# Skill 91 vs Content Viewer DZ

The clearest difference is in-app purchases: Content Viewer DZ at none against Skill 91's 2. Content Viewer DZ also leads on update cadence (every 4 days vs every 40 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Skill 91 sells 2 one-off in-app purchases. Content Viewer DZ asks for nothing beyond the download.

Skill 91 ships an update every 40 months, Content Viewer DZ every 4 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Skill 91 | Content Viewer DZ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 279 MB | 71 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Neeraj Arora](https://appshunter.io/developer/1434568582) | [Digizion](https://appshunter.io/developer/1770936606) |

## What reviewers say

### Skill 91

[App page](https://appshunter.io/ios/app/skill-91/id1547962099)

This app offers industry-focused skills with a strong emphasis on practical application. It aims to empower students to start earning immediately after graduation by providing marketable skills at affordable prices.

**Highlights:** Industry-focused skills, Practical application emphasis, Marketable skill development, Affordable pricing, Empowerment for immediate earning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blockchain | $10.99 | one-time |
| Excel Club | $12.99 | one-time |


### Content Viewer DZ

[App page](https://appshunter.io/ios/app/content-viewer-dz/id6723882599)

**In-app purchases:** none


## Frequently asked questions

### Is Skill 91 free?

Skill 91 is free to download, with in-app purchases available.

### Is Content Viewer DZ free?

Content Viewer DZ is free to download, with no in-app purchases.

### Do Skill 91 or Content Viewer DZ have ads?

Neither Skill 91 nor Content Viewer DZ shows ads.

### Which is updated more often, Skill 91 or Content Viewer DZ?

Skill 91 ships an update every 40 months, and Content Viewer DZ every 4 days. Most recently, Skill 91 was updated on October 15, 2026 and Content Viewer DZ on October 6, 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.*