# iMolecular Builder — user reviews > 29 indexed App Store user reviews of iMolecular Builder by song hyunsub, rated 5.00/5 from 2 ratings. - Source: https://appshunter.io/ios/app/imolecular-builder/id299032255/reviews - App overview in markdown: https://appshunter.io/ios/app/imolecular-builder/id299032255.md - Rating breakdown: 5★ 2 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0 ## Newest reviews (9 of 29) ### 4/5 — Imolebuilder *2009-09-29* This is really good, once you discover that drawing molecules is a simple matter of touching the screen or the bond. Great that you can download optimized structures from your desktop that you have created in Chemsketch etc. ### 4/5 — Could be excellent *2009-08-07* Well done great interface and excellent application. Really shows potential! Please bring back optimization without it this app is useless and make this app excellent. ### 4/5 — Super tool *2009-05-19* I love this app!!! If I am at a lecture in the lab, wherever, I can quick create a structure while I am thinking about it and analyze it later with my gaussian program. I can use the server link fine but I would love to have instructions on the crystal and CNT builder. Bringing back the optimizer would also be super!!! Thank you for taking the time to make this super app ### 4/5 — Optimize option please *2009-05-16* Very well done app, however, as one other reviewer mentioned, please bring back the optimization functionality as without it this app is next to useless for creating your own molecules. I understand you may have removed it as it was not perfect (optimization algorithms can be complex and tricky and not work in all situations) but something is better than nothing. Especially if you have the basic interactions for the common atoms mostly accurate. (Plus it needs more than one page of help, including for the other build modes such as crystal.) Additionally, when you enter parameters in places such as CNT builder, please remember them for next time you enter CNT builder. Don't keep going back to the same original default values. I like all my CNT as short (6,0), not long (10,10). And please add an option to build a CNT and add it to the current molecule, rather than replacing it, so we can form more complex molecules by joining CNTs. ### 3/5 — Great, but.. *2009-05-04* would be a TON more useful if it had some sort of auto-optimization! ### 4/5 — Great, but needs fine-tuning *2009-03-31* iMole has easily become my favorite applications for a variety of reasons, from the visual glamour to the ability to structure your molecule's bond length to the nearest thousandth (or less even) of an Å. My favorite tool of course is the auto-optimization tool which structures a compound to its best conformation, saving me loads if time (user beware though it doesn't take preferred R and S enantiomers) However I would love to see some instructions for some of the trickier parts of this application, such as crystalline structures, and it ABSOLUTELY needs a guide to downloading molecules off the Internet (for those of us less Internet savvy). I'd also adore other potential features in this application, such as electrostatic potential mapping (if it has it I haven't been able to find it) Over all though this is a must have for anyone with interest in molecules, or even the acerage organic chem student who want's to save $40 on a molecule building kit for something that gives them so much more! ### 4/5 — Help *2009-03-29* I don't understand how to download the molecules off the Internet, it is too difficult.please add instructions,also,it would be nice if we could create our own crystals instead of the same one;however,other then this it is a very good app and it helps a lot. This app needs a few updates and it's up to 5 stars. ### 3/5 — need directions *2009-02-19* This is really cool. but i havent figured out how to upload any new molecules and i cant find a user guide or anything. im pretty lost but im playing around with the samples a lot. ### 4/5 — Very Interesting *2009-02-03, version 0* This would have got five stars, however I noticed a mistake in their periodic table. Ma instead of Mg (magnesium!). In the future features list, it would be nice if there was a real easy way of getting molecules drawn on a computer onto the iPhone, without fiddling around with FTP. However as a chemistry undergraduate, I am finding this app to be interesting and challenging. If you have been waiting to draw molecules on your iPhone this might be for you (if you have the time and patience to learn the software). ## Most critical reviews (10 lowest-rated) ### 1/5 — Too hard to view your own files *2012-02-22, version 1.7.0* The only way to get your files on there is to use a FTP server, which is dumb. Until the developer