Yubico Authenticator vs Lumo AI by Proton
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yubico Authenticator
Secure your online accounts with hardware-backed two-factor authentication. Store unique credentials on a physical security key, eliminating the need to store sensitive data on your mobile device. Generate verification codes without an internet connection for enhanced account protection.
- Hardware-backed security key storage
- Touch or NFC authentication
- USB-C support
- Biometric unlock (FaceID/TouchID)
- QR code setup
- User presence verification
- Smart Card support
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Store your unique credentials on a hardware-backed security key and take it wherever you go from mobile to desktop. No more storing sensitive secrets on your mobile phone, leaving your account vulnerable to takeovers. With the Yubico Authenticator you can raise the bar for security. * The Yubico Authenticator will work with any USB, Lightning, or NFC-enabled YubiKeys. * As iPads do not have NFC, they will only work through a Lightning or USB connection. The Yubico Authenticator generates a code used to verify your identity as you are logging into various services. No connectivity needed! Features include: Touch or NFC Authentication - Touch the YubiKey sensor or simply tap a YubiKey with NFC to a mobile phone that is NFC-enabled to store your credential on the YubiKey USB-C support - Connect the YubiKey 5Ci or any USB-C type YubiKey. When prompted, depending on the key, touch the contacts on the sides of the key or the golden ring on the top Biometric support - Experience greater convenience by unlocking your YubiKey with FaceID or TouchID Easy Setup - QR codes available from the services you wish to protect with strong authentication User Presence - New codes generated with just a touch or NFC tap of the YubiKey Compatible - Secure all the services currently compatible with other Authenticator apps Secure - Hardware-backed strong two-factor authentication with secret stored on the YubiKey, not on the mobile device Versatile - Support for multiple work and personal accounts Portable - Get the same set of codes across our other Yubico Authenticator apps for desktops as well as for all leading mobile platforms Flexible - Support for time-based and counter-based code generation Smart Card - Support for Apple's CryptoTokenKit Extension making it possible to use certificates stored on your YubiKey to authenticate with other apps and sites Experience security the modern way with the Yubico Authenticator. Visit yubico.com to learn more.
Lumo AI by Proton
This AI assistant prioritizes your privacy, offering help with productivity, curiosity, and staying informed. Developed by the team behind trusted encrypted services, it ensures your data remains secure.
- Privacy-first AI assistant
- Boost productivity
- Satisfy curiosity
- Stay informed
- Secure data handling
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Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and yours alone. Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass. THOUGHTFUL HELP FOR ANY TASK Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning. FAST, POWERFUL WEB SEARCH Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more. CREATE AND REFINE IMAGES AND FILES Work with images and files just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files. AI THAT EVOLVES OVER TIME Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want. STAY PRODUCTIVE AND ORGANIZED Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day. GHOST MODE For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind. PRIVACY YOU CAN VERIFY Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source. Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today. For more information, visit our website: https://lumo.proton.me/about Terms of service: https://lumo.proton.me/legal/terms Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Our open-source code base: https://github.com/ProtonLumo/ios-lumo
Screenshots
Verdict
The clearest difference is in-app purchases: Yubico Authenticator at none against Lumo AI by Proton's 2. Lumo AI by Proton's advantage is update cadence (every 11 days vs monthly). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Lumo AI by Proton sells 2 in-app purchases, starting at $12.99 per month. Yubico Authenticator asks for nothing beyond the download.
Lumo AI by Proton holds the better App Store score, 3.8 against 3.7. Both are backed by a comparable volume of ratings — 287 and 560 respectively. Written reviews point the same way: 43% of Yubico Authenticator's written reviews are positive against 46% of Lumo AI by Proton's.
Yubico Authenticator ships an update monthly, Lumo AI by Proton every 11 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | Yubico Authenticator | Lumo AI by Proton |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (287 ratings) | 3.8 (560 ratings) — better |
| Positive reviews | 42.5% of reviews | 45.9% of reviews — better |
| Number of ratings | 287 | 560 — better |
| Update frequency | Monthly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 4 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Yubico | Proton AG |
Customer experience
Yubico Authenticator
Lumo AI by Proton
User reviews
Yubico Authenticator
From 287 App Store ratingsWhat we love
- 🚀 Works well with Yubikey
- 🔒 Secure storage of OATH secrets
- 👍 Simple and easy to use
- 🚀 NFC support added
Room to improve
- 🐛 NFC not working on some devices
- 🐛 Clunky UI for password-protected keys
- 🐛 Crashes and freezes reported
- 🐛 Incompatible with some devices (iPad, older iPhones)
Lumo AI by Proton
From 560 App Store ratingsWhat we love
- 👍 Sophisticated knowledge base
- 🚀 Rapid evolution with quality
- 💡 Potential for vision-enabled model
Room to improve
- 🐛 Inability to answer basic questions
- 🔒 Privacy concerns with data processing
- 🐛 Inconsistent responses
- 🐛 Frequent sign-outs
- 🐛 Dark mode issues
Bugs and requests
Yubico Authenticator
Reported bugs
4 issues- NFC not working reliably
- Accounts disappearing after updates
- Calculation of codes not working
- Keyboard issues when using keys
Requested features
5 requests- Allow editing and rearranging of entries
- Add support for multiple keys per account
- Improve iPad/tablet support
- Add dark mode option
- Improve QR code scanning
Lumo AI by Proton
Reported bugs
2 issues- Slow sign-in page
- Lack of real-time data access
Requested features
5 requests- Dynamic Type support for adjustable font size
- Secure access to Proton Drive files
- Ghost mode to ensure no chat history is saved
- Intuitive history clearing option
- App mode
In-app purchases
Yubico Authenticator
No in-app purchases
Lumo AI by Proton
- Lumo Plus (1 month)$12.991 Month
- Lumo Plus (12 months)$119.991 Year
Questions
Is Yubico Authenticator free?
Is Lumo AI by Proton free?
Which has better reviews, Yubico Authenticator or Lumo AI by Proton?
Do Yubico Authenticator or Lumo AI by Proton have ads?
Which is updated more often, Yubico Authenticator or Lumo AI by Proton?
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