# RPGViewer vs Nullgen AI Blocker

The clearest difference is price: Nullgen AI Blocker at Free against RPGViewer's $4.99. Nullgen AI Blocker also leads on review sentiment (100% vs 56%). RPGViewer's advantage is rating (4.3 vs 3.0) and in-app purchases (none vs 2). On ratings volume, ads and device support there is nothing between them.

Nullgen AI Blocker is free to download; RPGViewer costs $4.99 up front. Nullgen AI Blocker sells 2 in-app purchases, starting at $5.99 per month. RPGViewer asks for nothing beyond the download.

RPGViewer holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews complicate that: 56% of RPGViewer's written reviews are positive against 100% of Nullgen AI Blocker's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | RPGViewer | Nullgen AI Blocker |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/rpgviewer/id6479395335/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/nullgen-ai-blocker/id6805736567/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 56.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 63 MB | 17 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | +9 | 17+ |
| Developer | [Ludan Cui](https://appshunter.io/developer/1403694478) | [Nullgen, Inc.](https://appshunter.io/developer/6805736569) |

## What reviewers say

### RPGViewer

[App page](https://appshunter.io/ios/app/rpgviewer/id6479395335)

This app allows you to play your own RPG Maker and Flash projects directly on your iOS device. It supports various RPG Maker engines and Flash games, offering on-screen controls, gamepad support, and save file management.

**Highlights:** Plays RPG Maker XP, VX, VX Ace, MV, MZ, Supports Flash (SWF) games via Ruffle, Imports and exports save files, On-screen remappable gamepad, Real controller support, Cheat panel for MV/MZ games

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

**In-app purchases:** none

**What reviewers like**

- 👍 Games run smoothly
- 👍 Cheat menu useful
- 👍 Good for RPGMV on iOS
- 👍 Competes with Joiplay
- 👍 Supports many engines

**What reviewers complain about**

- 🐛 Virtual controls clunky
- 🐛 Screen overlay by buttons
- 🐛 Save/export not working
- 🐛 Audio issues (OGG, general)
- 🐛 Game compatibility varies

**Reported bugs**

- CG errors
- Black screen on video playback
- Button presses also register as touches
- Black screen after changing positions
- Movie folder glitches

**Requested features**

- Customizable button layout
- Portrait mode button customization
- Game folder organization
- Rename games
- Game exit button


### Nullgen AI Blocker

[App page](https://appshunter.io/ios/app/nullgen-ai-blocker/id6805736567)

This app prevents AI chatbots and websites from functioning on your iPhone or iPad. It blocks access to over 70 AI services, including popular ones like ChatGPT and Gemini, across Safari, Chrome, and other apps. A VPN configuration is used locally on the device to filter AI destinations without routing your traffic.

**Highlights:** Blocks over 70 AI services, Works on Safari, Chrome, and apps, Local VPN configuration for filtering, No off switch for continuous blocking, Parental controls for access requests, Cross-device protection with Nullgen Pro

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nullgen Family Monthly | $5.99 | per month |
| Nullgen Family Yearly | $59.99 | per year |


## Frequently asked questions

### Is RPGViewer free?

RPGViewer costs $4.99, with no in-app purchases.

### Is Nullgen AI Blocker free?

Nullgen AI Blocker is free to download, with in-app purchases available.

### Which has better reviews, RPGViewer or Nullgen AI Blocker?

RPGViewer is rated higher. RPGViewer averages 4.3 out of 5 from 3 ratings, while Nullgen AI Blocker averages 3.0 from 2 ratings.

### Do RPGViewer or Nullgen AI Blocker have ads?

Neither RPGViewer nor Nullgen AI Blocker shows ads.

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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.*