# Lumo AI by Proton vs Schedule Block Builder

The clearest difference is in-app purchases: Schedule Block Builder at none against Lumo AI by Proton's 2. Lumo AI by Proton's advantage is update cadence (every 11 days vs every 3 months). On price, ads, device support and iOS requirement 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. Schedule Block Builder asks for nothing beyond the download.

Lumo AI by Proton ships an update every 11 days, Schedule Block Builder every 3 months. The most recent releases landed on November 11, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lumo AI by Proton | Schedule Block Builder |
| --- | --- | --- |
| Price | Free | 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 103 MB | 16 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Proton AG](https://appshunter.io/developer/979659484) | [Cezar Beltrao](https://appshunter.io/developer/1895027273) |

## 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


### Schedule Block Builder

[App page](https://appshunter.io/ios/app/schedule-block-builder/id6762819276)

**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 Schedule Block Builder free?

Schedule Block Builder is free to download, with no in-app purchases.

### Do Lumo AI by Proton or Schedule Block Builder have ads?

Neither Lumo AI by Proton nor Schedule Block Builder shows ads.

### Which is updated more often, Lumo AI by Proton or Schedule Block Builder?

Lumo AI by Proton ships an update every 11 days, and Schedule Block Builder every 3 months. Most recently, Lumo AI by Proton was updated on November 11, 2026 and Schedule Block Builder on October 28, 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.*