# SIRE 2.0 Prep vs IMCSM ISMS Wiki

The clearest difference is update cadence: SIRE 2.0 Prep at every 6 weeks against IMCSM ISMS Wiki's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SIRE 2.0 Prep ships an update every 6 weeks, IMCSM ISMS Wiki every 3 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SIRE 2.0 Prep | IMCSM ISMS Wiki |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Size | 22 MB | 35 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Ceejo Thomas](https://appshunter.io/developer/1147475045) | [MariApps Marine Solutions Pvt. Ltd.](https://appshunter.io/developer/1040404561) |

## What reviewers say

### SIRE 2.0 Prep

[App page](https://appshunter.io/ios/app/sire-20-prep/id6478749472)

**Features:** macOS Compatibility

**In-app purchases:** none


### IMCSM ISMS Wiki

[App page](https://appshunter.io/ios/app/imcsm-isms-wiki/id6633430284)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIRE 2.0 Prep free?

SIRE 2.0 Prep is free to download, with no in-app purchases.

### Is IMCSM ISMS Wiki free?

IMCSM ISMS Wiki is free to download, with no in-app purchases.

### Do SIRE 2.0 Prep or IMCSM ISMS Wiki have ads?

Neither SIRE 2.0 Prep nor IMCSM ISMS Wiki shows ads.

### Which is updated more often, SIRE 2.0 Prep or IMCSM ISMS Wiki?

SIRE 2.0 Prep ships an update every 6 weeks, and IMCSM ISMS Wiki every 3 months. Most recently, SIRE 2.0 Prep was updated on October 10, 2026 and IMCSM ISMS Wiki on October 24, 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.*