Calendar & Contacts

4 eligible non-US apps ranked in this category.

Rank #1

Radicale · Paris, France

83/100 EU Open source Self-hostable

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Rank #2

Proton AG · Geneva, Switzerland

82/100 CH Closed source Hosted only

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Rank #3

Tuta GmbH · Hanover, Germany

80/100 EU Closed source Hosted only

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Rank #4

EteSync · London, UK

78/100 UK Open source Hosted only

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