# Big Number Calculator Pro vs Encrypto Secure

The clearest difference is price: Encrypto Secure at Free against Big Number Calculator Pro's $0.99. Big Number Calculator Pro's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 17.0). On ads and device support there is nothing between them.

Encrypto Secure is free to download; Big Number Calculator Pro costs $0.99 up front. Encrypto Secure sells 1 one-off in-app purchase. Big Number Calculator Pro asks for nothing beyond the download.

## The numbers

| Metric | Big Number Calculator Pro | Encrypto Secure |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Size | 24 MB | 17 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tuyen Nguyen](https://appshunter.io/developer/1815134704) | [GNS Tech](https://appshunter.io/developer/1884725888) |

## What reviewers say

### Big Number Calculator Pro

[App page](https://appshunter.io/ios/app/big-number-calculator-pro/id6747635282)

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

**In-app purchases:** none


### Encrypto Secure

[App page](https://appshunter.io/ios/app/encrypto-secure/id6760504291)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Encrypto Premium | $4.99 | one-time |


## Frequently asked questions

### Is Big Number Calculator Pro free?

Big Number Calculator Pro costs $0.99, with no in-app purchases.

### Is Encrypto Secure free?

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

### Do Big Number Calculator Pro or Encrypto Secure have ads?

Neither Big Number Calculator Pro nor Encrypto Secure shows ads.

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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.*