# CISSP Flashcards Pro vs Locked In

The clearest difference is update cadence: Locked In at every 2 weeks against CISSP Flashcards Pro's every 4 months. CISSP Flashcards Pro's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CISSP Flashcards Pro sells 1 one-off in-app purchase and Locked In sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CISSP Flashcards Pro ships an update every 4 months, Locked In every 2 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CISSP Flashcards Pro | Locked In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (190 ratings)](https://appshunter.io/ios/app/cissp-flashcards-pro/id1252354597/reviews)** | — |
| Number of ratings | **190** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [laurie hocking](https://appshunter.io/developer/1250182050) | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) |

## What reviewers say

### CISSP Flashcards Pro

[App page](https://appshunter.io/ios/app/cissp-flashcards-pro/id1252354597)

Prepare for the CISSP exam with expert-designed flashcards covering all domains. Study efficiently on the go and boost memory recall to pass your certification on the first attempt.

**Highlights:** Expert-designed flashcards, Covers all CISSP domains, Over 500+ flashcards, Study on-the-go interface, Boosts memory recall

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock 550+ flashcards! | $9.99 | one-time |


### Locked In

[App page](https://appshunter.io/ios/app/locked-in-prep-for-securityx/id6770693421)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Locked In! SecurityX Unlock | $14.99 | one-time |


## Frequently asked questions

### Is CISSP Flashcards Pro free?

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

### Is Locked In free?

Locked In is free to download, with in-app purchases available.

### Do CISSP Flashcards Pro or Locked In have ads?

Neither CISSP Flashcards Pro nor Locked In shows ads.

### Which is updated more often, CISSP Flashcards Pro or Locked In?

CISSP Flashcards Pro ships an update every 4 months, and Locked In every 2 weeks. Most recently, CISSP Flashcards Pro was updated on October 23, 2026 and Locked In on October 25, 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.*