# Papers by ReadCube vs Newton AI Lab Assistant

The clearest difference is rating: Newton AI Lab Assistant at 5.0 against Papers by ReadCube's 3.7. Newton AI Lab Assistant also leads on update cadence (every 2 weeks vs every 2 months). Papers by ReadCube's advantage is in-app purchases (none vs 1) and ratings volume (557 vs 2). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Newton AI Lab Assistant sells 1 one-off in-app purchase. Papers by ReadCube asks for nothing beyond the download.

Newton AI Lab Assistant holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Papers by ReadCube has 557 ratings behind it against 2, so its average is the more settled of the two.

Papers by ReadCube ships an update every 2 months, Newton AI Lab Assistant every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Papers by ReadCube | Newton AI Lab Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (557 ratings)](https://appshunter.io/ios/app/papers-by-readcube/id864042981/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/newton-ai-lab-assistant/id6787454214/reviews)** |
| Number of ratings | **557** | 2 |
| Positive reviews | 48.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 79 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Digital Science & Research Solutions Inc.](https://appshunter.io/developer/864042984) | [Arun Asok](https://appshunter.io/developer/6787454216) |

## What reviewers say

### Papers by ReadCube

[App page](https://appshunter.io/ios/app/papers-by-readcube/id864042981)

Manage, read, and discover research literature on your mobile devices. Annotate PDFs, organize your library with custom lists and tags, and receive personalized recommendations for new papers. Syncs seamlessly with desktop and web applications.

**Highlights:** Read and manage research papers, Annotate PDFs with notes and highlights, Organize library with custom lists and tags, Discover new research with personalized recommendations, Search and download articles, Sync across devices

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Seamless syncing across devices
- 📚 Excellent for organizing and managing research papers
- 🔍 Helpful search and discovery features
- 💻 Good integration with desktop and web versions
- 📝 Useful annotation and highlighting tools

**What reviewers complain about**

- 🐛 Buggy annotation and handwriting tools
- 🔍 Inconsistent search and metadata retrieval
- 💾 Unreliable cloud sync and data loss issues
- 🖍️ Limited annotation features compared to competitors
- 🕰️ Slow development and lack of updates

**Reported bugs**

- Frequent app crashes and freezes
- Sync issues causing data loss and duplication
- Unreliable PDF downloads and access
- Inconsistent behavior of annotation tools
- Compatibility problems with newer devices and OS versions

**Requested features**

- Add eraser tool for handwritten annotations
- Improve PDF viewing and navigation experience
- Implement better organization and folder management
- Integrate citation and bibliography tools
- Provide more customization options


### Newton AI Lab Assistant

[App page](https://appshunter.io/ios/app/newton-ai-lab-assistant/id6787454214)

This app serves as an AI co-pilot and precision calculator for scientific research. It streamlines experiments by consolidating calculations, notes, and data, acting as a digital bench partner for chemists, biologists, and neuroscientists.

**Highlights:** AI-powered experiment troubleshooting, Molarity and molecular weight calculations, Smart formula parsing and elemental analysis, Solution prep, dilution, and dosing tools, Digital lab notebook with cross-device sync, Colony management and task reminders, Stereotaxic brain atlas coordinate lookup

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Newton Premium | $2.99 | one-time |


## Frequently asked questions

### Is Papers by ReadCube free?

Papers by ReadCube is free to download, with no in-app purchases.

### Is Newton AI Lab Assistant free?

Newton AI Lab Assistant is free to download, with in-app purchases available.

### Which has better reviews, Papers by ReadCube or Newton AI Lab Assistant?

Newton AI Lab Assistant is rated higher. Papers by ReadCube averages 3.7 out of 5 from 557 ratings, while Newton AI Lab Assistant averages 5.0 from 2 ratings.

### Do Papers by ReadCube or Newton AI Lab Assistant have ads?

Neither Papers by ReadCube nor Newton AI Lab Assistant shows ads.

### Which is updated more often, Papers by ReadCube or Newton AI Lab Assistant?

Papers by ReadCube ships an update every 2 months, and Newton AI Lab Assistant every 2 weeks. Most recently, Papers by ReadCube was updated on November 1, 2026 and Newton AI Lab Assistant on October 31, 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.*