# 55th NADC vs Keystone Crossing

The clearest difference is update cadence: 55th NADC at every 10 days against Keystone Crossing's monthly. 55th NADC also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). 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.

55th NADC ships an update every 10 days, Keystone Crossing monthly. The most recent releases landed on September 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 55th NADC | Keystone Crossing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/keystone-crossing/id6744651323/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Size | 22 MB | 98 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [National Interscholastic Athletic Administrators Association](https://appshunter.io/developer/1444474567) | [KATC Property LLC](https://appshunter.io/developer/1808700234) |

## What reviewers say

### 55th NADC

[App page](https://appshunter.io/ios/app/55th-nadc/id6738583231)

**Features:** macOS Compatibility

**In-app purchases:** none


### Keystone Crossing

[App page](https://appshunter.io/ios/app/keystone-crossing/id6744651323)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 55th NADC free?

55th NADC is free to download, with no in-app purchases.

### Is Keystone Crossing free?

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

### Do 55th NADC or Keystone Crossing have ads?

Neither 55th NADC nor Keystone Crossing shows ads.

### Which is updated more often, 55th NADC or Keystone Crossing?

55th NADC ships an update every 10 days, and Keystone Crossing monthly. Most recently, 55th NADC was updated on September 25, 2026 and Keystone Crossing on October 24, 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.*