MobiSystems

MobiSystems, also known as Mobile Systems Ltd., is a privately held Bulgarian software development company founded in Sofia in 2001. It develops productivity and reference applications for Android, iOS, Microsoft Windows, and Mac, with an emphasis on software that extends familiar office, document, storage, and language tools across mobile and desktop devices. Its principal product families include MobiOffice, MobiPDF, MobiDrive, File Commander, and Oxford Dictionary applications developed under licensing arrangements with Oxford University Press. The company began as a mobile-software developer during the period when personal digital assistants and early mobile operating systems were important distribution platforms. Stanislav Minchev and Dimitar Mitev founded the business, and Nikolay Kussovski and Stoyan Gogov joined as founding members in 2003. That year, MobiSystems opened an office in San Diego and entered into a licensing agreement with Oxford University Press to create dictionary applications using Oxford language content. The relationship helped establish a reference-software business alongside the company’s productivity products. MobiSystems released the first version of its OfficeSuite office package in 2004 for Palm OS and followed it with a Symbian version in 2005. OfficeSuite later became the company’s best-known product family. In 2009, MobiSystems agreed with Sony to develop Android versions of OfficeSuite and File Commander and to preload those applications on Sony Xperia smartphones and tablets. The arrangement provided distribution through device partnerships as well as ordinary app-store channels. OfficeSuite reached iOS in 2013 and Windows in 2016, broadening the product from a mobile office utility into a cross-platform productivity suite. The company’s current portfolio is organized around complementary document workflows. MobiOffice combines MobiDocs for word processing, MobiSheets for spreadsheets, and MobiSlides for presentations. MobiPDF provides PDF reading, editing, conversion, and related document functions. MobiDrive supplies cloud storage and synchronization, while File Commander provides file-management capabilities, primarily on Android. The Oxford Dictionary application portfolio includes monolingual and bilingual dictionaries based on licensed Oxford University Press content. According to published company information summarized in the Wikipedia article, MobiSystems products have been installed more than 300 million times in 195 countries; this figure describes cumulative installations rather than a disclosed active-user count. MobiSystems has received recognition in both international app ecosystems and Bulgaria’s information-technology sector. OfficeSuite was selected for Google Play’s Android Excellence program in 2018 and received a Best Mobile App of 2019 award from the Best Mobile App Awards. The company and its products have also received Bulgarian Association of Information Technologies awards, including recognition for the Oxford Dictionary application and OfficeSuite, as well as an award concerning the company’s contribution to the international profile of Bulgaria’s ICT industry. Beyond commercial software, the company has reported educational and charitable initiatives. From 2015, it offered programming courses for secondary-school students in Sofia. During the COVID-19 emergency in 2020, it participated in Italy’s Digital Solidarity initiative by providing licenses for OfficeSuite and PDF Extra and cloud storage through MobiDrive. It also donated BGN 100,000 to Aleksandrovska University Hospital in Sofia for ventilators and medical supplies. In 2023, MobiSystems joined unconnected.org, an organization focused on expanding internet access for students, refugees, women, and underserved communities. The company remains active as a privately held software business, although detailed current ownership, executive, revenue, and headquarters-address information is not established in the supplied reference material.

