# One Vanderbilt vs KastleAlert

The clearest difference is rating: KastleAlert at 5.0 against One Vanderbilt's 3.9. KastleAlert also leads on iOS requirement (11.0 vs 15.0). One Vanderbilt's advantage is ratings volume (8 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

KastleAlert holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: One Vanderbilt has 8 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | One Vanderbilt | KastleAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (8 ratings)](https://appshunter.io/ios/app/one-vanderbilt/id1495066837/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kastlealert/id1669198136/reviews)** |
| Number of ratings | **8** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | Free |
| Size | 138 MB | 76 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sharry Europe s.r.o.](https://appshunter.io/developer/1231851310) | [Kastle Systems](https://appshunter.io/developer/1061078658) |

## What reviewers say

### One Vanderbilt

[App page](https://appshunter.io/ios/app/one-vanderbilt/id1495066837)

This app provides building occupants and visitors with essential information and access to One Vanderbilt. It offers features like property entry, guest invitations, amenity reservations, and event details, streamlining the building experience.

**Highlights:** Building information dashboard, Frictionless property access, Guest invitation system, Amenity reservations, Event listings, Community information

**Features:** Apple Wallet

**In-app purchases:** none


### KastleAlert

[App page](https://appshunter.io/ios/app/kastlealert/id1669198136)

This tool facilitates real-time, two-way emergency communication for businesses and their employees. It allows for immediate office alerts and provides live safety updates and location status during critical events.

**Highlights:** Two-way real-time communication, Emergency office alerts, Real-time safety updates, Location status during emergencies, Managed by system administrator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Vanderbilt free?

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

### Is KastleAlert free?

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

### Which has better reviews, One Vanderbilt or KastleAlert?

KastleAlert is rated higher. One Vanderbilt averages 3.9 out of 5 from 8 ratings, while KastleAlert averages 5.0 from 1 ratings.

### Do One Vanderbilt or KastleAlert have ads?

Neither One Vanderbilt nor KastleAlert shows ads.

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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.*