# Orbit vs Lumen

The clearest difference is in-app purchases: Lumen at none against Orbit's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Orbit sells 2 in-app purchases, starting at $4.99 per month. Lumen asks for nothing beyond the download.

Orbit ships an update every 3 weeks, Lumen every 2 weeks. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Orbit | Lumen |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 12 MB | 28 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [XxxJAYxxX LLC](https://appshunter.io/developer/1834339655) | [Daniel Kosukhin](https://appshunter.io/developer/1852657475) |

## What reviewers say

### Orbit

[App page](https://appshunter.io/ios/app/orbit-personal-agent/id6762579291)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Orbit Premium Monthly / Yearly | $4.99 | per month |
| Orbit Premium Monthly / Yearly | $29.99 | per year |


### 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


## Frequently asked questions

### Is Orbit free?

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

### Is Lumen free?

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

### Do Orbit or Lumen have ads?

Neither Orbit nor Lumen shows ads.

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

Orbit ships an update every 3 weeks, and Lumen every 2 weeks. Most recently, Orbit was updated on October 11, 2026 and Lumen on October 14, 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.*