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Maritacas

Consumer apps for chess practice, Estonian–English dictionary lookup and daily puzzle play, from Tartu

Tartu, EstoniaFounded 2025maritacas.ioWebsite technologies

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Highlights

  • Young companyFounded 2025
  • New on EvolcAdded 2026-10-27

About Maritacas

Maritacas OÜ builds apps for learning and play. Its products are ChessCoda, a chess coach that reviews a player's own games and turns mistakes into practice puzzles; Estagrammar, an Estonian–English dictionary covering over 175,000 words with all case forms and verb conjugations; and Erwin the Cat, a daily box-pushing puzzle with one new level per day.

The apps are aimed at chess players, learners of Estonian and English, and puzzle game fans. ChessCoda is offered on the web, iPhone and iPad, Estagrammar on the web and iPhone, and Erwin the Cat on the web.

Maritacas was founded in 2025 in Tartu, Estonia, where it is based. The company describes itself as an independent software company.

Product: ChessCoda (chess game review and practice puzzles), Estagrammar (Estonian–English dictionary with inflected-form search) and Erwin the Cat (daily box-pushing puzzle).

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