# SecurePro plus vs Computer Science Calculations

The clearest difference is in-app purchases: SecurePro plus at none against Computer Science Calculations's 3. SecurePro plus also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Computer Science Calculations sells 3 in-app purchases, starting at $0.99 per 3 months. SecurePro plus asks for nothing beyond the download.

SecurePro plus ships an update every 2 months, Computer Science Calculations monthly. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | SecurePro plus | Computer Science Calculations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Size | 28 MB | 26 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AV Design Solution Corp.](https://appshunter.io/developer/601262169) | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) |

## What reviewers say

### SecurePro plus

[App page](https://appshunter.io/ios/app/securepro-plus/id1064009874)

**Features:** macOS Compatibility

**In-app purchases:** none


### Computer Science Calculations

[App page](https://appshunter.io/ios/app/computer-science-calculations/id1488787780)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (3 months) | $0.99 | per 3 months |
| PRO Version (1 year) | $2.49 | per year |
| PRO Version (Lifetime) | $89.99 | one-time |


## Frequently asked questions

### Is SecurePro plus free?

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

### Is Computer Science Calculations free?

Computer Science Calculations is free to download, with in-app purchases available.

### Do SecurePro plus or Computer Science Calculations have ads?

Computer Science Calculations shows ads; SecurePro plus does not.

### Which is updated more often, SecurePro plus or Computer Science Calculations?

SecurePro plus ships an update every 2 months, and Computer Science Calculations monthly. Most recently, SecurePro plus was updated on September 26, 2026 and Computer Science Calculations on September 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.*