Best Hidden Calculator Free Apps

4.4😞(29K ratings)

FreeIn-App Purchases

Calculator# Hide Photos Videos screenshot 1

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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.

What We Love

🔒 Discreet and easy to use
👍 No storage restrictions in free version
🚀 Occasional short ads are a small price to pay
🔒 Multilayered security options (pattern, PIN, biometrics)
👍 Fake error message on startup

Room to Improve

🐛 Password recovery issues
🐛 Unreliable file storage and retrieval
🐛 Subscription issues, unable to access premium features
🐛 Sudden app crashes and data loss
🐛 Extremely loud video playback volume
🐛 Inability to move/delete stored items

Calculator₊ by Impala Studios

Basic, Scientific, Plus Calc

Strong Contender

Secret Photo Album · 1Locker

4.7😞(1.7M ratings)

FreeAdsIn-App Purchases

#100in Utilities

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.

What We Love

💻 Useful calculator features
🎨 Customizable backgrounds and themes
📚 Helpful history tracking

Room to Improve

📺 Intrusive full-screen ads
💰 Expensive subscription model
🔍 Ads blocking calculator functionality

Hide Photos: Secret Vault by Roman Kotov

Hide Files & Private Folder

Worth Considering

📷 Photo & Video

4.6(102 ratings)

FreeAdsIn-App Purchases

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.

More Hidden Calculator Free apps to explore

Private Photo & Video Vault

PIN and biometric protectionDecoy accountPrivate web browser

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 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.

Basic and scientific calculatorsType or write math expressionsInline equation solving

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.

Large buttonsClear displayFast calculations

(409K)

ad-supported

Calculator HD Pro Lite

Basic & Scientific Calc

Dual-line displayCalculation historyFull scientific functions

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

Calculator Lock - Secure Vault

(51K)

ad-supported

Hide Photos, Private Photos

Photo hidingVideo hidingContact hiding

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.

(6.1K)

Basic & Scientific Calculator

Calculator for iPad!

Basic and scientific calculator modesOver 30 scientific operationsCustomizable appearance (iPad)

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.

Scientific Calculator - Cal

(61K)

free

A Better Scientific Calculator

Natural input expression entryInstant calculation resultsNumber and expression format display

Perform complex calculations with a natural input interface. This app offers instant results in both number and expression formats, supporting a wide range of mathematical functions. Enjoy a clean design with customizable options and offline availability.

(1)

Calculator #

Scientific Calculator

Math Photos SolverHandwriting RecognitionAI Math Problem Solver

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

(36K)

Smart Calculator & Converter

Calculator: EasyCalc

Basic and scientific calculationsFinancial and loan calculatorsUnit conversion

This app offers a comprehensive suite of calculation tools, including basic, scientific, and financial calculators, alongside unit conversions and personal utilities. It simplifies everyday math, financial planning, and unit transformations for students and professionals alike.

(4)

Basic Four Function Calculator

Basic Calculator+

Basic four functionsClear displayLarge buttons

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.

(243K)

by Mobile Application Solutions, Inc.

DigiColor Calculator

Color-coded digits for visual recognitionCustomizable colors and shadow effectsHelps prevent number transposition

This app helps prevent number transposition errors in calculations by assigning unique colors and optional shadow effects to each digit. Customize colors and effects to enhance visual recognition and make calculations more enjoyable and accurate.

💰 Finance

(4)

Calculator∫

by 7th Gear

Large buttons for easy inputAccurate calculationsCustomizable background colors

Perform calculations quickly and accurately with large buttons. Personalize the interface by selecting custom background and text colors. This straightforward utility is designed for intuitive use.

Calculator + Worksheets

Running math expression displayCalculation history list34 predesigned worksheets

This utility app offers a powerful calculator with a running expression history and undo functionality. It includes specialized worksheets for common tasks like tipping, currency conversion, and loan payments, with additional worksheets available via in-app purchase.

(4)

Calculator for iPhone and iPad

You can count on it

Basic arithmetic operationsAdvanced scientific functionsHistory bar for past calculations

A straightforward and intuitive calculator app designed for ease of use. It offers a history bar, customizable themes, and advanced mathematical functions, ensuring a pleasant and efficient calculation experience on your device.

(15K)

Math in words: units, currency

Sigma Notepad Calculator

Editable History Calculator

Edit past calculations with precise cursor placementAdd notes to calculation groupsTrack subtotals

This app allows you to edit past calculations, making it easy to correct mistakes or continue complex math problems. It offers features like adding notes, tracking subtotals, and saving archives for organized financial management and everyday use.

(1)

LumioCalc: Math Calculator

Premium scientific calculator

Scientific calculator functionsDegree/radian modesFull expression support

A fast and customizable scientific calculator for iPhone and iPad. It offers advanced functions, a scrollable history, and premium themes for a personalized user experience. Ideal for students, engineers, and everyday calculations.

(1)