# Anker Nebula vs Mark Bookmark

The clearest difference is review sentiment: Mark Bookmark at 100% against Anker Nebula's 37%. Mark Bookmark also leads on rating (5.0 vs 4.3) and in-app purchases (none vs 4). Anker Nebula's advantage is ratings volume (2.1K vs 2) and device support (3 vs 1). On price, ads and monetization model there is nothing between them.

Both are free to download. Anker Nebula sells 4 one-off in-app purchases. Mark Bookmark asks for nothing beyond the download.

Mark Bookmark holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Anker Nebula has 2.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 37% of Anker Nebula's written reviews are positive against 100% of Mark Bookmark's.

Anker Nebula ships an update every 5 weeks, Mark Bookmark every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Anker Nebula | Mark Bookmark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (2.1K ratings)](https://appshunter.io/ios/app/anker-nebula/id1319092174/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mark-bookmark/id6756251684/reviews)** |
| Number of ratings | **2.1K** | 2 |
| Positive reviews | 36.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | Free |
| Size | 354 MB | 121 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Power Mobile Life LLC](https://appshunter.io/developer/1096079944) | [Mark Inc](https://appshunter.io/developer/1859545872) |

## What reviewers say

### Anker Nebula

[App page](https://appshunter.io/ios/app/anker-nebula/id1319092174)

Control your Nebula smart projector or soundbar remotely. Navigate menus, type text, and access functions using your mobile device's touchpad, virtual keyboard, and dedicated buttons.

**Highlights:** Touchpad control, Virtual keyboard, Function buttons, Device control, Seamless integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 150 Sparks | $14.99 | one-time |
| 600 Sparks | $54.99 | one-time |
| 1200 Sparks | $99.99 | one-time |
| 2640 Sparks | $199.99 | one-time |

**What reviewers like**

- 🚀 Great app companion
- 👍 Easy to use
- 👍 Seamless connectivity
- 🚀 Responsive and intuitive
- 👍 Excellent projector quality

**What reviewers complain about**

- 🐛 Frequent disconnections
- 🐛 Buggy and glitchy
- 🐛 Compatibility issues with iOS 14
- 🐛 Unreliable volume controls
- 🐛 Laggy and slow performance

**Reported bugs**

- App crashes frequently
- Unable to connect to projector
- Keyboard input not working properly
- Mouse cursor disappears unexpectedly
- Projector features not functioning as expected

**Requested features**

- Brightness adjustment options
- Improved keyboard functionality
- Ability to control volume with phone buttons
- Better integration with streaming services
- Support for 3D mode


### Mark Bookmark

[App page](https://appshunter.io/ios/app/mark-bookmark/id6756251684)

Capture physical notes and ideas from books and printouts, turning them into organized insights. Automatically catalog your reading and search for specific passages. Chat with your highlights to trace ideas across different sources.

**Highlights:** Scan and save passages with high accuracy, Record voice notes without unlocking device, Automatic cataloging by book ISBN, Searchable library of captured content, AI chat with highlights and annotations, Integrations with Notion and Readwise, Offline capture and sync

**In-app purchases:** none


## Frequently asked questions

### Is Anker Nebula free?

Anker Nebula is free to download, with in-app purchases available.

### Is Mark Bookmark free?

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

### Which has better reviews, Anker Nebula or Mark Bookmark?

Mark Bookmark is rated higher. Anker Nebula averages 4.3 out of 5 from 2.1K ratings, while Mark Bookmark averages 5.0 from 2 ratings.

### Do Anker Nebula or Mark Bookmark have ads?

Neither Anker Nebula nor Mark Bookmark shows ads.

### Which is updated more often, Anker Nebula or Mark Bookmark?

Anker Nebula ships an update every 5 weeks, and Mark Bookmark every 4 days. Most recently, Anker Nebula was updated on October 25, 2026 and Mark Bookmark on October 25, 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.*