MobiSystems was founded in Sofia, Bulgaria, in 2001 by Stanislav Minchev and Dimitar Mitev. Its early development took place during a period when Palm OS, Symbian, and other mobile platforms were important channels for business and reference software. In 2003, Nikolay Kussovski and Stoyan Gogov joined as founding members, and the company opened an office in San Diego, giving it an early operational presence in both Bulgaria and the United States. The company also began building a language-reference business in 2003 through a licensing agreement with Oxford University Press. Under that arrangement, MobiSystems developed dictionary applications using Oxford content. This partnership provided a foundation for a portfolio of monolingual and bilingual dictionary products alongside the company’s own productivity software. MobiSystems’ first major office-productivity release was OfficeSuite, introduced in 2004 for Palm OS. A Symbian edition followed in 2005. These releases established the company’s focus on delivering document, spreadsheet, and presentation functions on mobile devices. In 2009, MobiSystems entered a significant device-distribution relationship with Sony. It developed Android versions of OfficeSuite and File Commander and arranged for them to be preloaded on Sony’s Xperia smartphones and tablets. The partnership increased the visibility of the applications beyond direct downloads. OfficeSuite expanded to Apple’s mobile platform in 2013 with the release of an iOS version. In 2016, MobiSystems introduced OfficeSuite for Microsoft Windows, representing its move from mobile-only productivity toward a broader cross-platform offering. The office suite later evolved into the MobiOffice family, consisting of MobiDocs, MobiSheets, and MobiSlides. The company also broadened its document ecosystem with MobiPDF, a PDF reader, editor, and converter, and MobiDrive, a cloud-storage and synchronization service. File Commander continued as a file-management application, principally for Android. MobiSystems’ products have received recognition from technology and industry organizations. In 2014, Inc. magazine listed the company among its 5,000 fastest-growing companies in America. OfficeSuite was selected for Google Play’s Android Excellence program in 2018 and received a Best Mobile App of 2019 award. The Bulgarian Association of Information Technologies recognized MobiSystems and its products through several BAIT Awards. In 2016, the Oxford Dictionary application received a mobile-application award. In 2018, the company received recognition for contributing to the international image of Bulgaria’s ICT industry, while OfficeSuite was recognized as a successful Bulgarian ICT product. The company has also pursued education and public-interest initiatives. Beginning in 2015, it offered free courses in competitive programming, applied programming, and mobile-application programming to students in grades 5 through 12 at Sofia’s First Private Mathematical High School. In 2020, during the COVID-19 pandemic, MobiSystems participated in Italy’s Digital Solidarity initiative by contributing licenses for OfficeSuite and PDF Extra and cloud-storage access through MobiDrive. It separately donated BGN 100,000 to Aleksandrovska University Hospital in Sofia for ventilators and medical supplies. In 2023, it joined unconnected.org, supporting efforts to expand internet access to underserved groups. A 2016 accessibility controversy concerned the MobiSystems-developed American Heritage Dictionary application. Visually impaired users criticized the app for not providing VoiceOver accessibility options. The issue is documented as a product-accessibility criticism rather than a reported legal or regulatory finding. MobiSystems remains a privately held Bulgarian software company with a portfolio spanning productivity, PDF, cloud, file-management, and licensed dictionary applications. Publicly supplied sources do not establish current executive appointments, ownership details, revenue, or a precise present-day headquarters address.

• 2023

  Joined unconnected.org

  [1]MobiSystemsen.wikipedia.org

  MobiSystems joined an organization working to expand internet access for underserved communities.

• 2020

  COVID-19 support initiatives

  [1]MobiSystemsen.wikipedia.org

  The company contributed software licenses and cloud storage to Italy’s Digital Solidarity program and donated BGN 100,000 to Aleksandrovska University Hospital.

• 2018

  OfficeSuite recognized by Google Play

  [1]MobiSystemsen.wikipedia.org

  OfficeSuite was selected as an Android Excellence app.

• 2016

  Windows desktop debut

  [1]MobiSystemsen.wikipedia.org

  MobiSystems released OfficeSuite for Microsoft Windows.

• 2013

  OfficeSuite launches for iOS

  [1]MobiSystemsen.wikipedia.org

  The office suite became available on Apple mobile devices.

• 2009

  Sony Xperia distribution partnership

  [1]MobiSystemsen.wikipedia.org

  Android versions of OfficeSuite and File Commander were developed for Sony and preloaded on Xperia devices.

• 2005

  OfficeSuite expands to Symbian

  [1]MobiSystemsen.wikipedia.org

  MobiSystems released a Symbian version of OfficeSuite.

• 2004

  First OfficeSuite release

  [1]MobiSystemsen.wikipedia.org

  OfficeSuite launched for Palm OS.

• 2003

  San Diego office and Oxford licensing agreement

  [1]MobiSystemsen.wikipedia.org

  Nikolay Kussovski and Stoyan Gogov joined as founding members; the company opened a San Diego office and licensed Oxford University Press content for dictionary applications.

• 2001

  Company founded in Sofia

  [1]MobiSystemsen.wikipedia.org

  Stanislav Minchev and Dimitar Mitev founded MobiSystems in Sofia, Bulgaria.

