# CISM Exam Prep vs ISO 27001 Implementer Exam

The clearest difference is update cadence: ISO 27001 Implementer Exam at every 6 weeks against CISM Exam Prep's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CISM Exam Prep sells 6 in-app purchases, starting at $7.99 per 7 days and ISO 27001 Implementer Exam sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CISM Exam Prep ships an update every 4 months, ISO 27001 Implementer Exam every 6 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CISM Exam Prep | ISO 27001 Implementer Exam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 24 MB | 49 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Lorenzini](https://appshunter.io/developer/1330339407) |

## What reviewers say

### CISM Exam Prep

[App page](https://appshunter.io/ios/app/cism-exam-prep-isaca-study/id6752305715)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $7.99 | per 7 days |
| 1 Month | $19.99 | per month |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


### ISO 27001 Implementer Exam

[App page](https://appshunter.io/ios/app/iso-27001-implementer-exam/id6796437997)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $34.99 | one-time |


## Frequently asked questions

### Is CISM Exam Prep free?

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

### Is ISO 27001 Implementer Exam free?

ISO 27001 Implementer Exam is free to download, with in-app purchases available.

### Do CISM Exam Prep or ISO 27001 Implementer Exam have ads?

Neither CISM Exam Prep nor ISO 27001 Implementer Exam shows ads.

### Which is updated more often, CISM Exam Prep or ISO 27001 Implementer Exam?

CISM Exam Prep ships an update every 4 months, and ISO 27001 Implementer Exam every 6 weeks. Most recently, CISM Exam Prep was updated on October 28, 2026 and ISO 27001 Implementer Exam 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.*