MoleculeSketch is a simple and easy to use drawing App for chemical formulas and reactions.
It has following features:
+ add atoms and bonds nicely by position locking (can be disabled)
+ choose different double bond styles
+ add stereo bonds
+ add bonds with higher hapticity
+ type functional groups by double-clicking on symbol
+ show missing hydrogen atoms depending on free valences
+ "grow" and remove hydrogen atoms
+ show non bonding electron pairs on heteroatoms
+ change background color of drawing area and add a grid
+ copy/paste/cut molecules and drawings
+ paste drawings into other applications as pdf drawing
+ import from mol files (V2000 format)
+ use trackpad gestures for zooming and rotation
+ access drawing attributes from popover panels
+ add reaction arrows and text fields
+ calculate average mass and formula of molecules
+ group and arrange objects
- changing the default bond length in preferences now works again and prevents problems when adding ring systems (thank you for reporting this problem!)
- better support of dark mode
Ratings and Reviews
Just what I needed and so cheap
I teach o-chem at a state college. The budget does not include drawing software. This little programs has everything I need and it seems like the devoloper is very responsive to feedback. I couldn't be happier. Its not a smooth as something like chemdraw, but it has all the basics and its not even a montly fee. Thank you!
Pretty good for the price
It more or less does what you need it to do, however, I could not see any way of using fixed bond lengths and angles. So, all the drawings look a little sloppy since all the bonds lengths and angles are just eyeballed. Still, for $3, not too shabby.
When I tried it has become pain and could not add any arrow for reaction FROM MY YOSEMITE
With Family Sharing set up, up to six family members can use this app.