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Readdle

Readdle is a Ukrainian mobile application development company. The company research and development is based in Odesa, Ukraine. The operation is mostly built around the App Store,[5] cumulatively generating over 100 million downloads.[6] The company was founded by former college roommates Igor Zhadanov, Alex Tyagulsky, Andrian Budantsov, and Dmitry Protserov.[7]

Products

Documents

Documents (previously ReaddleDocs) is a file management application.[9] 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.[7] It was initially released as a Safari-based web service in 2007.[10] Later, Apple asked Readdle to submit the app (then called ReaddleDocs) to become one of the 500 apps available on the App Store when it launched on July 10, 2008.[11] After Wall Street Journal writer Walt Mossberg endorsed the app, sales increased ninefold, netting the company $500–1000 a week.[7] In 2013, the app rebranded as Documents.[12]

PDF Expert

PDF Expert is a PDF editing app for iPhone, iPad and Mac.[13][14] The app allows a user to read, annotate and edit PDFs, change text and images, fill in forms and sign contracts.[15]

PDF Expert was initially launched for iOS in 2010 for the first iPad and is now supported on the iPad, iPhone, and Mac.[16]

Spark

Spark is an email application for Windows, iOS, macOS, and Android devices.[18][19][20][21][22] Lifehacker wrote that Spark was the best alternative for Mailbox users when that service went offline.[23] It was released on April 2, 2019, and was Readdle's first app released on Android.[24]

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.[25] 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.[26]

References

  1. ^ Stokel-Walker, Chris (16 April 2014). "Getting rich on apps in the heart of Ukraine". The Verge. Retrieved 16 July 2020.
  2. ^ "Looking back at Readdle's journey from zero to hero". TechCrunch. Retrieved 16 July 2020.
  3. ^ Heath, Alex. "This Ukrainian app maker hired an Apple veteran to reinvent email". Business Insider.
  4. ^ "Readdle - About". Readdle. Retrieved 18 February 2023.
  5. ^ Sawers, Paul (29 May 2015). "40M downloads on, Readdle adds a slick email client to its suite of iOS productivity apps". VentureBeat.
  6. ^ Dillet, Romain (12 October 2018). "Readdle's Denys Zhadanov to talk about bootstrapping at Disrupt Berlin". TechCrunch.
  7. ^ a b c Stokel-Walker, Chris (16 April 2014). "Getting rich on apps in the heart of Ukraine". The Verge. Retrieved 28 January 2024.
  8. ^ Stokel-Walker, Chris (16 April 2014). "Getting rich on apps in the heart of Ukraine". The Verge. Retrieved 9 January 2024.
  9. ^ Perez, Sarah (25 May 2017). "Readdle adds a clever drag-and-drop feature for moving files between its iPad productivity apps". TechCrunch. Retrieved 9 January 2024.
  10. ^ "10 years of Documents: From a document reader to a super app for file action". Readdle. 30 January 2023. Retrieved 28 January 2024.
  11. ^ "10 years of Documents: From a document reader to a super app for file action". Readdle. Retrieved 14 May 2024.
  12. ^ "ReaddleDocs Relaunches As Documents". 16 January 2013. Retrieved 9 January 2024.
  13. ^ "KELLNER: Travels with my istuff". The Washington Times.
  14. ^ Deorukhkar, Preshit (24 August 2016). "PDF Expert 2 — The Powerful PDF Editor for Mac". Beautiful Pixels.
  15. ^ "How to Unlock a PDF that is Password Protected". 30 November 2022. Retrieved 13 March 2023.
  16. ^ Viticci, Federico (November 2010). "PDF Expert: PDF Reader and Annotation Tool That Fits In My Workflow". MacStories.
  17. ^ "Spark Email – Connect Gmail, Yahoo & Outlook mail - Apps on Google Play". Google Play. Retrieved 23 December 2023.
  18. ^ Seifert, Dan (29 May 2015). "Spark for iPhone is a fast, smart way to manage your email". The Verge.
  19. ^ Biggs, John (2 June 2015). "Spark Is An Email Client That Shows You What's Important, Lets You Delete What Isn't". TechCrunch.
  20. ^ Bryant, Martin (29 May 2015). "Spark: a new iOS email app for power users, with clever ideas". The Next Web.
  21. ^ Klosowski, Thorin (25 February 2016). "Spark Arrives on iPad, Gets New Color Options on iPhone". LifeHacker.
  22. ^ Bell, Karissa (26 February 2016). "Mailbox is shutting down, so here are 5 email apps to use instead". Mashable.
  23. ^ Klosowski, Thorin (26 February 2016). "Mailbox Is Shutting Down, Try These Free Alternatives". Lifehacker.
  24. ^ Gartenberg, Chaim (2 April 2019). "Spark for Android is here to fill the Google Inbox-shaped hole in your heart". The Verge.
  25. ^ Potuck, Michael (24 May 2023). "Spark email gets +AI to 'write better emails faster' while keeping control of your inbox". 9to5Mac. Retrieved 11 April 2025.
  26. ^ "Spark Mail Gets 'My Writing Style' AI Email Assistant". MacRumors. 22 February 2024. Retrieved 11 April 2025.