# Subverter vs PDF Watermark Assistant

The clearest difference is price: PDF Watermark Assistant at $0.99 against Subverter's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Subverter costs $1.99 and PDF Watermark Assistant $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Subverter ships an update every 3 months, PDF Watermark Assistant every 5 months. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Subverter | PDF Watermark Assistant |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/subverter/id6741046402/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Paid | — |
| Size | 1 MB | 5 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marco Tini](https://appshunter.io/developer/544232459) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### Subverter

[App page](https://appshunter.io/ios/app/subverter/id6741046402)

Easily convert subtitle files between various formats like SRT, VTT, and ASS. This app prioritizes user privacy with local, offline processing and offers a clean, ad-free experience for video editors and content creators.

**Highlights:** Wide format support (SRT, VTT, SSA/ASS, SUB, SBV), Offline conversion, Ad-free experience, User-friendly interface, Local processing for privacy

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

**In-app purchases:** none


### PDF Watermark Assistant

[App page](https://appshunter.io/ios/app/pdf-watermark-assistant/id6747923103)

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

**In-app purchases:** none


## Frequently asked questions

### Is Subverter free?

Subverter costs $1.99, with no in-app purchases.

### Is PDF Watermark Assistant free?

PDF Watermark Assistant costs $0.99, with no in-app purchases.

### Do Subverter or PDF Watermark Assistant have ads?

Neither Subverter nor PDF Watermark Assistant shows ads.

### Which is updated more often, Subverter or PDF Watermark Assistant?

Subverter ships an update every 3 months, and PDF Watermark Assistant every 5 months. Most recently, Subverter was updated on October 12, 2026 and PDF Watermark Assistant on October 28, 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.*