Orkov vs Research Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Orkov
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.
- 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
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ORKOV - THE SEARCH AUTHORITY ON "http://www.pubmed.gov" www.pubmed.gov (PubMed) Empowers you with instant access to critical and needed research information ‘Anywhere; and at ‘Anytime’ on demand 24 by 7. Search PubMed from your iPhone with Orkov's powerful and advanced search capability. All the options of PubMed's web pages are wrapped into a powerful iPhone app that is easy to use and navigate. Search journals and review abstracts. Bookmark, download and save PDFs of Full Text articles whenever available and email the abstracts, search results, full text and downloaded PDF articles with notes. FEATURES include the following: • Search PubMed (Basic and Advanced Searches) • Retrieve full text articles and PDFs from PubMed, PubMed Central and other sources when available. • Link to other full text article sources • Retain Search History • Save searches, abstracts and full text articles • Keep notes with your full text articles, PDF downloads and abstracts • Link to LoanSome Doc to borrow journals • Navigate lengthy full text articles quickly with our exclusive "Jump" button. Our ‘Jump’ button dynamically populates main sections of an XML based full text article • Zoom in on Figures • Find related articles (to multiple levels) • Find related articles by authors (to multiple levels) • Built-in browser (No need to leave or close Orkov) for viewing documents available through other services • Immediate, Complete and FREE two week instant access to all the features of Orkov
Research Notes
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.
- Hundreds of journal RSS feeds
- Subject category filtering
- PDF download functionality
- Text-to-speech for articles
- Favorite journals section
- New journal additions
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Research Notes app provides hundreds of journals RSS Feeds in single app Major Features -World renowned Publishers and their science journals RSS Feeds -Nature, Science, Cell, Trends, PLOS, BioRxiv and Oxford journals -Journals based on the their subject categories -Biology, Bioinformatics, Biotechnology, Cell and Molecular Biology, Chemistry, Genetics, Immunology, Microbiology, Oncology, Plant Biology, Virology/Pathology and Surgery -Blood and Journal of Biological Chemistry -Connect us and Social pages -PDF Box for PDF files to download -Hundreds of new journals added -In-App purchases -Add journals to favorite section -Other apps from us Note: If you want add any other journal to App, email us ===================== Subscription Benefits ===================== -PDF to Audio subscription is for people who need them scientific articles to download in PDF Box and which can be read as text to speech -You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • 6 months ($7.99) • 12 months ($11.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase Terms of use and Privacy policy: http://omeletteinc.com/privacy
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Orkov | Research Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 0.0% of reviews | 71.4% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 12 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Visual Soft Inc. | Omelette, Inc |
Customer experience
Orkov
Research Notes
In-app purchases
Orkov
No in-app purchases
Research Notes
- PDF to Audio for 6 months$7.496 Months
- PDF to Audio for 12 Months$11.991 Year
- Research Notes$4.99









