# Convert to PDF vs Radioactivity Conversion

The clearest difference is review sentiment: Convert to PDF at 50% against Radioactivity Conversion's 0%. Convert to PDF also leads on rating (5.0 vs 3.0) and price ($1.99 vs $2.99). Radioactivity Conversion's advantage is ads (none vs shown). On ratings volume, update cadence, in-app purchases and device support there is nothing between them.

Convert to PDF costs $1.99 and Radioactivity Conversion $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Convert to PDF holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 50% of Convert to PDF's written reviews are positive against 0% of Radioactivity Conversion's.

Convert to PDF ships an update every 20 months, Radioactivity Conversion every 28 months. The most recent releases landed on October 19, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Convert to PDF | Radioactivity Conversion |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/convert-to-pdf/id490098718/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/radioactivity-conversion/id561349846/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 20 months** | Every 28 months |
| Monetization | **Ad-supported** | Paid |
| Size | 81 MB | 1 MB |
| Requires iOS | **11.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ice Cold Apps](https://appshunter.io/developer/468552068) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Convert to PDF

[App page](https://appshunter.io/ios/app/convert-to-pdf/id490098718)

Transform various document and image files into PDF format quickly and easily. Upload files to the cloud for fast conversion, then share your new PDFs through multiple options. Supports over 2000 source formats.

**Highlights:** Convert over 2000 source formats to PDF, Save as document or ebook, Use 'Open with' for file loading, Load images from gallery or camera, Multiple sharing options

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

**In-app purchases:** none


### Radioactivity Conversion

[App page](https://appshunter.io/ios/app/radioactivity-conversion/id561349846)

Easily convert between various units related to radioactive decay. Understand the process of emitting radioactive particles and the properties of elements exhibiting radioactivity.

**Highlights:** Radioactive decay unit conversion, Information on radioactive decay process, Details on radioactive particles, Explanation of half-life, Properties of radioactive elements

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

**In-app purchases:** none


## Frequently asked questions

### Is Convert to PDF free?

Convert to PDF costs $1.99, with no in-app purchases.

### Is Radioactivity Conversion free?

Radioactivity Conversion costs $2.99, with no in-app purchases.

### Which has better reviews, Convert to PDF or Radioactivity Conversion?

Convert to PDF is rated higher. Convert to PDF averages 5.0 out of 5 from 1 ratings, while Radioactivity Conversion averages 3.0 from 2 ratings.

### Do Convert to PDF or Radioactivity Conversion have ads?

Convert to PDF shows ads; Radioactivity Conversion does not.

### Which is updated more often, Convert to PDF or Radioactivity Conversion?

Convert to PDF ships an update every 20 months, and Radioactivity Conversion every 28 months. Most recently, Convert to PDF was updated on October 19, 2026 and Radioactivity Conversion on October 23, 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.*