Proton Authenticator & 2FA vs Kupaa

Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds. Secure Backup & Export: Retain full control of your data with easy backup and restore options. Swiss Privacy by Design: Built under Switzerland's strongest data protection regulations. Open Source & Transparent: Auditable code. No tracking. No ads. Take control of your digital security with encryption you can trust. Free to use: No Proton account required, ad-free. Offline support: On mobile and desktop apps No other 2FA app provides this combination of security and privacy. Trusted by millions. Built by Proton. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me

Flow state is the condition of complete absorption where focus feels effortless and the work feels alive. It is where your best work happens, and reaching it and staying there is the hard part. It takes 15 to 25 minutes to enter, and a single interruption costs an average of 23 minutes to recover from. Kupaa structures a session into timed focus segments and guided breathing breaks. Press start, and the rest runs automatically. The breathing break is the active recovery that keeps the cycle going. Resonance-frequency breathing (5 to 6 breaths per minute) restores HRV coherence within 3 to 5 minutes, which prevents the cognitive fatigue that would otherwise cut the next segment short. Kupaa is built for professionals whose best work requires holding complex models in working memory for hours, where every context switch carries measurable cost. What Kupaa includes: - Focus segments of 10, 15, 20, 25, 30, or 45 minutes - Guided breathing with animated rhythm and dedicated inhale and exhale audio - Ambient background sound to mask environmental variability during focus - Multiple breathing paces calibrated to natural resting rhythm - Automatic transitions between focus and breathing