# CiNii Research, KAKEN, IRDB — Articles, Books, Projects > Free academic search engine for literature, research data, and projects. (iPhone/iPad app by FugaPiyo Inc..) - Source: https://appshunter.io/ios/app/cinii-research-kaken-irdb/id1618150440 (this page in markdown: same URL + `.md`) - Developer: [FugaPiyo Inc.](https://appshunter.io/developer/1497887610) - Category: Education, Reference - Price: Free - Age rating: 17+ - Requires: iOS 26.0 · 11 MB - Languages: American English, Japanese - Released: 2022-04-16 - Data updated: 2026-08-24 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/cinii-research-kaken-irdb/id1618150440/reviews.md ## What is CiNii Research, KAKEN, IRDB? It's a CiNii Research search app. All features are completely free to use. URL scheme: research:// Note: - This app uses CiNii APIs. - This app is run by an individual and has nothing to do with CiNii. - For inquiries, please use the form in this app. --- * About CiNii Research The National Institute of Informatics (NII) has been providing CiNii as a platform for researchers and librarians to search for bibliographic information. As the concept of open science becomes more widespread in recent years, however, other types of information as well as literature tend to be made public, including research data, project information, and other information related to research activities. In response to this trend, we launched CiNii Research. CiNii Research is a simple interface that allows you to easily cross-search not only literature, but also research data from external collaborating institutions and institutional repositories, and other sources including research project data on KAKEN. Quoted from: https://support.nii.ac.jp/en/cir/manual_outline * Incorporated Databases - Japan Link Center - Institutional Repository Database - The Japanese Periodicals Index - National Diet Library Digital Collections - Crossref - Ichushi Web - Nikkei BP Magazine Archive - Japanese Agricultural Sciences Index - IPS Digital Library - JSAI Archives - AIJ Archives - CiNii Articles - CiNii Books - CiNii Dissertations - DataCite - JDCat - National Institute for Japanese Language and Linguistics - The Informatics Research Data Repository - DBpedia - Rikkyo University Data Archive - Database of Grants-in-Aid for Scientific Research - Database of Grants-in-Aid for Scientific Research (Researchers) Quoted from: https://support.nii.ac.jp/en/cir/cir_db * CiNii CiNii is a bibliographic database service for material in Japanese academic libraries, especially focusing on Japanese works and English works published in Japan. The database was founded in April 2005 and is maintained by the National Institute of Informatics. The service searches from within the databases maintained by the NII itself [NII Electronic Library Service (NII-ELS) and Citation Database for Japanese Publications (CJP)], as well as the databases provided by the National Diet Library of Japan, institutional repositories, and other organizations. The database contains more than 22 million articles from more than 3,600 publications. A typical month (in 2012) saw more than 30 million accesses from 2.2 million unique visitors, and is the largest and most comprehensive database of its kind in Japan. Although the database is multidisciplinary, the largest portion of the queries it receives is in the humanities and social sciences field, perhaps because CiNii is the only database that covers Japanese scholarly works in this field (as opposed to the natural, formal, and medical sciences which benefit from other databases). Quoted from: https://en.wikipedia.org/wiki/CiNii ## Key features - Cross-search academic literature - Access research data - Find project information - Utilizes CiNii APIs - Free to use - Incorporates multiple databases ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/cinii-research-kaken-irdb/id1618150440/reviews.md ### 1/5 — 広告が…… *2026-08-15* こういう用途のアプリで、ワンアクションごとに全画面表示される（何秒も待たないとスキップもできない）広告が表示されるのはいかがなものかと思う。ブラウザ使った検索で充分です。 ## Frequently asked questions about CiNii Research, KAKEN, IRDB ### What is CiNii Research? CiNii Research is a search app that allows users to cross-search academic literature, research data, and project information from various databases. It aims to provide a simple interface for accessing a wide range of scholarly materials and research activities. ### Is CiNii Research free to use? Yes, all features of CiNii Research are completely free to use. The app is supported by advertisements, as indicated by its monetization model. ### What kind of information can I find with CiNii Research? You can find academic literature, research data from external collaborating institutions, institutional repositories, and research project data, including information from KAKEN (Database of Grants-in-Aid for Scientific Research). ### Does CiNii Research have ads? Yes, CiNii Research contains advertisements. This is how the app is able to offer all its features for free to users. ### What databases are incorporated into CiNii Research? CiNii Research incorporates a wide array of databases, including CiNii Articles, CiNii Books, CiNii Dissertations, KAKEN, Japan Link Center, Institutional Repository Database, National Diet Library Digital Collections, Crossref, and many more. ### What is the age rating for CiNii Research? CiNii Research has an age rating of 17+, which is typical for applications that provide access to a broad range of academic and research content. ### On which devices can I use CiNii Research? CiNii Research is available for use on iPhones and iPads, providing access to its academic search capabilities on Apple mobile devices. ### How often is CiNii Research updated? The app was last updated on October 27, 2025, to version 1.0.8. This indicates a relatively recent update, suggesting ongoing maintenance and potential improvements. ## Version history (last 5 releases) ### 1.0.8 — 2025-10-27 - Bug fixes and stability improvements ### 1.0.7 — 2024-02-12 - Bug fixes and stability improvements ### 1.0.6 — 2023-02-28 - Bug fixes and stability improvements ### 1.0.5 — 2022-12-19 - Bug fixes and stability improvements ### 1.0.4 — 2022-10-31 - Bug fixes and stability improvements ## Apps similar to CiNii Research, KAKEN, IRDB | App | Rating | Price | Category | | --- | --- | --- | --- | | [読書管理CatBook-積読、図書館記録アプリ](https://appshunter.io/ios/app/catbook/id1565953416) | — | Free | Education | | [entrepreneur Media - entre](https://appshunter.io/ios/app/entrepreneur-media-entre/id6504269790) | — | Free | Education | | [Essay Coach](https://appshunter.io/ios/app/essay-coach/id6466455974) | — | Free | Education | | [Lib arXiv](https://appshunter.io/ios/app/lib-arxiv/id1209942239) | 4.2 (11) | Free | Education | | [WAKABA放大](https://appshunter.io/ios/app/wakaba/id1634516096) | — | Free | Education | | [PaperCrush](https://appshunter.io/ios/app/papercrush/id6745439518) | — | Free | Education | ## More apps by FugaPiyo Inc. - [CiNii Articles, Books](https://appshunter.io/ios/app/cinii-articles-books/id1512642261) - [PubMed PMC Bookshelf Search](https://appshunter.io/ios/app/pubmed-pmc-bookshelf-search/id1523851247) - [Birthday List - Alarm Reminder](https://appshunter.io/ios/app/birthday-list-alarm-reminder/id1530955894) - [Shopping List Widget Reminders](https://appshunter.io/ios/app/shopping-list-widget-reminders/id1534180486) - [To-Do List Widget Reminders](https://appshunter.io/ios/app/to-do-list-widget-reminders/id1537247512) - [Widget Notes Home Lock Screen](https://appshunter.io/ios/app/widget-notes-home-lock-screen/id1540899823) All apps by FugaPiyo Inc.: https://appshunter.io/developer/1497887610 ## Related topics [irdb](https://appshunter.io/ios/topics/irdb) · [article research](https://appshunter.io/ios/topics/article-research) · [glooko research](https://appshunter.io/ios/topics/glooko-research) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*