implements a SIMPLE DRAG AND DROP feature from iTunes to get your own files on your phone, this is worthless. ### 1/5 — No more "find configuration" *2011-10-07, version 1.5.0* there was a time where this app did have automatic aligning tools for showing theoretical configuration but now this features seems gone... Paid 5 bucks for nothing ### 1/5 — Worthless for Mac users *2009-07-22* The companies website is in Korean, if you are on a Mac good luck downloading molecule information; I bought this app and I'm stuck with sample molecules, I'm in O-Chem right now and I don't have time to build the molecules while in lecture. ### 1/5 — Was great, but now worthless *2009-06-26* With the prevously available auto-optimization feature this was a GREAT app. Now with no auto-optimization this app is nearly worthless. I would not buy this app until they bring back the auto-optimization feature. ### 2/5 — Hmm... *2010-02-25, version 0* I really wish it could tell you the chemical formula ( or if it doesn't have one, gives the option to change it to one that extremly simmilar) And if it has one a chemical name It's just cos at the moment I'm just sticking atoms together not knowing what I'm making, this angers me, because I bought this as sorta an edjacational thing. ### 2/5 — Not user friendly *2009-02-24* No idea how to work this program. It seems very interesting but needs to be user friendly. ### 2/5 — Could be better *2009-02-21, version 0* Does not calculate bond angles and lengths by inself ### 3/5 — Documentation *2012-11-19* I feel that this is an excellent program for the organic chemist. However, I am still trying to figure out how to use the program. For example, when "drawing" a molecule how do I adjust the bond angles? There seems to be NO documentation about the workings of this program, as it doesn't seem to be intuitive. I have a lot of questions on how to perform certain actions in the program. A Google search led me to a Chinese site with no info whatsoever. Some online documentation would be very helpful. It seems like an awesome program, but hard to understand. ### 3/5 — Good job just needs an update *2010-01-30, version 0* Great but mabye add drag and drop atom control and the ability to stretch bond length manually ### 3/5 — Auto-Optimazation PLEASE!!!!! *2009-10-07* I miss it so. ## Most praised reviews (10 highest-rated) ### 5/5 — Hidden treasure *2013-07-26* There are many hidden treasure buried in thousands of apps in iTunes Store. This is definitely one of top hidden gem. There are a lot of people like me use this app everyday for chem related materials. Everyone speak up. Keep the good updates coming. ### 5/5 — amazing *2009-04-18* even if you are not useing this application for scientific purposes it is extreemly fun to play with. ### 5/5 — Cool *2009-03-13* Has great stuff ### 5/5 — Best app in the world *2009-02-21, version 0* The best app! But I know you people "Why is it £7.49" But it's worth every single penny. :) - turn right 90 degrees. ### 5/5 — Wee *2009-02-13* I have no idea what I'm doing with this stuff but it's still fun to look at and it's so cool! ### 5/5 — Deezy *2009-02-07* Incredibly handy for this Organic Chemist! This app gives you the ability to view molecues in 3-D, you can also construct and edit various compounds that are samples or that you have made on your own computer. The app will not align the compound to have the best steriochemsitry. I had trouble using the ftp server and emailed the creater about it and he implemented the "Download from Web" feature, within days upon my request. Great support and great app! You have earned a fan! ### 5/5 — A very powerful tool *2008-12-10* This application is loaded with features for constructing and viewing molecules. As the author of a "competing" application, Molecules, I can say that this one has many features that I will most likely never implement in my own program. The carbon nanotube and crystal structure generation alone could make it very interesting to a few classes of users. If you are a chemist, materials scientist, or even student, I think you'll get your money's worth out of this application. ### 4/5 — Stop changing my molecule! *2012-10-05, version 3.1.0* I'd give this app 5 stars if it didn't change the look of my molecule every time after I save it! ### 4/5 — Be better *2012-08-17* Does the software automatically adjusts the atomic distance?? Because I do it the atomic model shape is very strange, some computer software have this function. I hope I spend money to buy this software allow me to get the quality. Finally, I look forward to this software to support Chinese. ### 4/5 — Finally!!! *2012-02-29* They brought back the auto-optimization. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*