# CORE Open House vs Vortex Sphere

The clearest difference is rating: Vortex Sphere at 4.0 against CORE Open House's 3.7. Vortex Sphere also leads on update cadence (fortnightly vs every 6 weeks). CORE Open House's advantage is ratings volume (58 vs 4). On price, review sentiment, 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.

Vortex Sphere holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: CORE Open House has 58 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 48% of CORE Open House's written reviews are positive against 50% of Vortex Sphere's.

CORE Open House ships an update every 6 weeks, Vortex Sphere fortnightly. The most recent releases landed on September 29, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | CORE Open House | Vortex Sphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (58 ratings)](https://appshunter.io/ios/app/core-open-house/id1465324840/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/vortex-sphere/id1584195053/reviews)** |
| Number of ratings | **58** | 4 |
| Positive reviews | 48.1% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 21 MB | 34 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kunversion, LLC](https://appshunter.io/developer/936851329) | [REDX](https://appshunter.io/developer/1584195055) |

## What reviewers say

### CORE Open House

[App page](https://appshunter.io/ios/app/core-open-house/id1465324840)

This app serves as a digital sign-in sheet for open houses, automatically capturing visitor information and syncing it with your kvCORE account. It enables automated lead nurturing campaigns to follow up with potential clients.

**Highlights:** Digital open house sign-in, Automatic visitor data capture, Syncs with kvCORE account, Automated lead nurturing campaigns, Mobile sign-in solution

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

**In-app purchases:** none


### Vortex Sphere

[App page](https://appshunter.io/ios/app/vortex-sphere/id1584195053)

Manage your important relationships with this contact system. It helps you prioritize daily outreach and provides tools to track and enhance your conversations. Spend more time on quality interactions with your network.

**Highlights:** Contact management system, Daily priority contact list, Call tracking, Conversation enhancement, Contact categorization, Relationship nurturing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CORE Open House free?

CORE Open House is free to download, with no in-app purchases.

### Is Vortex Sphere free?

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

### Which has better reviews, CORE Open House or Vortex Sphere?

Vortex Sphere is rated higher. CORE Open House averages 3.7 out of 5 from 58 ratings, while Vortex Sphere averages 4.0 from 4 ratings.

### Do CORE Open House or Vortex Sphere have ads?

Neither CORE Open House nor Vortex Sphere shows ads.

### Which is updated more often, CORE Open House or Vortex Sphere?

CORE Open House ships an update every 6 weeks, and Vortex Sphere fortnightly. Most recently, CORE Open House was updated on September 29, 2026 and Vortex Sphere on September 18, 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.*