Comparison

Bitwarden Authenticator vs Lumo AI by Proton

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bitwarden Authenticator

Generate secure verification codes for two-factor authentication on your device. This app supports any website or application using industry-standard TOTP, adding an extra layer of protection to your online accounts.

Highlights
  • Generate 2FA verification codes
  • Supports TOTP standard
  • Universal compatibility
  • Simple, intuitive interface
  • Adds extra layer of protection
Features
Read full description

New from Bitwarden, provider of the password manager trusted by millions, Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts. Using industry-standards, Bitwarden Authenticator supports any website or application that uses TOTP. ADD AN EXTRA LAYER OF PROTECTION Generate verification codes to ensure your identity is verified, keeping your sensitive data out of reach of imposters. UNIVERSAL COMPATIBILITY Bitwarden Authenticator uses industry standard methods for verification code generation, so it will work with any website or application that utilizes time-based one-time passwords. EASY TO USE A simple, intuitive design and straightforward interface makes it easy to start incorporating authentication into your digital life Bitwarden empowers organizations to secure passwords, developer secrets, and passkeys. Visit Bitwarden.com to learn more about Bitwarden Password Manager, Bitwarden Secrets Manager and Bitwarden Passwordless.dev!

About

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.

Highlights
  • Privacy-first AI assistant
  • Boost productivity
  • Satisfy curiosity
  • Stay informed
  • Secure data handling
Read full description

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

Bitwarden Authenticator4 screens
Lumo AI by Proton4 screens

Verdict

The call

The clearest difference is in-app purchases: Bitwarden Authenticator at none against Lumo AI by Proton's 2. Bitwarden Authenticator also leads on iOS requirement (15.0 vs 17.6). Lumo AI by Proton's advantage is rating (3.8 vs 3.5) and chart position (#186 vs unranked). On price, review sentiment, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lumo AI by Proton sells 2 in-app purchases, starting at $12.99 per month. Bitwarden Authenticator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Lumo AI by Proton holds the better App Store score, 3.8 against 3.5. That said, the two scores are not equally well evidenced: Lumo AI by Proton has 525 ratings behind it against 95, so its average is the more settled of the two. Written reviews point the same way: 41% of Bitwarden Authenticator's written reviews are positive against 46% of Lumo AI by Proton's.

UpkeepUpdate frequency

Bitwarden Authenticator ships an update fortnightly, Lumo AI by Proton every 11 days. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 5 level
Bitwarden Authenticator versus Lumo AI by Proton: the parameters behind the verdict, then further details
ParameterBitwarden AuthenticatorLumo AI by Proton
PriceFreeFree
Rating3.5 (95 ratings)3.8 (525 ratings) — better
Positive reviews41.3% of reviews45.6% of reviews — better
Number of ratings95525 — better
Update frequencyFortnightlyEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#186 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size71 MB96 MB
Age rating4+4+
DeveloperBitwarden IncProton AG

Customer experience

Bitwarden Authenticator

All ratings95 ratings
Positive56.8%
Neutral11.6%
Negative31.6%
Written reviews155 reviews
Positive41.3%
Neutral22.6%
Negative36.1%

Lumo AI by Proton

All ratings525 ratings
Positive66.5%
Neutral11.0%
Negative22.5%
Written reviews540 reviews
Positive45.6%
Neutral19.1%
Negative35.4%

User reviews

Bitwarden Authenticator

From 95 App Store ratings

What we love

  • 👍 Good start
  • 🚀 Supports export and import
  • 🔒 Backed by a trusted company
  • 💡 Dedicated authenticator app

Room to improve

  • 🐛 Crashes on launch
  • 🐛 Search function not working
  • 🐛 Backup not working as expected
  • 🐛 Compatibility issues with older devices

Lumo AI by Proton

From 525 App Store ratings

What 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

Bitwarden Authenticator

Reported bugs

3 issues
  • Search results showing placeholder codes
  • Backup not restoring codes after device restore
  • Crashes after app updates

Requested features

5 requests
  • Add icons for services
  • Allow rearranging of entries
  • Implement iCloud/cloud sync
  • Add Apple Watch support
  • Require biometric authentication on each app open

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

None

Bitwarden Authenticator

No in-app purchases

2 purchases

Lumo AI by Proton

Subscriptions2
  • Lumo Plus (1 month)$12.991 Month
  • Lumo Plus (12 months)$119.991 Year

Questions

Is Bitwarden Authenticator free?
Bitwarden Authenticator is free to download, with no in-app purchases.
Is Lumo AI by Proton free?
Lumo AI by Proton is free to download, with in-app purchases available.
Which has better reviews, Bitwarden Authenticator or Lumo AI by Proton?
Lumo AI by Proton is rated higher. Bitwarden Authenticator averages 3.5 out of 5 from 95 ratings, while Lumo AI by Proton averages 3.8 from 525 ratings.
Do Bitwarden Authenticator or Lumo AI by Proton have ads?
Neither Bitwarden Authenticator nor Lumo AI by Proton shows ads.
Which is updated more often, Bitwarden Authenticator or Lumo AI by Proton?
Bitwarden Authenticator ships an update fortnightly, and Lumo AI by Proton every 11 days. Most recently, Bitwarden Authenticator was updated on September 23, 2026 and Lumo AI by Proton on September 22, 2026.

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