# PaperDoc vs Persimmon

The clearest difference is in-app purchases: Persimmon at none against PaperDoc's 2. PaperDoc's advantage is iOS requirement (15.1 vs 18.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PaperDoc sells 2 in-app purchases, starting at $12.99 per month. Persimmon asks for nothing beyond the download.

PaperDoc ships an update every 5 weeks, Persimmon every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | PaperDoc | Persimmon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/persimmon-research-simplified/id6747952930/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 42 MB | 23 MB |
| Requires iOS | **15.1** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [PaperDoc](https://appshunter.io/developer/1572445836) | [Momenta Lab LLC](https://appshunter.io/developer/1615879512) |

## What reviewers say

### PaperDoc

[App page](https://appshunter.io/ios/app/paperdoc/id1572445504)

This app provides healthcare professionals with AI-powered summaries of scientific articles, saving time and keeping them updated on the latest advancements in their field. It offers personalized selections based on specialty and category for efficient knowledge enhancement.

**Highlights:** Personalized scientific article selection, AI-generated article summaries, Time-saving content analysis, Updates tailored to specialty, Efficient knowledge enhancement

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro monthly | $12.99 | per month |
| Pro yearly | $129.99 | per year |


### Persimmon

[App page](https://appshunter.io/ios/app/persimmon-research-simplified/id6747952930)

This app simplifies complex scientific research papers from arXiv and SocArXiv using AI. It offers customizable summaries tailored to your expertise level and allows you to search, save, and get daily updates on new publications. You can also use it as a basic preprint browser without AI.

**Highlights:** AI-powered paper summaries, Customizable AI models and expertise levels, Search arXiv and SocArXiv, Save papers for offline access, Daily updates and notifications, Privacy-focused, no data collection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PaperDoc free?

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

### Is Persimmon free?

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

### Do PaperDoc or Persimmon have ads?

Neither PaperDoc nor Persimmon shows ads.

### Which is updated more often, PaperDoc or Persimmon?

PaperDoc ships an update every 5 weeks, and Persimmon every 3 weeks. Most recently, PaperDoc was updated on October 24, 2026 and Persimmon on October 24, 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.*