I downloaded this onto my 5th generation iPad which runs IOS 12.4.1 and found that it worked very well, with both small molecules and large proteins. The ads did not get in the way, and I was able to download pdb files from the RSCB protein database. What was really good was that I could email pdb files to myself, then open the email and copy the attachments to the app and visualise them with no problem. This is great, because it means you can view files you (or your colleagues) have created yourselves, so you are not limited to structures in the public domain. The app is basically a viewer, so it just enables you to look at the structures and rotate them with your finger, but that is still impressive. A wider range of display modes would be nice, rather than just ball-and-stick and space-filling, but it is still brilliant, and a great thing to have on one's tablet. Roger
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Franklyn Bain
Matt Starr
牛若觉