# Reader by Bookmark vs Grok Bot

The clearest difference is update cadence: Grok Bot at every 4 days against Reader by Bookmark's fortnightly. Grok Bot also leads on chart position (#8 vs unranked). Reader by Bookmark's advantage is iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Reader by Bookmark sells 2 in-app purchases, starting at $9.99 per month and Grok Bot sells 3 in-app purchases, starting at $25.99 per month. Whichever you choose, the download price is not the number that matters.

Reader by Bookmark ships an update fortnightly, Grok Bot every 4 days. Both last shipped on October 17, 2026.

## The numbers

| Metric | Reader by Bookmark | Grok Bot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (8.3K ratings)](https://appshunter.io/ios/app/grok-bot/id6794501026/reviews)** |
| Number of ratings | — | **8.3K** |
| Positive reviews | — | 81.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#8** |
| Size | 68 MB | 85 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Grant Thompson](https://appshunter.io/developer/6791379672) | [X Corp.](https://appshunter.io/developer/296415947) |

## What reviewers say

### Reader by Bookmark

[App page](https://appshunter.io/ios/app/reader-by-bookmark/id6792166309)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $99.00 | per year |


### Grok Bot

[App page](https://appshunter.io/ios/app/grok-bot/id6794501026)

**Currently charting:** #8 Top Free · Productivity, #28 Top Grossing · Productivity, #70 Top Free (US App Store)

This app provides AI teammates that can perform real work across your existing tools and websites. Message AI agents like coworkers to handle projects from start to finish, even after you close your laptop. Automate multi-step workflows and show bots how to perform tasks for them to run as routines.

**Highlights:** AI teammates for real work, Works across existing tools and websites, Message AI agents like coworkers, Automates multi-step workflows, Bots learn and run routines, Parallel AI agent execution

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $25.99 | per month |
| Pro+ | $77.99 | per month |
| Ultra | $259.99 | per month |


## Frequently asked questions

### Is Reader by Bookmark free?

Reader by Bookmark is free to download, with in-app purchases available.

### Is Grok Bot free?

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

### Do Reader by Bookmark or Grok Bot have ads?

Neither Reader by Bookmark nor Grok Bot shows ads.

### Which is updated more often, Reader by Bookmark or Grok Bot?

Reader by Bookmark ships an update fortnightly, and Grok Bot every 4 days. Most recently, Reader by Bookmark was updated on October 17, 2026 and Grok Bot on October 17, 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.*