A cross-platform productivity and reference-software provider serving mobile and desktop users, positioned around practical document creation, PDF handling, cloud storage, file management, and licensed language content.

• Office productivity suite · 2004

  MobiOffice

  MobiOffice is MobiSystems’ cross-platform office suite for Android, iOS, Microsoft Windows, and Mac. Its main components are MobiDocs, a word processor; MobiSheets, a spreadsheet editor; and MobiSlides, a presentation application. The product descends from OfficeSuite, which began on Palm OS and later expanded to Symbian, Android, iOS, and Windows. Company-reported cumulative installations for the broader OfficeSuite product family exceed 300 million.

• PDF software

  MobiPDF

  MobiPDF is a PDF reader, editor, and converter available for Android, iOS, and Microsoft Windows. It extends the company’s productivity portfolio from document creation into PDF-based reading and document workflows.

• Dictionary and reference software · 2003

  Oxford Dictionary

  Oxford Dictionary is a family of mobile dictionary applications developed by MobiSystems under license from Oxford University Press. The portfolio includes monolingual British and American English dictionaries and bilingual dictionaries. The monolingual editions also include thesaurus functionality. Exact availability can vary by edition and platform.

• Cloud storage

  MobiDrive

  MobiDrive is MobiSystems’ cloud-storage service for Android, iOS, and Microsoft Windows. It supports the company’s broader document ecosystem by providing a place to store and access files across supported devices.

• File-management software

  File Commander

  File Commander is a file-management application available for Android. It gained additional distribution through MobiSystems’ 2009 arrangement with Sony, under which the app was preloaded on Xperia smartphones and tablets.

• 2023Digital inclusion partnership with unconnected.org

  International

  MobiSystems became a member of unconnected.org, a charity organization focused on internet access for students, refugees, women, and underserved communities.

  Outcome. The supplied reference confirms membership but does not describe specific projects or measurable results.

  Source
• 2020Digital Solidarity support

  Italy

  MobiSystems participated in Italy’s Digital Solidarity initiative during the COVID-19 emergency by donating licenses for OfficeSuite and PDF Extra and providing MobiDrive cloud storage.

  Outcome. The contribution was intended to help businesses and users maintain digital operations during the health emergency; the supplied material does not provide usage figures.

  Source
• 2015Free programming courses

  Bulgaria

  MobiSystems began offering free courses in competitive programming, applied programming, and mobile-application programming for students in grades 5 through 12 at First Private Mathematical High School in Sofia.

  Outcome. The initiative supported programming education for secondary-school students; the supplied material does not quantify participation or longer-term outcomes.

  Source

• 2016

  Launch OfficeSuite for WindowsProduct launch

  Background

  The company was moving its established mobile office product toward desktop computing.

  Action taken

  MobiSystems released a version of OfficeSuite for Microsoft Windows.

  Aftermath

  The launch marked MobiSystems’ entry into computer software and strengthened its cross-platform productivity positioning.

  Source

• 2013

  Extend OfficeSuite to iOSProduct launch

  Background

  MobiSystems had established OfficeSuite on earlier mobile platforms and was broadening its supported ecosystem.

  Action taken

  The company released the first iOS version of OfficeSuite.

  Aftermath

  OfficeSuite became available to users of Apple mobile devices, supporting the product’s cross-platform expansion.

  Source

• 2009

  Pursue device preinstallation through SonyStrategy

  Background

  Android was becoming an important mobile-software platform and device distribution channel.

  Action taken

  MobiSystems developed Android editions of OfficeSuite and File Commander for Sony and arranged their preload on Xperia devices.

  Aftermath

  The arrangement gave the applications distribution through Sony smartphones and tablets in addition to direct app downloads.

  Source

• 2003

  Enter licensed dictionary applicationsStrategy

  Background

  MobiSystems was expanding its mobile-software portfolio beyond office utilities.

  Action taken

  The company reached a licensing agreement with Oxford University Press to develop dictionary applications using Oxford language content.

  Aftermath

  The agreement established a continuing reference-software product line alongside MobiSystems’ productivity applications.

  Source

1. 1MobiSystemsen.wikipedia.org