--- title: "Open Access Helper - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Open Access Helper: Effortless Access to Scholarly Articles Unlock Open Access Easily find legal, free-to-read versions of paywalled scientific articles. Open Access Helper uses the trusted APIs from" --- # Open Access Helper — United States > skip the academic paywall ![Open Access Helper App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/9b/21/78/9b2178c0-c0a9-b271-31f4-98d1b549a056/AppIcon-0-0-1x_U007emarketing-0-8-0-sRGB-85-220.png/434x0w.png) **Developer:** [Claus Wolf](https://apptail.io/developer/claus-wolf-KcPb) (Germany) **Category:** Education **Rating:** 4.0/5 (4 ratings) **Price:** Free **Bundle ID:** net.otzberg.oah.oah **Store:** Apple App Store **Country:** United States **Version:** 2026.5 (released 2026-05-15) **Original Release:** 2021-11-05 **Languages:** English, German **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1592826205) **AppTail Page:** [https://apptail.io/app/open-access-helper-RIUd/united-states](https://apptail.io/app/open-access-helper-RIUd/united-states) ## Open Access Helper Description Open Access Helper: Effortless Access to Scholarly Articles Unlock Open Access Easily find legal, free-to-read versions of paywalled scientific articles. Open Access Helper uses the trusted APIs from unpaywall.org and core.ac.uk to locate open access copies, making research more accessible for students, researchers, and curious minds. How It Works When you view a research article, the extension detects its DOI (Digital Object Identifier) and checks for an available open access version. Simply click the Open Access Helper badge to access the document! As you hover over the badge, it will indicate whether you’ll be accessing the “Published Version,” “Accepted Version,” or “Submitted Version.” EZProxy or OpenAthens Made Simple If your university library uses EZProxy or OpenAthens for off-campus access, this extension makes it seamless to connect. Just set your institution’s domain (e.g., harvard.edu), and with one click, you can proxy the current page through your library’s server. 100% Legal and Privacy-Respecting Every link provided leads to officially open-access or legally archived copies of research articles. Plus, Open Access Helper doesn’t collect personal data—just anonymous usage stats to improve functionality. Open Source & Developer-Friendly This is a passion project—check out the code, share feedback, or report bugs. Your contributions and ideas are always welcome! Get started today—make research easier and more accessible with Open Access Helper! ## Open Access Helper Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4e/d7/c8/4ed7c812-2e8b-a2c8-5daf-bffcf21c62f2/7a2552b3-5f52-434e-942c-682e7dc12dee_20230728_appstore_blue_ipad_2nd.png/2732x2048.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/03/3c/b6/033cb6af-387d-97bf-0982-d0f084bbcb62/895a6e36-6c7d-44cd-9c1d-241f9b82ed36_appstore_2_ipad_2nd.png/2732x2048.png) ## Open Access Helper Rating Breakdown in United States - 5 stars: 3 (75%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 1 (25%) ## Open Access Helper Available In - [United States](https://apptail.io/app/open-access-helper-RIUd/united-states) - [Germany](https://apptail.io/app/open-access-helper-RIUd/germany) - [United Kingdom](https://apptail.io/app/open-access-helper-RIUd/united-kingdom) - [Hungary](https://apptail.io/app/open-access-helper-RIUd/hungary) - [Switzerland](https://apptail.io/app/open-access-helper-RIUd/switzerland) - [China](https://apptail.io/app/open-access-helper-RIUd/china) - [Brazil](https://apptail.io/app/open-access-helper-RIUd/brazil) - [Belarus](https://apptail.io/app/open-access-helper-RIUd/belarus) - [Canada](https://apptail.io/app/open-access-helper-RIUd/canada) - [Chile](https://apptail.io/app/open-access-helper-RIUd/chile) - [Colombia](https://apptail.io/app/open-access-helper-RIUd/colombia) - [Czechia](https://apptail.io/app/open-access-helper-RIUd/czechia) - [Denmark](https://apptail.io/app/open-access-helper-RIUd/denmark) - [Dominican