# Lumo AI by Proton vs Brand Encoder Driver

The clearest difference is in-app purchases: Brand Encoder Driver at none against Lumo AI by Proton's 2. Brand Encoder Driver also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support 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. Brand Encoder Driver asks for nothing beyond the download.

Lumo AI by Proton ships an update every 11 days, Brand Encoder Driver every 3 weeks. The most recent releases landed on September 26, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Lumo AI by Proton | Brand Encoder Driver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (525 ratings)](https://appshunter.io/ios/app/lumo-ai-by-proton/id6746714949/reviews)** | — |
| Number of ratings | **525** | — |
| Positive reviews | 45.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 177 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proton AG](https://appshunter.io/developer/979659484) | [BRAND ENCODER L.L.C-FZ](https://appshunter.io/developer/1820452017) |

## What reviewers say

### Lumo AI by Proton

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

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


### Brand Encoder Driver

[App page](https://appshunter.io/ios/app/brand-encoder-driver/id6747454787)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lumo AI by Proton free?

Lumo AI by Proton is free to download, with in-app purchases available.

### Is Brand Encoder Driver free?

Brand Encoder Driver is free to download, with no in-app purchases.

### Do Lumo AI by Proton or Brand Encoder Driver have ads?

Neither Lumo AI by Proton nor Brand Encoder Driver shows ads.

### Which is updated more often, Lumo AI by Proton or Brand Encoder Driver?

Lumo AI by Proton ships an update every 11 days, and Brand Encoder Driver every 3 weeks. Most recently, Lumo AI by Proton was updated on September 26, 2026 and Brand Encoder Driver on September 24, 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.*