# Secure Files vs Math Simply

The clearest difference is review sentiment: Math Simply at 100% against Secure Files's 69%. Math Simply also leads on price ($1.99 vs $3.99). Secure Files's advantage is iOS requirement (15.0 vs 17.0). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Secure Files costs $3.99 and Math Simply $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Secure Files ships an update every 5 weeks, Math Simply every 2 months. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Secure Files | Math Simply |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[4.2 (23 ratings)](https://appshunter.io/ios/app/secure-files-personal-vault/id1399630371/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 68.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 10 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Igor Fedotov](https://appshunter.io/developer/662070286) | [振捷 周](https://appshunter.io/developer/1526093328) |

## What reviewers say

### Secure Files

[App page](https://appshunter.io/ios/app/secure-files-personal-vault/id1399630371)

Securely store and encrypt your sensitive files with password-protected folders. Your data is encrypted locally, ensuring privacy even if your device is lost or compromised. No cloud backup means ultimate control, but remember your passwords!

**Highlights:** Password-protected file encryption, Nested protected folders, PIN protection for app access, Local storage, no cloud backup, Unlimited folders

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Simply

[App page](https://appshunter.io/ios/app/math-simply/id6468932496)

This app offers a simple, ad-free calculator with a home screen widget for quick calculations. It also includes a comprehensive unit converter and extensive personalization options. Future updates are included with a one-time purchase.

**Highlights:** Home screen widget calculator, Unit converter (100+ units), Cache memory function, User-friendly hints, Global localization, Personalization options, One-time purchase for life

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

**In-app purchases:** none


## Frequently asked questions

### Is Secure Files free?

Secure Files costs $3.99, with no in-app purchases.

### Is Math Simply free?

Math Simply costs $1.99, with no in-app purchases.

### Do Secure Files or Math Simply have ads?

Neither Secure Files nor Math Simply shows ads.

### Which is updated more often, Secure Files or Math Simply?

Secure Files ships an update every 5 weeks, and Math Simply every 2 months. Most recently, Secure Files was updated on September 29, 2026 and Math Simply on October 7, 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.*