# CISSP Certification Prep 2025 vs ABIS I

The clearest difference is ads: ABIS I at none against CISSP Certification Prep 2025's shown. CISSP Certification Prep 2025's advantage is iOS requirement (12.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | CISSP Certification Prep 2025 | ABIS I |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Size | 59 MB | 37 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ZIROTEK Corp.](https://appshunter.io/developer/1209821727) | [Sanjay Saklani](https://appshunter.io/developer/1703045506) |

## What reviewers say

### CISSP Certification Prep 2025

[App page](https://appshunter.io/ios/app/cissp-certification-prep-2025/id6738706889)

**Features:** macOS Compatibility

**In-app purchases:** none


### ABIS I

[App page](https://appshunter.io/ios/app/abis-i-learn/id6758036758)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CISSP Certification Prep 2025 free?

CISSP Certification Prep 2025 is free to download, with no in-app purchases.

### Is ABIS I free?

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

### Do CISSP Certification Prep 2025 or ABIS I have ads?

CISSP Certification Prep 2025 shows ads; ABIS I does not.

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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.*