Readdle is a Ukrainian mobile application development company. The company research and development is based in

Odesa Odesa, also spelled Odessa, is the third most populous List of cities in Ukraine, city and List of hromadas of Ukraine, municipality in Ukraine and a major seaport and transport hub located in the south-west of the country, on the northwestern ...

, Ukraine. The operation is mostly built around the

App Store An app store, also called an app marketplace or app catalog, is a type of digital distribution platform for computer software called applications, often in a mobile context. Apps provide a specific set of functions which, by definition, do not i ...

, cumulatively generating over 100 million downloads. The company was founded by former college roommates Igor Zhadanov, Alex Tyagulsky, Andrian Budantsov, and Dmitry Protserov.

Products

Documents

Documents (previously ReaddleDocs) is a file management application. The app was Readdle's first product, and was developed because co-founders Alex Tyagulsky and Andrian Budantsov wished to be able to read books on their iPhones. It was initially released as a

Safari A safari (; originally ) is an overland journey to observe wildlife, wild animals, especially in East Africa. The so-called big five game, "Big Five" game animals of Africa – lion, African leopard, leopard, rhinoceros, African elephant, elep ...

-based web service in 2007. Later, Apple asked Readdle to submit the app (then called ReaddleDocs) to become one of the 500 apps available on the

when it launched on July 10, 2008. After

Wall Street Journal ''The Wall Street Journal'' (''WSJ''), also referred to simply as the ''Journal,'' is an American newspaper based in New York City. The newspaper provides extensive coverage of news, especially business and finance. It operates on a subscriptio ...

writer

Walt Mossberg Walter S. Mossberg (born March 27, 1947) is an American retired technology journalist and moderator. From 1991 through 2013, he was the principal technology columnist for ''The Wall Street Journal''. He also co-founded '' AllThingsD'', ''Re ...

endorsed the app, sales increased ninefold, netting the company $500–1000 a week. In 2013, the app rebranded as Documents.

PDF Expert

PDF Expert is a

PDF Portable document format (PDF), standardized as ISO 32000, is a file format developed by Adobe Inc., Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, computer hardware, ...

editing app for

iPhone The iPhone is a line of smartphones developed and marketed by Apple that run iOS, the company's own mobile operating system. The first-generation iPhone was announced by then–Apple CEO and co-founder Steve Jobs on January 9, 2007, at ...

iPad The iPad is a brand of tablet computers developed and marketed by Apple Inc., Apple that run the company's mobile operating systems iOS and later iPadOS. The IPad (1st generation), first-generation iPad was introduced on January 27, 2010. ...

and

Mac Mac or MAC may refer to: Common meanings * Mac (computer), a line of personal computers made by Apple Inc. * Mackintosh, a raincoat made of rubberized cloth * Mac, a prefix to surnames derived from Gaelic languages * McIntosh (apple), a Canadi ...

. The app allows a user to read, annotate and edit PDFs, change text and images, fill in forms and sign contracts. PDF Expert was initially launched for

iOS Ios, Io or Nio (, ; ; locally Nios, Νιός) is a Greek island in the Cyclades group in the Aegean Sea. Ios is a hilly island with cliffs down to the sea on most sides. It is situated halfway between Naxos and Santorini. It is about long an ...

in 2010 for the first iPad and is now supported on the

, and

Spark

Spark is an email application for

Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

macOS macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

, and Android devices. ''

Lifehacker ''Lifehacker'' is a weblog about life hacks and software that launched on 31 January 2005. The site was originally launched by Gawker Media and is owned by Ziff Davis. The blog posts cover a wide range of topics including Microsoft Windows, M ...

'' wrote that Spark was the best alternative for Mailbox users when that service went offline. It was released on April 2, 2019, and was Readdle's first app released on Android.

Spark +AI

In 2023, Spark introduced artificial intelligence features for premium users. Dubbed 'Spark +AI', the service first launched by utilising Microsoft Azure OpenAI software to draft, rewrite, and contour emails on behalf of users. In 2024, Spark +AI continued to enhance its service by rolling out a new feature which supports AI content generation in the style of the end-user, allowing for more human-like/natural email construction.

References

External links

*{{Official website, https://readdle.com/ Companies based in Odesa Software companies of Ukraine Business software companies