# Events by E&I vs Wharton Key

The clearest difference is update cadence: Wharton Key at every 6 weeks against Events by E&I's every 4 months. Events by E&I's advantage is iOS requirement (15.1 vs 17.0). 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.

Events by E&I ships an update every 4 months, Wharton Key every 6 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Events by E&I | Wharton Key |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 56 MB | 60 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Educational & Institutional Cooperative Service, Inc.](https://appshunter.io/developer/1813919551) | [University of Pennsylvania](https://appshunter.io/developer/437910363) |

## What reviewers say

### Events by E&I

[App page](https://appshunter.io/ios/app/events-by-e-and-i/id6745794532)

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

**In-app purchases:** none


### Wharton Key

[App page](https://appshunter.io/ios/app/wharton-key/id6760128442)

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

**In-app purchases:** none


## Frequently asked questions

### Is Events by E&I free?

Events by E&I is free to download, with no in-app purchases.

### Is Wharton Key free?

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

### Do Events by E&I or Wharton Key have ads?

Neither Events by E&I nor Wharton Key shows ads.

### Which is updated more often, Events by E&I or Wharton Key?

Events by E&I ships an update every 4 months, and Wharton Key every 6 weeks. Most recently, Events by E&I was updated on October 30, 2026 and Wharton Key on October 28, 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.*