Police Tutorial vs CiNii Research, KAKEN, IRDB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Police Tutorial
Access police course materials on your iOS device. Download content for offline review to help you become a police officer or advance your career in New York State.
- Downloadable course materials
- Offline access
- Police career advancement
- New York State specific content
- iOS device compatibility
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Police Tutorial Service (PTS) helps law enforcement candidates prepare for civil service and promotional exams with focused course content, practice material, and structured study tools. Use PTS to: Access your assigned course materials from your account Study session content and review questions in an organized format Stream lesson audio and video to learn while commuting or between shifts Track progress across sessions and continue where you left off PTS is designed for practical, day-to-day exam preparation with a clean mobile experience and reliable access to your learning content.
CiNii Research, KAKEN, IRDB
This app provides a comprehensive search interface for academic literature, research data, and project information. It aggregates data from numerous databases, offering a free and unified platform for researchers and librarians. Access a vast collection of scholarly materials and research activities.
- Cross-search academic literature
- Access research data
- Find project information
- Utilizes CiNii APIs
- Free to use
- Incorporates multiple databases
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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
Screenshots
Verdict
The clearest difference is review sentiment: Police Tutorial at 50% against CiNii Research, KAKEN, IRDB's 0%. Police Tutorial also leads on ads (none vs shown) and update cadence (monthly vs every 3 months). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Police Tutorial ships an update monthly, CiNii Research, KAKEN, IRDB every 3 months. The most recent releases landed on July 23, 2026 and September 6, 2026 respectively.
| Parameter | Police Tutorial | CiNii Research, KAKEN, IRDB |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) — better | — |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 46 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Police Tutorial Service | FugaPiyo Inc. |
Customer experience
Police Tutorial
CiNii Research, KAKEN, IRDB
In-app purchases
Police Tutorial
No in-app purchases
CiNii Research, KAKEN, IRDB
No in-app purchases
Questions
Is Police Tutorial free?
Is CiNii Research, KAKEN, IRDB free?
Do Police Tutorial or CiNii Research, KAKEN, IRDB have ads?
Which is updated more often, Police Tutorial or CiNii Research, KAKEN, IRDB?
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