Secure Files vs Math Simply
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Secure Files
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!
- Password-protected file encryption
- Nested protected folders
- PIN protection for app access
- Local storage, no cloud backup
- Unlimited folders
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When importing your files in a protected folder, they are encrypted with a password hash and stored inside the app. The hash of the password is stored in the Keychain. What does all this mean? It means that at no point of time the actual password is stored physically. Nobody can know it, except you! Moreover, the files inside the app are stored encrypted as well, so even if you lose your phone or it gets Jailbroken, by no means can someone open and view these files. You can have an unlimited number of folders, protected with different passwords, inside other protected folders! To further restrict anyone from accessing the contents of the app you can set a PIN protection. Secure Files does not have a backup feature, it does not store your files in the cloud. This is intended, and, once you forget the PIN or the password for a certain folder - consider those files gone FOREVER! By using the app you agree to the following Data Privacy: https://docs.google.com/document/d/1JscieYYg0Mar4UfKO7Gq1WrK9UQDm5RsnBs321nPr5s/ In case of questions, use the app's "Give Feedback" feature or contact me at help.encrypted.files@gmail.com
Math Simply
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.
- Home screen widget calculator
- Unit converter (100+ units)
- Cache memory function
- User-friendly hints
- Global localization
- Personalization options
- One-time purchase for life
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NO Advertising, Math Simply is an easy-to-use calculator with a minimalist design that allows users to place the calculator on the Home Screen of their iOS or macOS device to perform calculations directly without opening the app itself. The widget calculator has an almost identical calculation experience to the main APP. Version 2.0.0 introduces a brand-new unit converter feature, offering conversions for over 100 units across 10 categories, with more content to be added in future updates. It has the following features: 1. Easy-to-use interface – has the same design interface as the traditional calculator, simple and clear. 2. Has almost the same widget calculation experience as the main program (the widget calculator only lacks the cache memory function). 3. Adopts the cache memory function and provides four cache operation buttons, which is convenient for diversified calculations. 4. User-friendly hints – hints for “Previous Result”, “current operator” and operation status during calculations. 5. Global Localization – Math Simply not only supports 12 languages, but also provides globalization support, whether you are used to using “.” or “,” as a decimal point, or “,” or “‘” as a thousands separator, Math Simply adapts to your needs in real time. 6. Personalization – For display modes, button vibration, button shapes and colors, and even display fonts, Math Simply offers adjustments to provide a variety of personalized settings. 7. Unit Converter - Quick and intuitive unit conversions, with customizable precision control. 8. Future Upgrades – Math Simply is a one-time purchase and download for life, with access to all future upgrades (including more convenient calculation features). Math Simply currently supports all iPhone and iPad devices with iOS 17 installed. In addition, thanks to the characteristics of the M series chips, Mac with Apple Silicon chips can also install this app and use the Widget Calculator function. In the near future, Math Simply will also add more convenient features, aiming to help users calculate more conveniently. Thank you for your support!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Secure Files | Math Simply |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | 4.2 (23 ratings) — better | — |
| Positive reviews | 68.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | — |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Igor Fedotov | 振捷 周 |
Customer experience
Secure Files
Math Simply
In-app purchases
Secure Files
No in-app purchases
Math Simply
No in-app purchases









