# HD Summit vs CSI & HRDS

The clearest difference is update cadence: CSI & HRDS at monthly against HD Summit's every 12 months. CSI & HRDS also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

HD Summit ships an update every 12 months, CSI & HRDS monthly. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | HD Summit | CSI & HRDS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Size | 58 MB | 114 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Emerald Expositions, Inc](https://appshunter.io/developer/442927577) | [ELITE EXHIBITIONS LIMITED](https://appshunter.io/developer/1485870879) |

## What reviewers say

### HD Summit

[App page](https://appshunter.io/ios/app/hd-summit/id6478491585)

**Features:** macOS Compatibility

**In-app purchases:** none


### CSI & HRDS

[App page](https://appshunter.io/ios/app/csi-and-hrds/id6761266714)

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

**In-app purchases:** none


## Frequently asked questions

### Is HD Summit free?

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

### Is CSI & HRDS free?

CSI & HRDS is free to download, with no in-app purchases.

### Do HD Summit or CSI & HRDS have ads?

Neither HD Summit nor CSI & HRDS shows ads.

### Which is updated more often, HD Summit or CSI & HRDS?

HD Summit ships an update every 12 months, and CSI & HRDS monthly. Most recently, HD Summit was updated on September 18, 2026 and CSI & HRDS on September 8, 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.*