# i vs VDex

The clearest difference is in-app purchases: i at none against VDex's 2. i also leads on update cadence (every 10 days vs every 4 months) and iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. VDex sells 2 in-app purchases, starting at $4.99 per month. i asks for nothing beyond the download.

i ships an update every 10 days, VDex every 4 months. Both last shipped on June 1, 2026.

## The numbers

| Metric | i | VDex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vdex/id1546459265/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | **Free** | Subscription |
| Size | 33 MB | 39 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nguyen Tuan Anh](https://appshunter.io/developer/1250408464) | [Steven Nguyen](https://appshunter.io/developer/1540685532) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-components-ios-components-development-components/id1250408465)

This app helps aspiring and experienced iOS developers understand and master the fundamental components of iOS development. It provides an intuitive tree view to visualize relationships between components and fosters a community for sharing insights and troubleshooting.

**Highlights:** Intuitive tree view of iOS components, Deepen understanding of component relationships, Community insights and troubleshooting, Reference for junior and senior iOS developers, Learn iOS programming fundamentals

**Features:** macOS Compatibility

**In-app purchases:** none


### VDex

[App page](https://appshunter.io/ios/app/vdex/id1546459265)

Access and search a comprehensive database of cybersecurity vulnerabilities. Stay updated with the latest CVEs, synced hourly from NIST. A subscription is required for full access, with a free trial available.

**Highlights:** CVE database access, Hourly NIST sync, Search CVE by ID, Monthly subscription, Annual subscription with trial

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CVE Access | $4.99 | per month |
| CVE Access | $49.99 | per year |


## Frequently asked questions

### Is i free?

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

### Is VDex free?

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

### Do i or VDex have ads?

Neither i nor VDex shows ads.

### Which is updated more often, i or VDex?

i ships an update every 10 days, and VDex every 4 months. Most recently, i was updated on June 1, 2026 and VDex on June 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*