Republic](https://apptail.io/app/open-access-helper-RIUd/dominican-republic) - [Algeria](https://apptail.io/app/open-access-helper-RIUd/algeria) - [Egypt](https://apptail.io/app/open-access-helper-RIUd/egypt) - [Spain](https://apptail.io/app/open-access-helper-RIUd/spain) - [Finland](https://apptail.io/app/open-access-helper-RIUd/finland) - [France](https://apptail.io/app/open-access-helper-RIUd/france) - [Greece](https://apptail.io/app/open-access-helper-RIUd/greece) - [Hong Kong SAR China](https://apptail.io/app/open-access-helper-RIUd/hong-kong) - [Indonesia](https://apptail.io/app/open-access-helper-RIUd/indonesia) - [Ireland](https://apptail.io/app/open-access-helper-RIUd/ireland) - [Israel](https://apptail.io/app/open-access-helper-RIUd/israel) - [India](https://apptail.io/app/open-access-helper-RIUd/india) - [Italy](https://apptail.io/app/open-access-helper-RIUd/italy) - [Japan](https://apptail.io/app/open-access-helper-RIUd/japan) - [South Korea](https://apptail.io/app/open-access-helper-RIUd/south-korea) - [Kuwait](https://apptail.io/app/open-access-helper-RIUd/kuwait) - [Kazakhstan](https://apptail.io/app/open-access-helper-RIUd/kazakhstan) - [Lebanon](https://apptail.io/app/open-access-helper-RIUd/lebanon) - [Mexico](https://apptail.io/app/open-access-helper-RIUd/mexico) - [Malaysia](https://apptail.io/app/open-access-helper-RIUd/malaysia) - [Nigeria](https://apptail.io/app/open-access-helper-RIUd/nigeria) - [Netherlands](https://apptail.io/app/open-access-helper-RIUd/netherlands) - [Norway](https://apptail.io/app/open-access-helper-RIUd/norway) - [New Zealand](https://apptail.io/app/open-access-helper-RIUd/new-zealand) - [Peru](https://apptail.io/app/open-access-helper-RIUd/peru) - [Philippines](https://apptail.io/app/open-access-helper-RIUd/philippines) - [Pakistan](https://apptail.io/app/open-access-helper-RIUd/pakistan) - [Poland](https://apptail.io/app/open-access-helper-RIUd/poland) - [Portugal](https://apptail.io/app/open-access-helper-RIUd/portugal) - [Romania](https://apptail.io/app/open-access-helper-RIUd/romania) - [Russia](https://apptail.io/app/open-access-helper-RIUd/russia) - [Saudi Arabia](https://apptail.io/app/open-access-helper-RIUd/saudi-arabia) - [Sweden](https://apptail.io/app/open-access-helper-RIUd/sweden) - [Singapore](https://apptail.io/app/open-access-helper-RIUd/singapore) - [Slovakia](https://apptail.io/app/open-access-helper-RIUd/slovakia) - [Thailand](https://apptail.io/app/open-access-helper-RIUd/thailand) - [Türkiye](https://apptail.io/app/open-access-helper-RIUd/turkey) - [Taiwan](https://apptail.io/app/open-access-helper-RIUd/taiwan) - [Ukraine](https://apptail.io/app/open-access-helper-RIUd/ukraine) - [Vietnam](https://apptail.io/app/open-access-helper-RIUd/vietnam) - [United Arab Emirates](https://apptail.io/app/open-access-helper-RIUd/united-arab-emirates) - [South Africa](https://apptail.io/app/open-access-helper-RIUd/south-africa) - [Argentina](https://apptail.io/app/open-access-helper-RIUd/argentina) - [Austria](https://apptail.io/app/open-access-helper-RIUd/austria) - [Australia](https://apptail.io/app/open-access-helper-RIUd/australia) - [Azerbaijan](https://apptail.io/app/open-access-helper-RIUd/azerbaijan) - [Belgium](https://apptail.io/app/open-access-helper-RIUd/belgium) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*