X-Prolog

Name: X-Prolog
Rating: 3.125 (127 reviews)
Author: xprolog

By: xprolog

X-Prolog is a lightweight Prolog system.

Features & Capabilities

X-Prolog is a lightweight Prolog system designed specifically for Android devices. It enables users to write, build, and run Prolog programs directly on their mobile devices through text views, web views, or as services to client apps. The extension supports interaction via customizable Prolog-based tools, facilitating editing, building, and source reconciliation through defined extension points such as build, edit, and reconcile.

Developers can quickly compile Prolog source files into runnable objects and export or execute them within the app environment. While optimized for mobile, X-Prolog supports advanced tooling via context terms that determine how tools participate in the development workflow. Note that installation details depend on Android version due to file access restrictions. X-Prolog represents an efficient and extensible way to program in Prolog on Android platforms, though some known limitations like occurs check and logical update view exist.

User Growth & Download Statistics

App Education Developer Tools Programming

By:

xprolog

Downloads:

24,345 4

Rating:

3.13

(127)

Version:

1.0.63 Last updated: 2022-11-21

Creation date:

2017-06-04

Publisher country:

Email:

in*****@gmail.com

URLs:

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-09

Compare stats and ranking:

Ranking

# 389,694 ▼ 1,611

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

xprolog

Google Play Store

https://play.google.com/store/apps/details?id=org.xprolog.xp

Email:

in*****@gmail.com

User Reviews

X-Prolog is praised for providing a portable Prolog environment on Android with interactive and graphical capabilities, suitable for learning and experimentation. However, multiple users report critical issues with file access permissions that prevent opening or creating files, lacking documentation to guide usage, and occasional app crashes. While appreciated for its concept and example programs, the app needs improvements in permissions handling, user interface, and documentation to enhance usability and support more serious development.

Pros

Provides a fully functional Prolog environment on Android for testing and learning Prolog programming on the go.
Includes both an interactive terminal and graphical output capabilities with example programs like chessboards and Conway's Game of Life.
Easy to download and run example programs with no major issues reported on stability in many cases.
Helpful for users new to Prolog to try ideas and practice with a portable setup.
Users appreciate the app's existence and encourage developers to continue improving it.

Cons

File access permissions are broken or unmanageable, preventing users from creating or opening Prolog files within the app.
Lack of clear documentation or guidance on how to run existing .pl files or consult knowledge bases makes usage difficult for new users.
User interface issues such as confusing flow when trying to create files, and inability to enable file permissions internally.
Some users experience crashes or the app not launching properly, showing a black screen.
The app is not suitable for serious program development due to usability and feature limitations.

Recent reviews

Nice Prolog compiler

Ka*****, 2024-05-05

I installed this app on bothAndroid 12 and Android 13 phones. The permission settings for this app are broken somehow. Both my phones refuse to allow me to grant permissions to the app to access test files so that I can create program files to run my own prolog programs. Please fix the permissions for this app.