# Lumen vs HeyCue

The clearest difference is in-app purchases: Lumen at none against HeyCue's 2. Lumen also leads on ads (none vs shown). HeyCue's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price and update cadence there is nothing between them.

Both are free to download. HeyCue sells 2 in-app purchases, starting at $9.99 per month. Lumen asks for nothing beyond the download.

Lumen ships an update every 2 weeks, HeyCue fortnightly. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Lumen | HeyCue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/lumen-knowledge-browser/id6762682475/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free | — |
| Size | 28 MB | 40 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Daniel Kosukhin](https://appshunter.io/developer/1852657475) | [RippleCue, LLC](https://appshunter.io/developer/1798497331) |

## What reviewers say

### Lumen

[App page](https://appshunter.io/ios/app/lumen-knowledge-browser/id6762682475)

This app acts as a browser that remembers what you read, building a personal knowledge base from engaged pages. It allows you to ask questions in plain English about your reading history, with answers generated by an on-device AI. All your data remains private and offline.

**Highlights:** On-device AI knowledge base, Plain English questioning, Automatic content organization, Private and offline browsing, Tracker blocking, Source citation for answers

**In-app purchases:** none


### HeyCue

[App page](https://appshunter.io/ios/app/heycue-ai-personal-assistant/id6763369480)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal | $9.99 | per month |
| Personal Pro | $19.99 | per month |


## Frequently asked questions

### Is Lumen free?

Lumen is free to download, with no in-app purchases.

### Is HeyCue free?

HeyCue is free to download, with in-app purchases available.

### Do Lumen or HeyCue have ads?

HeyCue shows ads; Lumen does not.

### Which is updated more often, Lumen or HeyCue?

Lumen ships an update every 2 weeks, and HeyCue fortnightly. Most recently, Lumen was updated on October 14, 2026 and HeyCue on October 20, 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.*