# OmniAI Browser Mobile vs nook

The clearest difference is in-app purchases: nook at none against OmniAI Browser Mobile's 1. nook also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OmniAI Browser Mobile sells 1 one-off in-app purchase. nook asks for nothing beyond the download.

OmniAI Browser Mobile ships an update fortnightly, nook every 3 days. The most recent releases landed on October 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | OmniAI Browser Mobile | nook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nook-second-brain/id6773906992/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | — | Free |
| Size | 3 MB | 54 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [TIEZHU KONG](https://appshunter.io/developer/1856329276) | [Cara Rosengard](https://appshunter.io/developer/6773906994) |

## What reviewers say

### OmniAI Browser Mobile

[App page](https://appshunter.io/ios/app/omniai-browser-mobile/id6756325836)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Full Unlock | $19.99 | one-time |


### nook

[App page](https://appshunter.io/ios/app/nook-second-brain/id6773906992)

Save articles, recipes, products, places, videos, documents, and ideas from across the web. Organize your scattered links into visual, searchable saves with context, notes, and reminders. Keep your digital life organized in one quiet place.

**Highlights:** Save articles, recipes, products, places, videos, documents, and ideas, Visual and searchable saves, Add context, notes, and reminders, Organize saves by custom categories, Consolidate scattered links

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

**In-app purchases:** none


## Frequently asked questions

### Is OmniAI Browser Mobile free?

OmniAI Browser Mobile is free to download, with in-app purchases available.

### Is nook free?

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

### Do OmniAI Browser Mobile or nook have ads?

Neither OmniAI Browser Mobile nor nook shows ads.

### Which is updated more often, OmniAI Browser Mobile or nook?

OmniAI Browser Mobile ships an update fortnightly, and nook every 3 days. Most recently, OmniAI Browser Mobile was updated on October 5, 2026 and nook on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*