Comparison

Orkov vs Research Notes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

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.

Highlights
  • Hundreds of journal RSS feeds
  • Subject category filtering
  • PDF download functionality
  • Text-to-speech for articles
  • Favorite journals section
  • New journal additions
Features
Read full description

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

Orkov3 screens
Research Notes4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard7 real differences · 3 level
Orkov versus Research Notes: the parameters behind the verdict, then further details
ParameterOrkovResearch Notes
PriceFreeFree
Rating5.0 (1 ratings) — better4.0 (4 ratings)
Positive reviews0.0% of reviews71.4% of reviews — better
Number of ratings14 — better
Update frequencyEvery 12 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size2 MB26 MB
Age rating4+4+
DeveloperVisual Soft Inc.Omelette, Inc

Customer experience

Orkov

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Research Notes

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

In-app purchases

None

Orkov

No in-app purchases

3 purchases

Research Notes

Subscriptions2
  • PDF to Audio for 6 months$7.496 Months
  • PDF to Audio for 12 Months$11.991 Year
One-time1
  • Research Notes$4.99

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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