# Atomic KB vs Aether

The clearest difference is update cadence: Aether at weekly against Atomic KB's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Atomic KB ships an update every 2 months, Aether weekly. Both last shipped on September 18, 2026.

## The numbers

| Metric | Atomic KB | Aether |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 6 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Foldspace Labs LLC](https://appshunter.io/developer/1796614941) | [Critical Dynamics OU](https://appshunter.io/developer/330152929) |

## What reviewers say

### Atomic KB

[App page](https://appshunter.io/ios/app/atomic-kb/id6759266634)

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

**In-app purchases:** none


### Aether

[App page](https://appshunter.io/ios/app/aether-knowledge-engine/id6761418802)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atomic KB free?

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

### Is Aether free?

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

### Do Atomic KB or Aether have ads?

Neither Atomic KB nor Aether shows ads.

### Which is updated more often, Atomic KB or Aether?

Atomic KB ships an update every 2 months, and Aether weekly. Most recently, Atomic KB was updated on September 18, 2026 and Aether on September 18, 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.*