Calculator

a calculator that can hide your private files

AppID:	devs.org.calculator
Author:	Binondi Borthakur
License:	Apache-2.0
Donation:	Webpage
InRepoSince:	2025-06-02
LastRepoUpdate:	2025-06-08
LastAppUpdate:	2025-06-08
LastVersion:	1.4.1
Categories:	Security, Office
APK source:	Github
Google Play:	Check if it's there

The Calculator Hide File App is an innovative Android file-hiding app that disguises itself as a fully functional calculator. It helps you securely store private files and protect them with a hidden passcode.

Features:

Dual Functionality: A working calculator & a file vault in one app.
Secret Passcode: Unlock hidden files by entering a secret code.
Secure File Manager: Hide/unhide files easily.
Fast & Lightweight: Smooth performance on all Android devices.
No Root Required: Works without rooting your phone.

Download Source Issues ChangeLog

While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device. Some clients have this repo enabled by default, e.g. Neo Store, Droid-ify, or, of course, the IzzyOnDroid client by Sunil. With others (like the official client) you'll have to add this repo manually (see the hint on top of the package list for how to do that).

Packages

Version 1.4.1 (2025-06-08)

Android Versions:

Target: 14.0
MinVer: 8.0

Signing Blocks

Permissions:

Malware-Check:Passed

53 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
AndroidX Activity (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
Android Jetpack Annotations (Utility)
library that contains the annotations for Android Jetpack.
Arch (Utility)
helper for other arch dependencies, including JUnit test rules that can be used with LiveData.
AppCompat (Utility)
support newer Android features on older Android versions.
Cardview (UI Component)
AndroidX library to implement the Material Design card pattern with round corners and drop shadows.
Android Support Library collections (Utility)
standalone efficient collections.
Concurrent (Utility)
AndroidX library to help move tasks off the main thread with coroutines and take advantage of ListenableFuture.
Constraint Layout Library (Utility)
library to reduce the number of nested views needed.
Coordinatorlayout (UI Component)
AndroidX library to position top-level application widgets, such as AppBarLayout and FloatingActionButton.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
AndroidX Cursor Adapter (Utility)
static library support version of the framework's CursorAdapter.
Android Support Library Custom View (UI Component)
a module to implement custom views. Part of the Android Support Library.
Documentfile (UI Component)
a library to view a file document.
Drawerlayout (UI Component)
AndroidX library to implement a Material Design drawer widget.
Dynamicanimation (UI Component)
create smooth animations with a physics-based animation API.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Exifinterface (Utility)
a library to read and write image file EXIF tags.
AndroidX Fragment (UI Component)
AndroidX library to encapsulate part of the user interface or behavior into reusable components.
AndroidX GridLayout (UI Component)
AndroidX library to implement a grid layout.
Interpolator (UI Component)
AndroidX library to use animation interpolators on older platforms.
androidx.legacy (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
Loader (Utility)
library to load data for your UI that survives configuration changes.
AndroidX Local Broadcast Manager (Utility)
an application-wide event bus and embraces layer violations in your app: any component may listen events from any other.
Print (Utility)
a library to print photos, docs, and other graphics and images.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
ResourceInspection (Development Aid)
AndroidX library to surface the attributes of custom views in Android Studio’s Live Layout Inspector.
Room (Utility)
a persistence library that provides an abstraction layer over SQLite to allow for more robust database access while harnessing the full power of SQLite.
Recyclerview (Utility)
display large sets of data in your UI while minimizing memory usage.
Android Activity Saved State (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
Sqlite (Utility)
library that contains abstract interfaces along with basic implementations which can be used to build your own libraries that access SQLite.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Swiperefreshlayout (UI Component)
implemtation of the swipe-to-refresh UI pattern.
Tracing (Utility)
AndroidX library to write trace events to the system trace buffer.
Transition (UI Component)
animates motion in the UI with starting and ending layouts.
Vectordrawable (UI Component)
AndroidX library to render vector graphics.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Viewpager (UI Component)
AndroidX library to display Views or Fragments in a swipeable format.
AndroidX Widget ViewPager2 (UI Component)
replaces AndroidX ViewPager, addressing most of its predecessor’s pain-points, including right-to-left layout support, vertical orientation, modifiable Fragment collections, etc.
Lottie for Android (UI Component)
Render After Effects animations natively.
Glide (Utility)
An image loading and caching library for Android focused on smooth scrolling
Google Material Design (Utility)
library to help with material design guidelines.
Google Core Libraries for Java 6+ (Utility)
a set of core libraries that includes new collection types (such as multimap and multiset), immutable collections, a graph library, functional types, an in-memory cache, and APIs/utilities for concurrency, I/O, hashing, primitives, reflection, string processing, and much more.
Error Prone (Utility)
a static analysis tool for Java that catches common programming mistakes at compile-time.
zoomage (UI Component)
a simple pinch-to-zoom ImageView library.
Kotlin (Utility)
The Kotlin Programming Language
kotlinx.coroutines (Utility)
library support for Kotlin coroutines.
exp4j (Utility)
library evaluating expressions and functions.
OkHttp okio Framework (Utility)
A modern I/O API for Java to make it much easier to access, store, and process your data.
IntelliJ IDEA (Utility)
development helper: integration for the IntelliJ IDEA IDE.
JSpecify (Development Aid)
an artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.
PhotoView (UI Component)
ImageView for Android that supports zooming, by various touch gestures.

