
Roy Campbell
Had this on my phone for years, and use it occasionally. Opened it today to find an advert bar at the top of the screen that cannot be removed, and another bar at the bottom of the screen that prevents access to keys including the 'equals' key. App now completely unusable and about to be uninstalled!
Appsbuyout Dev
April 26, 2026
Dear Royβ,
Thank you for your review. The use of advertising enables us to keep this app free and to update it regularly. However, we are always working on improving our app. Please keep an eye out for future updates.
Many thanks,
β
Casper

Ben Kirimlidis
this app was quite literally my used app on previous phones. used it for work, world building, analysis and astrophysical calculations. all the fun things! however, on my new phone the only available version is the one free one with ads. and the ads are terrible. cannot and will not use use it. however if there were a paid version, I would happily pay a few euro to have this ad free. I understand the developers want to make some money off of it but the ads as they are are just too much.
Appsbuyout Dev
November 26, 2025
Dear Benβ,
Thank you for your feedback.
We really appreciate taking your time to let us know, how you feel about the app. It will be passed on to our development team, who will take it into consideration.
Please stay tuned and have a great day.
Casper

Sherocha Fernando
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I was a longtime user, but the latest version just ruined the app for me. The giant ads would be more bearable if they weren't super awkward ads for condoms or whatever (idk they're in German). In addition to this they had to go and mess up the cursor. The regular vertical cursor is invisible now, and the app just underlines a big chunk of the expression. Good luck guessing the exact position. The Caller ID feature that's been here for a long time was also another thing that's always bugged me.
31 people found this review helpful