# Vindkraft vs Lumo AI by Proton

The clearest difference is price: Lumo AI by Proton at Free against Vindkraft's $0.99. Lumo AI by Proton also leads on update cadence (every 11 days vs every 14 months). Vindkraft's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 17.6). On ads and device support there is nothing between them.

Lumo AI by Proton is free to download; Vindkraft costs $0.99 up front. Lumo AI by Proton sells 2 in-app purchases, starting at $12.99 per month. Vindkraft asks for nothing beyond the download.

Vindkraft ships an update every 14 months, Lumo AI by Proton every 11 days. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Vindkraft | Lumo AI by Proton |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.9 (567 ratings)](https://appshunter.io/ios/app/lumo-ai-by-proton/id6746714949/reviews)** |
| Number of ratings | — | **567** |
| Positive reviews | — | 45.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 103 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [domesticusdevelop](https://appshunter.io/developer/373834594) | [Proton AG](https://appshunter.io/developer/979659484) |

## What reviewers say

### Vindkraft

[App page](https://appshunter.io/ios/app/vindkraft/id588960833)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Vindkraft free?

Vindkraft costs $0.99, with no in-app purchases.

### Is Lumo AI by Proton free?

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

### Do Vindkraft or Lumo AI by Proton have ads?

Neither Vindkraft nor Lumo AI by Proton shows ads.

### Which is updated more often, Vindkraft or Lumo AI by Proton?

Vindkraft ships an update every 14 months, and Lumo AI by Proton every 11 days. Most recently, Vindkraft was updated on November 6, 2026 and Lumo AI by Proton on November 11, 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.*