# Numerical Reasoning Revision vs SIA Exam Prep App

The clearest difference is update cadence: SIA Exam Prep App at every 3 weeks against Numerical Reasoning Revision's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Numerical Reasoning Revision sells 2 in-app purchases, starting at $12.99 per month and SIA Exam Prep App sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Numerical Reasoning Revision ships an update every 2 months, SIA Exam Prep App every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Numerical Reasoning Revision | SIA Exam Prep App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 19 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Adnan Sheikh](https://appshunter.io/developer/478871268) | [LetsGetStashd Ltd](https://appshunter.io/developer/6785071421) |

## What reviewers say

### Numerical Reasoning Revision

[App page](https://appshunter.io/ios/app/numerical-reasoning-revision/id6748986592)

Prepare for job assessments and exams by mastering numerical reasoning skills. This app helps you interpret data, identify trends, and improve decision-making speed. Explore study modes for free and unlock comprehensive practice with in-app purchases.

**Highlights:** Master numerical reasoning, Interpret data and spot trends, Improve decision-making speed, Build confidence, Study mode available, Full mock exams and practice sets

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Questions (3 Day Trial) | $12.99 | per month |
| Unlock All Questions Monthly | $12.99 | per month |


### 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 Numerical Reasoning Revision free?

Numerical Reasoning Revision is free to download, with in-app purchases available.

### Is SIA Exam Prep App free?

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

### Do Numerical Reasoning Revision or SIA Exam Prep App have ads?

Neither Numerical Reasoning Revision nor SIA Exam Prep App shows ads.

### Which is updated more often, Numerical Reasoning Revision or SIA Exam Prep App?

Numerical Reasoning Revision ships an update every 2 months, and SIA Exam Prep App every 3 weeks. Most recently, Numerical Reasoning Revision was updated on November 6, 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.*