# EDVR vs HK Correctional Services Prep

The clearest difference is in-app purchases: EDVR at none against HK Correctional Services Prep's 1. EDVR also leads on iOS requirement (11.0 vs 15.6). HK Correctional Services Prep's advantage is update cadence (weekly vs every 4 weeks). On price, ads and device support there is nothing between them.

Both are free to download. HK Correctional Services Prep sells 1 one-off in-app purchase. EDVR asks for nothing beyond the download.

EDVR ships an update every 4 weeks, HK Correctional Services Prep weekly. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | EDVR | HK Correctional Services Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 267 MB | 82 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Edvant Company Limited](https://appshunter.io/developer/1077165515) | [Pickmy AI](https://appshunter.io/developer/1869516043) |

## What reviewers say

### EDVR

[App page](https://appshunter.io/ios/app/edvr/id1604128778)

**In-app purchases:** none


### HK Correctional Services Prep

[App page](https://appshunter.io/ios/app/hk-correctional-services-prep/id6795981685)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 180-Day Pro | $19.99 | one-time |


## Frequently asked questions

### Is EDVR free?

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

### Is HK Correctional Services Prep free?

HK Correctional Services Prep is free to download, with in-app purchases available.

### Do EDVR or HK Correctional Services Prep have ads?

Neither EDVR nor HK Correctional Services Prep shows ads.

### Which is updated more often, EDVR or HK Correctional Services Prep?

EDVR ships an update every 4 weeks, and HK Correctional Services Prep weekly. Most recently, EDVR was updated on September 21, 2026 and HK Correctional Services Prep on September 9, 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.*