# AllCBTs vs SIA Exam Prep App

The clearest difference is in-app purchases: AllCBTs at none against SIA Exam Prep App's 7. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SIA Exam Prep App sells 7 one-off in-app purchases. AllCBTs asks for nothing beyond the download.

AllCBTs ships an update monthly, SIA Exam Prep App every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AllCBTs | SIA Exam Prep App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 1 MB | 19 MB |
| Requires iOS | 17.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALLNEEDS LLC](https://appshunter.io/developer/1810082450) | [LetsGetStashd Ltd](https://appshunter.io/developer/6785071421) |

## What reviewers say

### AllCBTs

[App page](https://appshunter.io/ios/app/allcbts-computer-based-tests/id6744944593)

**Features:** macOS Compatibility

**In-app purchases:** none


### SIA Exam Prep App

[App page](https://appshunter.io/ios/app/sia-exam-prep-app-security/id6807756920)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SIA Door Supervisor – Refresher | $2.99 | one-time |
| SIA Security Guard – Refresher | $2.99 | one-time |
| SIA CCTV Operator | $3.99 | one-time |
| Door Supervisor – Full Access | $4.99 | one-time |
| SIA Security Guard | $4.99 | one-time |
| SIA Close Protection | $4.99 | one-time |
| Unlock all courses (bundle) | $9.99 | one-time |


## Frequently asked questions

### Is AllCBTs free?

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

### Is SIA Exam Prep App free?

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

### Do AllCBTs or SIA Exam Prep App have ads?

Neither AllCBTs nor SIA Exam Prep App shows ads.

### Which is updated more often, AllCBTs or SIA Exam Prep App?

AllCBTs ships an update monthly, and SIA Exam Prep App every 3 weeks. Most recently, AllCBTs was updated on November 5, 2026 and SIA Exam Prep App on October 31, 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.*