2.5
2021-04-23
Update for iOS 14
• Announce “U.S. Patent No. 10,424,399” in About Box
• Enhance display of Documents View
• Fix Tool View and Documents View for large iPads
• Epimerization gesture changed to two-finger swipe
• Updated sample molecules
• Request Letter-sized paper source for printing
• Other bug fixes and performance enhancements
2.1
2017-11-20
This app has been updated by Apple to display the Apple Watch app icon.
• Update for iOS 11
• Add rotate clockwise / counter clockwise with calculated angle
• Support the import of a nitrogen atom with two or three bonds a formal charge
• Change multiple charge display from “+2” to “2+”
• Improved ring double bond drawing
• Fix bug preventing the use of bottom row of Groups
• Fix bug saving drawing images to the Cameral Roll
• Other bug fixes and performance enhancements
2.0
2017-01-02
• Update for iOS 10
• Add elements Nihonium, Moscovium, Tesserine, Oganesson
• Copy and paste between Chirys Draw and Asteris
• Include Print Preview in print panel
• Improved ring double bond drawing
• New Chirys Draw app icon
• Other bug fixes and performance enhancements
1.80
2015-08-05
• Updated for iOS8 (best with iOS8!)
• Added 64-bit architecture
• Replace Group wheel with Groups and Template panel
• Export RXN/RD files
• Add Press and Drag gesture to draw chains
• Add image parameters panel for image resolution, transparent background
• Permit +1 charge on N2 groups
1.70
2014-08-07
Updated user interface for iOS7
Add sulfoxide support, using either double bond, or separated charges
Add multiple ring creation with one gesture if atoms are selected
Permit scaling with selected atoms and bonds
Add wavy bonds if Single bond tapped a second time
Allow gem-dimethyl creation with a bond selected
Add triple tap gesture to Add Text
1.5.3
2013-09-14
• Changing a single atom to halide atoms, Li, Na, K, Ca, or Mg creates the appropriate ion
• Inadvertent touches of the display surface no longer creates chain
• Improve distinction between checkmark (gem-dimethyl) gesture and swipe (create chain) gesture
• RGroup is annotated in the molecular formula
• Added “L” group for ligand
• Plus signs are added when more than one product is associated with a reaction
• Imports a molecule with RNH3(+) group charged properly
1.5.2
2013-04-15
Version 1.5.2
Read Greek letters in MOL/SDF files
Retro-synthetic arrows created in the swipe direction
Add correct number of hydrogens to imported RNH3(+) group
Minor bug fixes, performance enhancements
Version 1.5:
Create multi-line text annotations
Copy PDF (scalable graphics) to Pasteboard
Copy image to Camera Roll
Export PDF (scalable graphics) to email
Image files cropped to molecules
Control annotation text font face, color, and size
Create chains in additional directions
Generate single atoms
Create ion-pairs
Fuse separate rings
Calculate exact mass
Exchange drawings by Chirys exchange file format
Create User-Defined Groups
Epimerize chiral centers with two finger swipe down
Display charges greater than +/-1 (e.g., 2+)
Create reaction arrow in direction of swipe
1.51
2013-01-07
Create multi-line text annotations
Copy PDF (scalable graphics) to Pasteboard
Copy image to Camera Roll
Export PDF (scalable graphics) to email
Image files cropped to molecules
Control annotation text font face, color, and size
Create chains in additional directions
Generate single atoms
Create ion-pairs
Fuse separate rings
Calculate exact mass
Exchange drawings by Chirys exchange file format
Create User-Defined Groups
Epimerize chiral centers with two finger swipe down
Display charges greater than +/-1 (e.g., 2+)
Create reaction arrow in direction of swipe
1.5
2012-12-21
Create multi-line text annotations
Copy PDF (scalable graphics) to Pasteboard
Copy image to Camera Roll
Export PDF (scalable graphics) to email
Image files cropped to molecules
Control annotation text font face, color, and size
Create chains in additional directions
Generate single atoms
Create ion-pairs
Fuse separate rings
Calculate exact mass
Exchange drawings by Chirys exchange file format
Create User-Defined Groups
Epimerize chiral centers with two finger swipe down
Display charges greater than +/-1 (e.g., 2+)
Create reaction arrow in direction of swipe
1.1
2012-03-24
This update enhances gestures, improves scientific accuracy, and fixes bugs.
• Tweet a molecule (for iOS 5 or later)
• High resolution images for Retina display
• Added resonance type reaction arrow
• Improved ring fusion with overlapping atom elimination
• Changed bond pivot to work in Draw mode (two finger swipe)
• Print now includes element colors if turned on
• Groups are expanded on MOL/SD file export
• Removed memory warnings, improved memory usage
• Groups can be expanded from Molecule compose panel
• Duplicate also copies Annotations and Reactions
• Coordinates from imported molecule are scaled properly
• Edit Text on popup menu
• Ring perception used on molecule import
• Improved placement for formal charge
• Added Cbz carboxybenzyl protecting group
• Improve formula detector
1.0.1
2011-11-15
This update enhances gestures, improves scientific accuracy, and fixes bugs.
• Tapping Thick Bond button creates a bond as well as changes to thick.
• Fix Scaling so that it doesn’t jump to default scaling.
• Allowed gem-dimethyl for elements other than carbon.
• Add two-finger double tap to change to Move Mode.
• Adding RGroups doesn’t lose bond order or wedge type.
• Fixed molecular formulas starting with single character element.
• Add Groups for: NHAc, PPh3, PO(OMe)2, OMOM, OTES, OEE
• Fix rotation of reaction arrows so that 180 degree rotation is easier.
• Add Equilibrium reaction arrow type. Create with three finger swipe to the right.
• Add Help screen.
• Bond/molecule flip now retains correct chirality for moving atoms.
• Wedge up and down buttons now sprout on more than one selected atom.
• Hydrogen atoms attached to carbon atoms are stripped on reading MOL/SD file.
• Improved geometry of some carbon sprout angles and chain extensions.
• Paste sets Move Mode, like Duplicate.
• Improve sprout vectors for creating a gem-dimethyl at a terminal atom
• Select atoms and bonds created using the gem-dimethyl.
• Make gem-dimethyl gesture easier to detect.
• Add full periodic table.
• Alphabetize molecular formula and elemental composition after C, H.
• Paste centers molecule if only one, offsets molecules if more than one.
• Fix MOL file reader when making bonds to more than one RGroup.