# Bitwarden Authenticator vs Lumo AI by Proton

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 (#189 vs unranked). On price, review sentiment, update cadence and ads there is nothing between them.

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.

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.

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.

## The numbers

| Metric | Bitwarden Authenticator | Lumo AI by Proton |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (95 ratings)](https://appshunter.io/ios/app/bitwarden-authenticator/id6497335175/reviews) | **[3.8 (525 ratings)](https://appshunter.io/ios/app/lumo-ai-by-proton/id6746714949/reviews)** |
| Number of ratings | 95 | **525** |
| Positive reviews | 41.3% of reviews | **45.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#189** |
| Size | 71 MB | 96 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bitwarden Inc](https://appshunter.io/developer/1137397743) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### Bitwarden Authenticator

[App page](https://appshunter.io/ios/app/bitwarden-authenticator/id6497335175)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Search results showing placeholder codes
- Backup not restoring codes after device restore
- Crashes after app updates

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/lumo-ai-by-proton/id6746714949)

**Currently charting:** #189 Top Free · Productivity (US App Store)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumo Plus (1 month) | $12.99 | per month |
| Lumo Plus (12 months) | $119.99 | per year |

**What reviewers like**

- 👍 Sophisticated knowledge base
- 🚀 Rapid evolution with quality
- 💡 Potential for vision-enabled model

**What reviewers complain about**

- 🐛 Inability to answer basic questions
- 🔒 Privacy concerns with data processing
- 🐛 Inconsistent responses
- 🐛 Frequent sign-outs
- 🐛 Dark mode issues

**Reported bugs**

- Slow sign-in page
- Lack of real-time data access

**Requested features**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*