Entropy

A offline, secure password generator with exact entropy bits measurement.

AppID:	dev.entropy
Author:	Cris
License:	MIT
Donation:
InRepoSince:	2026-08-16
LastRepoUpdate:	2026-08-16
LastAppUpdate:	2026-08-10
LastVersion:	1.0.1
Categories:	Security
APK source:	Github
Google Play:	Check if it's there

Entropy is an open-source, fully offline password generator built for security-conscious users who want complete control over their credential strength.

Instead of arbitrary password ratings, Entropy calculates and displays the exact mathematical entropy (in bits) of your generated passwords based on character pool dynamics.

Key Features:

Exact Entropy Calculation: See precise bit strength metrics updated in real-time.
Fully Offline & Secure: No internet permission required. Your passwords never leave your device.
Anti-Snoop Protection: Includes FLAG_SECURE window integration to block screenshots and hide app previews in the Android recents switcher.
Customizable Character Sets: Toggle uppercase, lowercase, digits, special symbols, and exclude visually ambiguous characters (like 1, l, O, 0).
Modern Material 3 UI: Clean, responsive layout with native Dark Mode support and Jetpack Compose architecture.
Fast Copy: One-tap action to quickly copy generated credentials to your clipboard.

Entropy is built with zero telemetry, zero analytics, and zero external network calls.

Download Metadata 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 1.0.1 (2026-08-16)

Android Versions:

Target: 16.0
MinVer: 8.0
ABIs: arm64-v8a, armeabi-v7a, x86, x86_64

Permissions:

Malware-Check:Passed

27 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.
Autofill (Utility)
improve autofill accuracy via extending hints.
Android Support Library collections (Utility)
standalone efficient collections.
Jetpack Compose (Development Framework)
a framework to define UIs programmatically with composable functions that describe its shape and data dependencies.
Concurrent (Utility)
AndroidX library to help move tasks off the main thread with coroutines and take advantage of ListenableFuture.
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.
Android Support Library Custom View (UI Component)
a module to implement custom views. Part of the Android Support Library.
Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
Androidx Graphics (Utility)
leverages graphics facilities across multiple Android platform releases.
AndroidX Inspection (Utility)
Interpolator (UI Component)
AndroidX library to use animation interpolators on older platforms.
Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
Androidx Navigation Event (UI Component)
provides APIs to easily intercept platform navigation events, including swipes and clicks, to provide a consistent API surface for handling these events.
ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
Android Activity Saved State (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
Tracing (Utility)
AndroidX library to write trace events to the system trace buffer.
Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
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.
Kotlin (Utility)
The Kotlin Programming Language
kotlinx.coroutines (Utility)
library support for Kotlin coroutines.
Kotlin serialization (Utility)
Kotlin cross-platform / multi-format serialization.
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.

Payment Modules:

None found
an artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.

Ads & Analytics:

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an artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.

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