# Orkov vs Research Notes

The clearest difference is review sentiment: Research Notes at 71% against Orkov's 0%. Research Notes also leads on update cadence (weekly vs every 12 months) and ratings volume (4 vs 1). Orkov's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 3). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Research Notes sells 3 in-app purchases, starting at $7.49 per 6 months. Orkov asks for nothing beyond the download.

Orkov holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 0% of Orkov's written reviews are positive against 71% of Research Notes's, so the app with the better star average is not the one people write more warmly about.

Orkov ships an update every 12 months, Research Notes weekly. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Orkov | Research Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/orkov/id336927484/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/research-notes/id1472037622/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | **71.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 26 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Visual Soft Inc.](https://appshunter.io/developer/336927487) | [Omelette, Inc](https://appshunter.io/developer/984352813) |

## What reviewers say

### Orkov

[App page](https://appshunter.io/ios/app/orkov/id336927484)

Access and search critical research information from PubMed on your iPhone. This app allows you to search journals, save articles and PDFs, and add notes. It provides a powerful and easy-to-navigate interface for medical research on the go.

**Highlights:** Search PubMed (Basic & Advanced), Retrieve full text articles & PDFs, Save searches, abstracts & articles, Add notes to saved content, Built-in browser, Navigate lengthy articles with 'Jump' button, Find related articles

**In-app purchases:** none


### Research Notes

[App page](https://appshunter.io/ios/app/research-notes/id1472037622)

Access RSS feeds from hundreds of scientific journals across various subject categories. Download PDFs and utilize a text-to-speech feature for articles. Organize your favorite journals and discover new ones.

**Highlights:** Hundreds of journal RSS feeds, Subject category filtering, PDF download functionality, Text-to-speech for articles, Favorite journals section, New journal additions

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF to Audio for 6 months | $7.49 | per 6 months |
| PDF to Audio for 12 Months | $11.99 | per year |
| Research Notes | $4.99 | one-time |


## Frequently asked questions

### Is Orkov free?

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

### Is Research Notes free?

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

### Which has better reviews, Orkov or Research Notes?

Orkov is rated higher. Orkov averages 5.0 out of 5 from 1 ratings, while Research Notes averages 4.0 from 4 ratings.

### Do Orkov or Research Notes have ads?

Research Notes shows ads; Orkov does not.

### Which is updated more often, Orkov or Research Notes?

Orkov ships an update every 12 months, and Research Notes weekly. Most recently, Orkov was updated on October 7, 2026 and Research Notes on October 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.*