# CISSP Secure Test Prep 2026 vs MathMentor App

CISSP Secure Test Prep 2026 and MathMentor App are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. CISSP Secure Test Prep 2026 sells 5 in-app purchases, starting at $1.99 per month and MathMentor App sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CISSP Secure Test Prep 2026 ships an update every 6 weeks, MathMentor App every 2 months. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CISSP Secure Test Prep 2026 | MathMentor App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cissp-secure-test-prep-2026/id6743873719/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 110 MB |
| Requires iOS | **14.1** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sayem Hossain](https://appshunter.io/developer/1787693140) | [MATHMENTOR LTD](https://appshunter.io/developer/6779202119) |

## What reviewers say

### CISSP Secure Test Prep 2026

[App page](https://appshunter.io/ios/app/cissp-secure-test-prep-2026/id6743873719)

Prepare for ISC2 certifications like CISSP, CCSP, and SSCP with practice tests, flashcards, and study guides. Designed by security professionals, it offers exam-ready content and proven study tools for success.

**Highlights:** 2025 Exam-Ready Content, Practice Questions & Mock Exams, Spaced Repetition Flashcards, Real Exam Simulator, Offline Access, Progress Tracking

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $1.99 | per month |
| Full Access | $4.99 | per month |
| Full Access | $9.99 | per year |
| Full Access | $29.99 | per year |
| Full Access | $14.99 | one-time |


### MathMentor App

[App page](https://appshunter.io/ios/app/mathmentor-app/id6779202117)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buisiness math 1 | $500.00 | one-time |
| Business Math 2 MATH 221 | $500.00 | one-time |
| Numerical Methods | $609.00 | one-time |
| Calculus 1 | $639.00 | one-time |
| Calculus 3 | $669.00 | one-time |
| Calculus 2 MATH2010 | $669.00 | one-time |
| Probability and Statistics | $679.00 | one-time |
| Calculus 1 (lusail university) | $689.00 | one-time |
| LinearAlgebra LusailUniversity | $689.00 | one-time |
| Mathematics For Engineering | $700.00 | one-time |


## Frequently asked questions

### Is CISSP Secure Test Prep 2026 free?

CISSP Secure Test Prep 2026 is free to download, with in-app purchases available.

### Is MathMentor App free?

MathMentor App is free to download, with in-app purchases available.

### Do CISSP Secure Test Prep 2026 or MathMentor App have ads?

Neither CISSP Secure Test Prep 2026 nor MathMentor App shows ads.

### Which is updated more often, CISSP Secure Test Prep 2026 or MathMentor App?

CISSP Secure Test Prep 2026 ships an update every 6 weeks, and MathMentor App every 2 months. Most recently, CISSP Secure Test Prep 2026 was updated on September 30, 2026 and MathMentor App on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*