# Nautilus vs Previsión de recolección

The clearest difference is in-app purchases: Previsión de recolección at none against Nautilus's 3. Previsión de recolección also leads on iOS requirement (11.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Nautilus sells 3 in-app purchases, starting at $3.99 per month. Previsión de recolección asks for nothing beyond the download.

Nautilus ships an update every 11 days, Previsión de recolección every 2 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Nautilus | Previsión de recolección |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (3.2K ratings)](https://appshunter.io/ios/app/nautilus-web-word-annotate/id1422480068/reviews)** | — |
| Number of ratings | **3.2K** | — |
| Positive reviews | 48.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 502 MB | 17 MB |
| Requires iOS | 26.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Kairoos Solutions SL](https://appshunter.io/developer/978066434) | [Gregal Soluciones Informáticas](https://appshunter.io/developer/1344867717) |

## What reviewers say

### Nautilus

[App page](https://appshunter.io/ios/app/nautilus-web-word-annotate/id1422480068)

This app is a research-focused web browser and writing tool for iPad and iPhone. It allows users to read, annotate web pages and PDFs, and use AI for summarization and content generation. The app also supports document creation and organization, syncing across cloud services.

**Highlights:** Web browsing with research tools, AI-powered page summarization and translation, Direct annotation on web pages and PDFs, Export markup as PDF, Word, or Markdown, Integrated document drafting and organization, Cloud syncing with Dropbox, Google Drive, and iCloud, Lecture and interview recording with transcripts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nautilus Unlock All and AI | $3.99 | per month |
| Nautilus Unlock All and AI | $14.99 | per year |
| Nautilus Pro Lifetime | $14.99 | one-time |

**What reviewers like**

- 🚀 Excellent note-taking app
- 📁 Great folder organization
- 🎨 Customizable notebook covers
- 🔍 Useful PDF annotation tools
- 🤖 Impressive AI capabilities

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔄 Sync and file transfer issues
- 🕰️ Slow performance and lag
- 🔒 Poor customer support
- 💰 Misleading upgrade pricing

**Reported bugs**

- Notes randomly disappearing
- Formatting issues with text and images
- Unreliable audio recording and playback
- Compatibility problems with newer iOS versions
- Inability to transfer files between free and pro versions

**Requested features**

- Handwriting recognition
- Improved eraser and shape tools
- Customizable keyboard and toolbar
- Better integration with cloud storage
- Ability to rotate and resize images


### Previsión de recolección

[App page](https://appshunter.io/ios/app/prevision-de-recoleccion/id6444671127)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nautilus free?

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

### Is Previsión de recolección free?

Previsión de recolección is free to download, with no in-app purchases.

### Do Nautilus or Previsión de recolección have ads?

Neither Nautilus nor Previsión de recolección shows ads.

### Which is updated more often, Nautilus or Previsión de recolección?

Nautilus ships an update every 11 days, and Previsión de recolección every 2 weeks. Most recently, Nautilus was updated on November 11, 2026 and Previsión de recolección on November 3, 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.*