# CISSP Practice Test Prep vs Mobilus

The clearest difference is in-app purchases: Mobilus at none against CISSP Practice Test Prep's 1. CISSP Practice Test Prep's advantage is iOS requirement (9.2 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CISSP Practice Test Prep sells 1 one-off in-app purchase. Mobilus asks for nothing beyond the download.

CISSP Practice Test Prep ships an update every 6 months, Mobilus every 4 months. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CISSP Practice Test Prep | Mobilus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 190 MB |
| Requires iOS | **9.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MOON MOUNTAIN INC](https://appshunter.io/developer/1555760990) | [MOBILUS SINGAPORE PTE LTD](https://appshunter.io/developer/1773734815) |

## What reviewers say

### CISSP Practice Test Prep

[App page](https://appshunter.io/ios/app/cissp-practice-test-prep/id1439071492)

Prepare for your Certified Information Security Professional (CISSP) exam with over 1000 practice questions. This app utilizes a proprietary learning technique based on cognitive psychology to aid memorization and understanding. Try 10 free questions daily before upgrading to the full paid version.

**Highlights:** Over 1000 practice questions, Proprietary Effective Learning Strategy (ELS™), Daily free questions, Upgrade to paid version, Pass or its free guarantee

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CISSP Practice Test Premium | $9.99 | one-time |


### Mobilus

[App page](https://appshunter.io/ios/app/mobilus/id6736899261)

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

**In-app purchases:** none


## Frequently asked questions

### Is CISSP Practice Test Prep free?

CISSP Practice Test Prep is free to download, with in-app purchases available.

### Is Mobilus free?

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

### Do CISSP Practice Test Prep or Mobilus have ads?

Neither CISSP Practice Test Prep nor Mobilus shows ads.

### Which is updated more often, CISSP Practice Test Prep or Mobilus?

CISSP Practice Test Prep ships an update every 6 months, and Mobilus every 4 months. Most recently, CISSP Practice Test Prep was updated on October 10, 2026 and Mobilus on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*