# Afterlife AI vs Knowledge Base

The clearest difference is in-app purchases: Knowledge Base at none against Afterlife AI's 6. Afterlife AI's advantage is iOS requirement (16.4 vs 26.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Afterlife AI sells 6 in-app purchases, starting at $14.99 per month. Knowledge Base asks for nothing beyond the download.

Afterlife AI ships an update every 8 days, Knowledge Base weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Afterlife AI | Knowledge Base |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Size | 101 MB | 9 MB |
| Requires iOS | **16.4** | 26.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Idy Pty Ltd](https://appshunter.io/developer/1891854207) | [CHANG CHIA-WEI](https://appshunter.io/developer/1804812181) |

## What reviewers say

### Afterlife AI

[App page](https://appshunter.io/ios/app/afterlife-ai-voice-journal/id6761866729)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Legacy | $14.99 | per month |
| Eternal | $29.99 | per month |
| Legacy | $149.00 | per year |
| Eternal | $299.00 | per year |
| A year of Legacy, as a gift | $149.00 | one-time |
| A year of Eternal, as a gift | $299.00 | one-time |


### Knowledge Base

[App page](https://appshunter.io/ios/app/knowledge-base-second-brain/id6785236967)

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

**In-app purchases:** none


## Frequently asked questions

### Is Afterlife AI free?

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

### Is Knowledge Base free?

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

### Do Afterlife AI or Knowledge Base have ads?

Neither Afterlife AI nor Knowledge Base shows ads.

### Which is updated more often, Afterlife AI or Knowledge Base?

Afterlife AI ships an update every 8 days, and Knowledge Base weekly. Most recently, Afterlife AI was updated on October 31, 2026 and Knowledge Base on October 31, 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.*