Mountain View , California ( CNN ) -- Meet Evernote CEO Phil Libin , who runs a software company based here in Silicon Valley that has been on a hot streak . Last month , the company launched an iPhone application , called Evernote Food , that lets users keep track of favorite recipes and restaurants . It was an instant hit . Evernote also released an iPad app , called Skitch , for drawing and annotating on images . It has skyrocketed from 200,000 to 5 million users since Evernote acquired the startup behind the technology in August . All of Evernote 's apps tie into its online note-taking and file-storage service . It has 21 million users , of which nearly a million pay for access to more storage space and capabilities , Libin said . The company 's major growth left executives scurrying for a place to fit all of its new employees . They will move into a much larger headquarters in nearby Redwood City , California , in the next few months , Libin said . `` We want to be the Zynga of getting stuff done , '' Libin told CNN , referring to the maker of such hit social-network games as `` FarmVille '' and `` Words with Friends . '' `` I think that 's really what we 're becoming . '' Despite the successes , Evernote 's most ambitious recent project has n't immediately taken off . Evernote Hello , a quirky iPhone app for exchanging contact information that launched at the same time as the Food app , has not gotten off to a terrific start . It 's billed as a replacement for business cards and address books , asking users to hand their phones over to strangers who then input their e-mail addresses and phone numbers and snap head shots to help them pair a face with the name . CNET , the CBS-owned technology website , covered it under the headline , `` Evernote Hello shares cooties and contacts . '' Another tech blog , ReadWriteWeb , called it `` an app only Sheldon Cooper would love , '' a reference to the fictional nerd from the CBS show `` The Big Bang Theory . '' Libin , who does bear some resemblance to the TV character played by actor Jim Parsons , said Evernote is making changes in response to user feedback . For example , the app should allow users to snap a picture of a business card using the iPhone 's camera and automatically input the information from it -- like LinkedIn 's CardMunch , Libin said . It may also let two people who have the app running exchange contact info wirelessly in a process similar to the Bump app , he said . Users will also have the option of inputting the data themselves manually , rather than handing the phone over to a new acquaintance , Libin said . However , he defended his original concept , saying that people take better pictures of themselves when they are controlling the camera . `` Your photo booth instincts kick in , '' Libin said . `` You just get better photos . But whatever . '' During an interview at Evernote 's headquarters last week , I handed Libin my phone and asked him to input his contact information into the Hello app . He winced and observed that the app has already advanced so far beyond the publicly available version I was using that it was barely recognizable to him . Libin describes the alphabetical organization of most contact lists as outdated , a remnant from when people 's names and numbers were printed on linear pages . Perhaps the last mainstream innovation in address books came in 2007 when Apple introduced a favorites list to the iPhone . Evernote Hello shows contacts in a mosaic of people 's faces . `` Your brain does n't remember things alphabetically , '' Libin said . A new version of Evernote Hello will be available in the next few weeks , Libin said . It should bring the product closer to Libin 's original concept of supplanting the address book by giving it a 21st-century update and merging it with your calendar . `` It 's sort of as if your address book , your calendar and your camera had a love child , '' Libin said . Part of the inspiration for Evernote Hello came from Libin 's own inability to remember people by name , he said . Still , the app has a long way to go . As Libin tweaks his pet project , Evernote developers are working on at least two more apps to be released this year . One is for keeping a to-do list , and another is for organizing travel tips , Libin said . `` Hello is really ambitious , and it 's going to take us a long time to get it right , '' Libin said . `` But it 's the one I think has the most potential to change things . ''
Evernote 's CEO sees his new app as a replacement for address books . Comment: Other apps from the company , like Food and Skitch , are more popular .