# PhlashCards Security Test Prep vs Spirkz

The clearest difference is in-app purchases: Spirkz at none against PhlashCards Security Test Prep's 4. Spirkz also leads on update cadence (every 3 days vs every 3 months) and iOS requirement (16.4 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. PhlashCards Security Test Prep sells 4 one-off in-app purchases. Spirkz asks for nothing beyond the download.

PhlashCards Security Test Prep ships an update every 3 months, Spirkz every 3 days. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PhlashCards Security Test Prep | Spirkz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 64 MB | 57 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hodge Podgin LLC](https://appshunter.io/developer/1873814194) | [Iviko Shengelia](https://appshunter.io/developer/6808384289) |

## What reviewers say

### PhlashCards Security Test Prep

[App page](https://appshunter.io/ios/app/phlashcards-security-test-prep/id6759810555)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Security+ Premium | $14.99 | one-time |
| Pentest+ Premium | $14.99 | one-time |
| SecAI+ Premium | $19.99 | one-time |
| CISSP Premium | $19.99 | one-time |


### Spirkz

[App page](https://appshunter.io/ios/app/spirkz/id6808384287)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PhlashCards Security Test Prep free?

PhlashCards Security Test Prep is free to download, with in-app purchases available.

### Is Spirkz free?

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

### Do PhlashCards Security Test Prep or Spirkz have ads?

Neither PhlashCards Security Test Prep nor Spirkz shows ads.

### Which is updated more often, PhlashCards Security Test Prep or Spirkz?

PhlashCards Security Test Prep ships an update every 3 months, and Spirkz every 3 days. Most recently, PhlashCards Security Test Prep was updated on October 8, 2026 and Spirkz on October 2, 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.*