# Superfans Preview vs Grim Reader

The clearest difference is iOS requirement: Superfans Preview at 15.0 against Grim Reader's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Superfans Preview ships an update every 9 days, Grim Reader every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Superfans Preview | Grim Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/grim-reader/id6782366876/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 103 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vajro India Private Limited](https://appshunter.io/developer/982767344) | [Maarten de Kreij](https://appshunter.io/developer/6774006735) |

## What reviewers say

### Superfans Preview

[App page](https://appshunter.io/ios/app/superfans-preview/id6747644119)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Grim Reader

[App page](https://appshunter.io/ios/app/grim-reader/id6782366876)

Organize and enrich your personal library of e-books, comics, and audiobooks. This app allows you to manage your collection locally or via your own servers, adding details like covers and author information. Enjoy a seamless reading and listening experience across all your content.

**Highlights:** Library management for e-books, comics, and audiobooks, Enrich library with online book and author data, Supports local files and personal servers (WebDAV, OPDS), Cross-device reading and listening progress tracking, Organize by author, series, and genre, Mark favorites

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

**In-app purchases:** none


## Frequently asked questions

### Is Superfans Preview free?

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

### Is Grim Reader free?

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

### Do Superfans Preview or Grim Reader have ads?

Neither Superfans Preview nor Grim Reader shows ads.

### Which is updated more often, Superfans Preview or Grim Reader?

Superfans Preview ships an update every 9 days, and Grim Reader every 3 weeks. Most recently, Superfans Preview was updated on September 23, 2026 and Grim Reader on September 24, 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.*