# Booster vs Calculator+ Secure Vault

The clearest difference is in-app purchases: Booster at none against Calculator+ Secure Vault's 4. Booster also leads on ads (none vs shown) and iOS requirement (12.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Calculator+ Secure Vault sells 4 in-app purchases, starting at $5.99 per 3 months. Booster asks for nothing beyond the download.

## The numbers

| Metric | Booster | Calculator+ Secure Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (105 ratings)](https://appshunter.io/ios/app/calculator-plus-secure-vault/id6744875928/reviews)** |
| Number of ratings | — | **105** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 89 MB | 72 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Suthipoj tripuwabhrut](https://appshunter.io/developer/1445632800) | [Ahmet Selman Durak](https://appshunter.io/developer/868110029) |

## What reviewers say

### Booster

[App page](https://appshunter.io/ios/app/booster-alphatech/id6742473812)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator+ Secure Vault

[App page](https://appshunter.io/ios/app/calculator-plus-secure-vault/id6744875928)

Securely store and protect your private photos, videos, notes, and credit card information. This encrypted vault offers features like a screenshot blocker and emergency exit for ultimate privacy and peace of mind.

**Highlights:** Photo & Video Vault, Notes & Credit Cards Storage, Cloud Backup (iCloud/Google Drive), Screenshot Blocker, Emergency Exit, Dynamic Security Screen

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator + 3 Monthly Premium | $5.99 | per 3 months |
| Calculator+ 6 Monthly Premium | $9.99 | per 6 months |
| Calculator+ Annual Premium | $17.99 | per year |
| Calculator+ Lifetime Premium | $39.99 | one-time |


## Frequently asked questions

### Is Booster free?

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

### Is Calculator+ Secure Vault free?

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

### Do Booster or Calculator+ Secure Vault have ads?

Calculator+ Secure Vault shows ads; Booster does not.

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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.*