Proton Authenticator vs Opura

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

Opura is a personal, linguistics-based writing app designed to accelerate your mastery of any writing system. Whether you are learning a shorthand system like Gregg or Teeline, acquiring a character-based language, or creating your own secret code, Opura assists in all aspects of your writing journey—from defining your words to implementing them in full passages! With Opura, you define words or phrases, draw their own outlines, revise them with spaced repetition, and practice full passages using your saved dictionary. Features include: • Define custom shorthand/written outlines for words and phrases • Revise saved words with spaced repetition-style grading • Practice generated sentence prompts using your saved dictionary • Draw with Apple Pencil or touch • Choose blank, dotted, or lined writing paper • Save full-length passages and back-learn new vocabulary • Search and organize your written library • Choose from clean display themes and customize your interface • Save or transfer your data locally between devices Opura is designed to be entirely personal and connected to words you use. If you want to master cooking vocabulary, define and practice words like “cinnamon,” “parsley,” “ounces,” “tablespoons,” and more. For courtroom notes, define terms like “objection,” “testimony,” “evidence,” “witness,” and “verdict.” For school, build outlines for your class vocabulary. With Opura, build a library of words that matter to you all in one place! Opura is an independent educational app and is not affiliated with or endorsed by any shorthand publisher, linguistic body, or rights holder.