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JPKI User Client Software vs Proton Mail

Side-by-side comparison for macOS

JPKI User Client Software

8.0
Security & Privacy

Digital signature and authentication client for the My Number Card (JPKI)

Proton Mail

8.0
Security & Privacy

Client for Proton Mail and Proton Calendar

Metric JPKI User Client Software Proton Mail
Category Security & Privacy Security & Privacy
AI Score 8.0 8.0
30-day Installs 7 615
90-day Installs 7 1.6K
365-day Installs 7 6.3K
Version 3.9,01-01 1.15.1
Auto-updates No Yes
Deprecated No No
GitHub Stars — 21
GitHub Forks — 6
Open Issues — 14
License — GPL-3.0
Language — Go
Last GitHub Commit — 8mo ago
First Seen Sep 27, 2026 Mar 15, 2024

Reviews

JPKI User Client Software

The JPKI User Client Software is a digital signature and authentication tool specifically designed for Japanese My Number Cards, providing secure access to government and online services. It is essential for users requiring digital authentication in Japan.

Enables digital signatures and authentications using the My Number Card (JPKI) for secure access to online services.

Pros

  • + Essential for Japanese users needing digital authentication
  • + Secure and integrates with government services
  • + Up-to-date version ensuring reliability

Cons

  • - Limited to Japanese users
  • - No auto-update feature

Proton Mail

Proton Mail is a privacy-focused desktop client for accessing encrypted email and calendar services, ideal for users prioritizing security and anonymity, such as activists and journalists.

Provides a desktop interface for Proton Mail and Proton Calendar services, enabling secure communication and calendar management.

Pros

  • + Strong focus on privacy and security
  • + Supports encrypted email and calendar services
  • + Regular updates and active development
  • + MacOS integration for seamless use
  • + Open-source with community contributions

Cons

  • - Occasional privacy controversies
  • - Some usability issues reported