# THREADFINDER PRO vs Convert to PDF

The clearest difference is in-app purchases: THREADFINDER PRO at none against Convert to PDF's 2. THREADFINDER PRO also leads on update cadence (fortnightly vs monthly). Convert to PDF's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Convert to PDF sells 2 in-app purchases, starting at $4.99 per month. THREADFINDER PRO asks for nothing beyond the download.

THREADFINDER PRO ships an update fortnightly, Convert to PDF monthly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | THREADFINDER PRO | Convert to PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/convert-to-pdf-pdfon/id6755687881/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | — | Freemium |
| Size | 1 MB | 51 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Seyfettin Aslan](https://appshunter.io/developer/1850445665) | [Soufiane Bouziane](https://appshunter.io/developer/1796428527) |

## What reviewers say

### THREADFINDER PRO

[App page](https://appshunter.io/ios/app/threadfinder-pro/id6755366004)

**Features:** macOS Compatibility

**In-app purchases:** none


### Convert to PDF

[App page](https://appshunter.io/ios/app/convert-to-pdf-pdfon/id6755687881)

Easily convert documents, images, and text files into high-quality PDFs. Supports a wide range of formats including Word, Excel, JPG, and PNG. Offers batch conversion and secure processing without watermarks.

**Highlights:** Convert Word, Excel, PowerPoint to PDF, Convert images (JPG, PNG, HEIC) to PDF, Convert text and Markdown to PDF, Merge multiple images into one PDF, Batch conversion of multiple files, Secure processing with immediate file deletion, No watermarks on converted PDFs

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is THREADFINDER PRO free?

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

### Is Convert to PDF free?

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

### Do THREADFINDER PRO or Convert to PDF have ads?

Neither THREADFINDER PRO nor Convert to PDF shows ads.

### Which is updated more often, THREADFINDER PRO or Convert to PDF?

THREADFINDER PRO ships an update fortnightly, and Convert to PDF monthly. Most recently, THREADFINDER PRO was updated on October 25, 2026 and Convert to PDF on October 29, 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.*