# IoT vs Pro PDF Reader & Editor

The clearest difference is in-app purchases: IoT at none against Pro PDF Reader & Editor's 3. IoT also leads on ads (none vs shown) and device support (3 vs 1). Pro PDF Reader & Editor's advantage is update cadence (every 2 months vs every 23 months). On price there is nothing between them.

Both are free to download. Pro PDF Reader & Editor sells 3 in-app purchases, starting at $6.99 per 7 days. IoT asks for nothing beyond the download.

IoT ships an update every 23 months, Pro PDF Reader & Editor every 2 months. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | IoT | Pro PDF Reader & Editor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | **Every 2 months** |
| Size | 7 MB | 47 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dave Massey](https://appshunter.io/developer/1029584286) | [Chengdu Youbutong New Energy Technology](https://appshunter.io/developer/1839270916) |

## What reviewers say

### IoT

[App page](https://appshunter.io/ios/app/iot-pass/id1145534244)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pro PDF Reader & Editor

[App page](https://appshunter.io/ios/app/pro-pdf-reader-and-editor/id6752470060)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Membership - Weekly | $6.99 | per 7 days |
| Pro Membership – Monthly | $14.99 | per month |
| Pro Membership – Yearly | $29.99 | per year |


## Frequently asked questions

### Is IoT free?

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

### Is Pro PDF Reader & Editor free?

Pro PDF Reader & Editor is free to download, with in-app purchases available.

### Do IoT or Pro PDF Reader & Editor have ads?

Pro PDF Reader & Editor shows ads; IoT does not.

### Which is updated more often, IoT or Pro PDF Reader & Editor?

IoT ships an update every 23 months, and Pro PDF Reader & Editor every 2 months. Most recently, IoT was updated on October 20, 2026 and Pro PDF Reader & Editor on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*