can view derivative rules; basic, exponential, logarithmic, trigonometry and hyperbolic functions, or show all formulas at once. You can upgrade to the pro version for even more formulas.

About

Convert DOC/DOCX to PDF

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
Read full description

In addition to the extremely good security aspect of the PDF file as the user cannot edit the original content of the document, many people are also pleased that the PDF allows display without font errors . This "Convert Word to PDF" app will help you to easily convert word file to pdf quickly. App has a built-in full font Unicode, Indian font, Arabic font, Brazil font, special fonts .... Not only does it support converting doc to pdf or docx to pdf, but the app also supports all word formats since 2003, 2007,2013,2016 The application allows you to convert your DOC or DOCX files to PDF without ceremony. Choose a DOC/DOCX file by searching by name. Tap the file, confirm and wait for conversion to PDF. And that's it. Your DOC/DOCX was Converted to PDF File. Warning: The DOC/DOCX to PDF app needs an Internet connection to perform the conversion. Use the reliable Convert Word to PDF application to convert files, display in PDF reader and share files with others easily and quickly. Look forward to comments from users to improve the app.

Screenshots

Math Derivatives2 screens
Convert DOC/DOCX to PDF4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Math Derivatives ships an update every 2 months, Convert DOC/DOCX to PDF every 4 months. Both last shipped on October 15, 2026.

Scorecard4 real differences · 6 level
Math Derivatives versus Convert DOC/DOCX to PDF: the parameters behind the verdict, then further details
ParameterMath DerivativesConvert DOC/DOCX to PDF
PriceFreeFree
Rating4.5 (15 ratings)4.8 (104 ratings) — better
Positive reviews100.0% of reviews — better56.5% of reviews
Number of ratings15104 — better
Update frequencyEvery 2 months — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.311.0 — better
Further details — not scored
Size13 MB8 MB
Age rating4++4
DeveloperElectronialTu Phan

Customer experience

Math Derivatives

All ratings15 ratings
Positive86.7%
Neutral0.0%
Negative13.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Convert DOC/DOCX to PDF

All ratings104 ratings
Positive97.1%
Neutral0.0%
Negative2.9%
Written reviews23 reviews
Positive56.5%
Neutral8.7%
Negative34.8%

In-app purchases

1 purchases

Math Derivatives

One-time1
  • Pro version$0.99
1 purchases

Convert DOC/DOCX to PDF

One-time1
  • Remove ADS$1.99

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 15, 2026.

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