Reviews of X-Prolog

By: xprolog

List of user reviews and ratings for X-Prolog

Total ratings

3.13 (Rating count: 127)

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Review summary

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.

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User Reviews

Recent rating average: 2.70

All time rating average: 3.13

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30% (6)

Date	Author	Comment
2024-05-05	Ka*****	Nice Prolog compiler
Nice Prolog compiler
2024-04-18	fr*****	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.
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.
2024-01-16	Al*****	It is not possible to access files to open or create a new file
It is not possible to access files to open or create a new file
2023-12-28	Th*****	Can't open or create files. Option to enable file access is always unselectable even if enabled externally in app settings.
Can't open or create files. Option to enable file access is always unselectable even if enabled externally in app settings.
2023-06-21	Si*****	Installed and given files and media access permissions. When I go to create a new file it just takes me to the Androud permissions page. No guidance in the documentation. Waste of time.
Installed and given files and media access permissions. When I go to create a new file it just takes me to the Androud permissions page. No guidance in the documentation. Waste of time.
2022-10-25	Da*****	Really impressive app - highly recommend if you want to try Prolog! It not only includes an interactive terminal, but also allows for graphical output such as chessboards and conway's game of life (both included as examples). If new to Prolog, you'll want to pair this with one of many great online tutorials.
Really impressive app - highly recommend if you want to try Prolog! It not only includes an interactive terminal, but also allows for graphical output such as chessboards and conway's game of life (both included as examples). If new to Prolog, you'll want to pair this with one of many great online tutorials.
2022-06-03	No*****	Doesn't even launch. Shows black screen and crashes.
Doesn't even launch. Shows black screen and crashes.
2022-02-08	Ry*****	Flawless. I could easily download and run some example programs. Neat!
Flawless. I could easily download and run some example programs. Neat!
2022-01-20	Ad*****	Please tell me how to run an already existing .pl file . I not able to run my programs .
Please tell me how to run an already existing .pl file . I not able to run my programs .
2021-11-18	ol*****	Great app. Include listing() function which when an update is released.
Great app. Include listing() function which when an update is released.