# Rock Core vs Apollos Preview

Rock Core and Apollos Preview are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Rock Core ships an update every 3 weeks, Apollos Preview fortnightly. The most recent releases landed on September 3, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Rock Core | Apollos Preview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rock-core/id1498547817/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 209 MB | 82 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Spark Development Network, Inc.](https://appshunter.io/developer/879253339) | [Apollos](https://appshunter.io/developer/1528787647) |

## What reviewers say

### Rock Core

[App page](https://appshunter.io/ios/app/rock-core/id1498547817)

Stay informed about Rock RMS events and engage with the community. This app is designed for both experienced users and newcomers to the platform.

**Highlights:** Real-time updates on Rock RMS, Community engagement features, Suitable for all experience levels, Mobile access to platform information

**Features:** Vision Pro support

**In-app purchases:** none


### Apollos Preview

[App page](https://appshunter.io/ios/app/apollos-preview/id6472218772)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rock Core free?

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

### Is Apollos Preview free?

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

### Do Rock Core or Apollos Preview have ads?

Neither Rock Core nor Apollos Preview shows ads.

### Which is updated more often, Rock Core or Apollos Preview?

Rock Core ships an update every 3 weeks, and Apollos Preview fortnightly. Most recently, Rock Core was updated on September 3, 2026 and Apollos Preview on September 16, 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.*