# Atona vs Lumen

The clearest difference is in-app purchases: Lumen at none against Atona's 3. Atona's advantage is ratings volume (13 vs 4) and iOS requirement (15.1 vs 18.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Atona sells 3 in-app purchases, starting at $11.99 per month. Lumen asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Atona against 5.0 for Lumen. Both are backed by a comparable volume of ratings — 13 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Atona ships an update weekly, Lumen every 2 weeks. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Atona | Lumen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (13 ratings)](https://appshunter.io/ios/app/atona/id6760990550/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/lumen-knowledge-browser/id6762682475/reviews) |
| Number of ratings | **13** | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Freemium | **Free** |
| Size | 57 MB | 28 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Iroko Labs, Inc.](https://appshunter.io/developer/6800544089) | [Daniel Kosukhin](https://appshunter.io/developer/1852657475) |

## What reviewers say

### Atona

[App page](https://appshunter.io/ios/app/atona/id6760990550)

This AI-powered assistant streamlines your workflow by managing your inbox, drafting emails, organizing your calendar, and scheduling meetings. It handles follow-ups and note-taking, allowing you to focus on your priorities. Designed with privacy in mind, sensitive data is processed on-device.

**Highlights:** Inbox triage and email drafting, Calendar organization and meeting scheduling, Automated follow-ups, Note-taking and meeting summaries, On-device sensitive data processing, Data export and deletion options

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essentials | $11.99 | per month |
| Standard | $23.99 | per month |
| Pro | $47.99 | per month |


### 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 Atona free?

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

### Is Lumen free?

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

### Which has better reviews, Atona or Lumen?

Atona and Lumen are both rated 5.0 out of 5 on the App Store, from 13 and 4 ratings respectively.

### Do Atona or Lumen have ads?

Neither Atona nor Lumen shows ads.

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

Atona ships an update weekly, and Lumen every 2 weeks. Most recently, Atona was updated on October 12, 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.*