# Kaspa Observer vs AI Bookkeeper Hub

The clearest difference is update cadence: Kaspa Observer at weekly against AI Bookkeeper Hub's every 3 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.

Kaspa Observer ships an update weekly, AI Bookkeeper Hub every 3 months. Both last shipped on November 5, 2026.

## The numbers

| Metric | Kaspa Observer | AI Bookkeeper Hub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Size | 74 MB | 35 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nikolai Karavanov](https://appshunter.io/developer/1829272078) | [Wai Lok Samuel So](https://appshunter.io/developer/1853438418) |

## What reviewers say

### Kaspa Observer

[App page](https://appshunter.io/ios/app/kaspa-observer/id6749205046)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Bookkeeper Hub

[App page](https://appshunter.io/ios/app/ai-bookkeeper-hub/id6755366847)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kaspa Observer free?

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

### Is AI Bookkeeper Hub free?

AI Bookkeeper Hub is free to download, with no in-app purchases.

### Do Kaspa Observer or AI Bookkeeper Hub have ads?

Neither Kaspa Observer nor AI Bookkeeper Hub shows ads.

### Which is updated more often, Kaspa Observer or AI Bookkeeper Hub?

Kaspa Observer ships an update weekly, and AI Bookkeeper Hub every 3 months. Most recently, Kaspa Observer was updated on November 5, 2026 and AI Bookkeeper Hub on November 5, 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.*