# Frustum of a Pyramid PRO vs ECDE DevSecOps Engineer Prep

The clearest difference is price: ECDE DevSecOps Engineer Prep at Free against Frustum of a Pyramid PRO's $2.99. Frustum of a Pyramid PRO's advantage is update cadence (monthly vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ECDE DevSecOps Engineer Prep is free to download; Frustum of a Pyramid PRO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Frustum of a Pyramid PRO ships an update monthly, ECDE DevSecOps Engineer Prep every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Frustum of a Pyramid PRO | ECDE DevSecOps Engineer Prep |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 181 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### Frustum of a Pyramid PRO

[App page](https://appshunter.io/ios/app/frustum-of-a-pyramid-pro/id6461117378)

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

**In-app purchases:** none


### ECDE DevSecOps Engineer Prep

[App page](https://appshunter.io/ios/app/ecde-devsecops-engineer-prep/id6758333994)

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

**In-app purchases:** none


## Frequently asked questions

### Is Frustum of a Pyramid PRO free?

Frustum of a Pyramid PRO costs $2.99, with no in-app purchases.

### Is ECDE DevSecOps Engineer Prep free?

ECDE DevSecOps Engineer Prep is free to download, with no in-app purchases.

### Do Frustum of a Pyramid PRO or ECDE DevSecOps Engineer Prep have ads?

Neither Frustum of a Pyramid PRO nor ECDE DevSecOps Engineer Prep shows ads.

### Which is updated more often, Frustum of a Pyramid PRO or ECDE DevSecOps Engineer Prep?

Frustum of a Pyramid PRO ships an update monthly, and ECDE DevSecOps Engineer Prep every 4 months. Most recently, Frustum of a Pyramid PRO was updated on October 24, 2026 and ECDE DevSecOps Engineer Prep 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.*