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Version 1.2 (2025-06-02)

Android Versions:

Target: 14.0
MinVer: 8.0

Signing Blocks

Permissions:

Malware-Check:Passed

46 Libraries detected:

Libraries:

Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see Understanding the Android Support Library.
AndroidX Activity (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
Android Jetpack Annotations (Utility)
library that contains the annotations for Android Jetpack.
Arch (Utility)
helper for other arch dependencies, including JUnit test rules that can be used with LiveData.
AppCompat (Utility)
support newer Android features on older Android versions.
Asynclayoutinflater (UI Component)
AndroidX library to inflate layouts asynchronously to avoid jank in the UI.
Cardview (UI Component)
AndroidX library to implement the Material Design card pattern with round corners and drop shadows.
Android Support Library collections (Utility)
standalone efficient collections.
Concurrent (Utility)
AndroidX library to help move tasks off the main thread with coroutines and take advantage of ListenableFuture.
Constraint Layout Library (Utility)
library to reduce the number of nested views needed.
Coordinatorlayout (UI Component)
AndroidX library to position top-level application widgets, such as AppBarLayout and FloatingActionButton.
Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
AndroidX Cursor Adapter (Utility)
static library support version of the framework's CursorAdapter.
Android Support Library Custom View (UI Component)
a module to implement custom views. Part of the Android Support Library.
Documentfile (UI Component)
a library to view a file document.
Drawerlayout (UI Component)
AndroidX library to implement a Material Design drawer widget.
Dynamicanimation (UI Component)
create smooth animations with a physics-based animation API.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Exifinterface (Utility)
a library to read and write image file EXIF tags.
AndroidX Fragment (UI Component)
AndroidX library to encapsulate part of the user interface or behavior into reusable components.
AndroidX GridLayout (UI Component)
AndroidX library to implement a grid layout.
Interpolator (UI Component)
AndroidX library to use animation interpolators on older platforms.
androidx.legacy (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
Loader (Utility)
library to load data for your UI that survives configuration changes.
AndroidX Local Broadcast Manager (Utility)
an application-wide event bus and embraces layer violations in your app: any component may listen events from any other.
Print (Utility)
a library to print photos, docs, and other graphics and images.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
ResourceInspection (Development Aid)
AndroidX library to surface the attributes of custom views in Android Studio’s Live Layout Inspector.
Recyclerview (Utility)
display large sets of data in your UI while minimizing memory usage.
Android Activity Saved State (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
Slidingpanelayout (UI Component)
AndroidX library to implement a sliding pane UI pattern.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Swiperefreshlayout (UI Component)
implemtation of the swipe-to-refresh UI pattern.
Tracing (Utility)
AndroidX library to write trace events to the system trace buffer.
Transition (UI Component)
animates motion in the UI with starting and ending layouts.
Vectordrawable (UI Component)
AndroidX library to render vector graphics.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
Viewpager (UI Component)
AndroidX library to display Views or Fragments in a swipeable format.
AndroidX Widget ViewPager2 (UI Component)
replaces AndroidX ViewPager, addressing most of its predecessor’s pain-points, including right-to-left layout support, vertical orientation, modifiable Fragment collections, etc.
Glide (Utility)
An image loading and caching library for Android focused on smooth scrolling
Google Material Design (Utility)
library to help with material design guidelines.
zoomage (UI Component)
a simple pinch-to-zoom ImageView library.
Kotlin (Utility)
The Kotlin Programming Language
kotlinx.coroutines (Utility)
library support for Kotlin coroutines.
exp4j (Utility)
library evaluating expressions and functions.

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library evaluating expressions and functions.

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library evaluating expressions and functions.

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