231+ iOS apps curated and reviewed
Looking for free hidden calculator free apps? 20 of our 231+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (102) | Yes | Yes | Jul 2026 |
| 2 |  | Free | 4.4★ (29K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.7★ (14K) | No | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (1.7M) | Yes | Yes | Aug 2026 |
| 5 |  | Free | 4.6★ (6.1K) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 4.5★ (2.5K) | Yes | Yes | Aug 2026 |
| 7 |  | Free | 3.0★ (8.9K) | No | No | Aug 2026 |
| 8 |  | Free | 4.9★ (404K) | Yes | No | Aug 2026 |
Securely store private photos, videos, and documents on your device. Organize files into separate vaults with custom hierarchies and disguise the app's appearance. Offers Wi-Fi transfer and a private browser for enhanced privacy.
This app disguises itself as a calculator to secretly store photos, videos, documents, notes, passwords, and more. It offers robust security features to protect your confidential information from prying eyes and hackers.
Securely store your private photos, videos, passwords, and notes with PIN and biometric protection. Organize media into customizable albums and browse the web privately. Offers cloud backup and decoy accounts for enhanced privacy.
This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.
Securely hide your private photos, videos, contacts, and passwords behind a disguised calculator interface. Protect your sensitive files with a secret vault and access them only through the app's unique interface. Features include intruder selfies and cloud backups.
Secure your digital life by locking apps, protecting photos and videos in a private vault, and browsing the web anonymously. Store contacts, passwords, and notes safely with passcode protection.
This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
Securely store private photos, videos, and notes with advanced locking options. Capture new media within the app and manage files via WiFi or cloud services. Offers anti-theft measures and customizable features for enhanced privacy.
Securely store your private photos and videos behind a functional calculator interface. Organize media into albums, edit images, and view metadata. All data is stored locally on your device for maximum privacy.
Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.
Securely store your private photos, videos, contacts, and passwords with PIN protection. This app provides a safe space for your precious memories and sensitive information, including a private browser that leaves no trace.
This private browser offers a secure way to browse the internet, automatically protecting your history and bookmarks. It disguises itself as a calculator on your home screen, only revealing its browsing capabilities when a passcode is entered. Your data remains private and inaccessible to other apps.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.
This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.
Securely store and protect your private photos and videos with a hidden library. Features include backup, trash recovery, unlimited storage, and album-specific password protection. Disguise the app icon for added privacy.
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
Securely store and hide private photos and videos with PIN protection, fingerprint ID, and encryption. Organize important documents and save phone space with this popular photo locker.
A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.