# CISSP Prep vs Jargon

The clearest difference is in-app purchases: Jargon at none against CISSP Prep's 3. CISSP Prep's advantage is update cadence (weekly vs monthly) and iOS requirement (14.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. CISSP Prep sells 3 in-app purchases, starting at $4.99 per 7 days. Jargon asks for nothing beyond the download.

CISSP Prep ships an update weekly, Jargon monthly. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | CISSP Prep | Jargon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 36 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SG APPs](https://appshunter.io/developer/1507658418) | [Mathew Brown](https://appshunter.io/developer/6796435386) |

## What reviewers say

### CISSP Prep

[App page](https://appshunter.io/ios/app/cissp-prep/id6740624648)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Subscription CISSP Prep | $4.99 | per 7 days |
| 1 Month CISSP Prep Access | $7.99 | per month |
| 6Months CISSP Prep Access | $9.99 | per 6 months |


### Jargon

[App page](https://appshunter.io/ios/app/jargon-hacker-dictionary/id6796777990)

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

**In-app purchases:** none


## Frequently asked questions

### Is CISSP Prep free?

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

### Is Jargon free?

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

### Do CISSP Prep or Jargon have ads?

Neither CISSP Prep nor Jargon shows ads.

### Which is updated more often, CISSP Prep or Jargon?

CISSP Prep ships an update weekly, and Jargon monthly. Most recently, CISSP Prep was updated on November 8, 2026 and Jargon on November 10, 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.*