# Sherlock Holmes Complex Cases vs Vellum

The clearest difference is update cadence: Vellum at every 5 weeks against Sherlock Holmes Complex Cases's every 50 months. Sherlock Holmes Complex Cases's advantage is iOS requirement (12.1 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Sherlock Holmes Complex Cases ships an update every 50 months, Vellum every 5 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sherlock Holmes Complex Cases | Vellum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vellum-classic-books-reader/id6755439718/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 56 MB | 38 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ashby Navis & Tennyson Media Publisher LLC](https://appshunter.io/developer/1087457802) | [Imran Khan](https://appshunter.io/developer/1816677441) |

## What reviewers say

### Sherlock Holmes Complex Cases

[App page](https://appshunter.io/ios/app/sherlock-holmes-complex-cases/id1134313499)

**Features:** macOS Compatibility

**In-app purchases:** none


### Vellum

[App page](https://appshunter.io/ios/app/vellum-classic-books-reader/id6755439718)

Access and read thousands of classic books for free offline. Organize your reading, take personal notes, and save favorite quotes. Enjoy a distraction-free, ad-free experience with beautiful typography.

**Highlights:** Offline reading, Ad-free experience, Library management, Personal notes and quotes, Thousands of classic titles, Distraction-free reader, EPUB export

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

**In-app purchases:** none


## Frequently asked questions

### Is Sherlock Holmes Complex Cases free?

Sherlock Holmes Complex Cases is free to download, with no in-app purchases.

### Is Vellum free?

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

### Do Sherlock Holmes Complex Cases or Vellum have ads?

Neither Sherlock Holmes Complex Cases nor Vellum shows ads.

### Which is updated more often, Sherlock Holmes Complex Cases or Vellum?

Sherlock Holmes Complex Cases ships an update every 50 months, and Vellum every 5 weeks. Most recently, Sherlock Holmes Complex Cases was updated on November 11, 2026 and Vellum on November 5, 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.*