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CompareOpen in Google Play
pretty good simulator wish I could add more rungs and inputs. but very good for free
Developer reply
Thank you for your appreciative review and 5 stars. David
Great app for someone who wants to start learning ladder programming
Developer reply
Thank you for taking time to write a good review and 5 stars. It really is one of the easiest apps available to learn how to program in ladder logic. David
I am using version 7.3 When I make a mistake while creating a program, my hand instinctively goes to the back button; the moment I press it, the app exits immediately, and the work is lost when I reopen it—wasting all my effort. I would like a confirmation showing (Yes/No) to appear before the app exits when the back button is pressed.
Developer reply
UPDATED 9/23.2026 As of September 23, a new version 8.0 is available and the BACK button "<" the app will ask "Do you want to save your program?". Version 8.0 also includes: - Code to run "Bottling Plant" animation, - New Timer Off Delay with "Timing" bit TT., - Updated animations. - More friendly Compare blocks. David davidwhiteapps@gmail.com
At first, I gave you three stars, but after the response and finding out the issue was from my end, I would have loved to give this app more than five stars as an Android app
Developer reply
Thank you for trying the app, giving it 5 stars and a great review. I am so happy that you mentioned your issue in the first review and emailed me a video of your working PLC program. That made it easy on my end to help you resolve the issue. David
Best app, thank you so much David.
Developer reply
Thank you for your awesome review and 5 stars. David
This app is extremely good! It is exactly what I was looking for. I never expected to find the Plan of Salvation in a PLC application, and for that, I give you another 100%! I absolutely loved the way you are using your work as an opportunity to reach more lives for Christ. What an amazing strategy! May God continue to bless you greatly. Thank you so much for sharing your work with all of us. God bless you! 🙏
Developer reply
Thank you for expressing your joy and 5 stars for this app. It is truly only by God's Grace, Mercy, Love and Power that I am alive and that this app was made possible. It took a very complicated algorithm to convert the graphic ladder logic symbols into a mathematical expression to control the simulator outputs and I was not smart enough.
it is very useful for beginners to learn plc
Developer reply
Thank you for your very positive review and 5 stars. The app is designed especially for beginners to learn and have fun with programming ladder logic to control the animations. David
great for beginners like us.
Developer reply
Thank you for your very good review and 5 stars. It was especially designed to help beginners to understand PLC ladder logic. David
Exactly what I was looking for. amazing interface. I would like to thank the Developer for a great application.
Developer reply
Thank you for your awesome review and 5 stars. David
great to practice on for college classes
Developer reply
That is Great! Thank you for your review and 5 stars. David
From 67 saved reviews since 21 Feb 2023, all countries.
Share of the 3 negative reviews that mention it
“I am using version 7.3 When I make a mistake while creating a program, my hand instinctively goes to the back button; the moment I press it, the app exits im…”
Share of the 61 positive reviews that mention it
“animation of traffic crossing would be expected, but the I/O playground (without animation) layout leaves plenty of room for creativity.”
“This is the only app in the entire Play store that has NO in App purchases and NO ads.”
“I enjoyed this app!”
“The app is very easy to use and understandable which I couldn't find before on the play Store.”
“The two challenges it currently has were fun to do.”
A drop after an update usually means the update broke something.