# Legacy D2 vs Octane Events

The clearest difference is update cadence: Legacy D2 at fortnightly against Octane Events's every 2 months. Legacy D2 also leads on iOS requirement (15.6 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.

Legacy D2 ships an update fortnightly, Octane Events every 2 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Legacy D2 | Octane Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/legacy-d2/id6736384115/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 129 MB | 80 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Clinical Dermatology Conferences](https://appshunter.io/developer/1275711415) | [Orange County Technology Action Network](https://appshunter.io/developer/710929578) |

## What reviewers say

### Legacy D2

[App page](https://appshunter.io/ios/app/legacy-d2/id6736384115)

Access up-to-date conference information, manage your schedule, and connect with attendees. Learn about speakers, browse exhibitors, and view session presentations for an enhanced event experience.

**Highlights:** Manage personal schedule, View attendee list, Learn about speakers, Browse exhibitors, Access session presentations, Event details

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

**In-app purchases:** none


### Octane Events

[App page](https://appshunter.io/ios/app/octane-events/id6740009471)

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

**In-app purchases:** none


## Frequently asked questions

### Is Legacy D2 free?

Legacy D2 is free to download, with no in-app purchases.

### Is Octane Events free?

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

### Do Legacy D2 or Octane Events have ads?

Neither Legacy D2 nor Octane Events shows ads.

### Which is updated more often, Legacy D2 or Octane Events?

Legacy D2 ships an update fortnightly, and Octane Events every 2 months. Most recently, Legacy D2 was updated on October 2, 2026 and Octane Events on October 3, 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.*