# Computer Science Calculations vs Vault

The clearest difference is ads: Vault at none against Computer Science Calculations's shown. Vault also leads on update cadence (every 6 days vs monthly). On price, in-app purchases, 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 and Vault sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Computer Science Calculations ships an update monthly, Vault every 6 days. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Computer Science Calculations | Vault |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 6 days** |
| Size | 26 MB | 86 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Primatio Cyber Security](https://appshunter.io/developer/1756967023) |

## What reviewers say

### 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 |


### Vault

[App page](https://appshunter.io/ios/app/vault-cofre-de-senhas/id6738934707)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vault Pro | $2.99 | per month |


## Frequently asked questions

### Is Computer Science Calculations free?

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

### Is Vault free?

Vault is free to download, with in-app purchases available.

### Do Computer Science Calculations or Vault have ads?

Computer Science Calculations shows ads; Vault does not.

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

Computer Science Calculations ships an update monthly, and Vault every 6 days. Most recently, Computer Science Calculations was updated on October 23, 2026 and Vault on October 28, 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.*