R Discovery vs 4択ITパスポート
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
R Discovery
Access and discover over 300 million research papers with AI-powered tools. Understand findings, chat with PDFs, and organize your academic library. Stay current in your field with personalized feeds and alerts.
- Discover 300M+ research papers
- AI-powered research workflows
- Chat with PDFs
- Listen to research papers
- Personalized research feeds
- Organize academic library
- Translate research papers
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R Discovery is your #1 place to discover research literature, stay current, and read what matters faster. Built for students, researchers, clinicians, educators, and academics, R Discovery helps you find relevant papers without spending hours searching across scattered sources. With research-grade AI workflows, R Discovery accelerates every step of your literature journey: discover papers, understand key findings, chat with PDFs, listen to research, translate papers, and build a personalized academic library around your interests. We search, curate, summarize, and organize the literature so you can spend more time on meaningful research and more time with the people you love. R Discovery gives you access to: • 150M+ journal articles • 78M+ open access papers • 10M+ conference documents • 5M+ preprints • 7.5M+ patents • 8M+ summaries and highlights • 9.5M+ research topics • 14M+ authors • 64K+ journals • 120K+ universities and institutions Why researchers use R Discovery: • Personalized research feeds based on your interests • Fast literature search for papers, journals, authors, topics, and institutions • Reliable, clean research database built to reduce duplication and low-quality content • Open access discovery so you can quickly find papers you can read • Full-text access with institutional login through GetFTR and LibKey integrations • Alerts for newly published papers in your field • Summaries and highlights to assess relevance faster • Bookmarks and reading lists to organize your library Upgrade to R Discovery Prime to accelerate your research further with unlimited access for research-grade AI workflows • Ask R Discovery for reference-backed answers from research papers • Chat with PDFs and get instant answers from full papers • Listen to papers with audio streaming for research on the go • Translate research papers into your preferred language • Sync your saved papers with Zotero and Mendeley R Discovery partners with leading global publishers, societies, and research platforms including Wiley, IOP Publishing, Springer Nature, Sage, Taylor & Francis, Hindawi, NEJM, Emerald Publishing, Duke University Press, IntechOpen, AIAA, Karger, Underline.io, J-STAGE, and more. Join 3M+ academics on R Discovery, the highest rated app in this space with a 4.6+ App Store rating. Free to use, or upgrade to R Discovery Prime for unlimited premium access. Get it now! Privacy Policy: https://cactusglobal.com/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
4択ITパスポート
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こんにちは、理科子です! 「Rikako IT」は、ITパスポート試験の合格を、すきま時間でめざせる4択問題集アプリです。 通勤・通学のちょっとした時間や、寝る前の数分。1問ずつコツコツ解いていくうちに、いつの間にか力がついていきます。わたしと一緒に、合格まで進んでいきましょう! ■ こんな方におすすめです ・これからITパスポートの勉強を始める方 ・すきま時間で効率よく対策したい方 ・参考書だと続かなかった方 ■ 特長 ・4択形式でサクサク解ける問題集 ・一問ごとにわかりやすい解説つき ・分野(ストラテジ/マネジメント/テクノロジ)から選んで学習 ・わからないところはAIに質問できる ・学習の記録が残るので、続けるほど手ごたえを実感 むずかしく考えなくて大丈夫です。まずは1問、気軽に解いてみてください。 あなたの「合格したい」を、理科子が応援します!
Screenshots
Verdict
The clearest difference is in-app purchases: 4択ITパスポート at none against R Discovery's 6. R Discovery's advantage is device support (3 vs 1) and iOS requirement (15 vs 17.0). On price, update cadence and ads 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. R Discovery sells 6 in-app purchases, starting at $11.99 per month. 4択ITパスポート asks for nothing beyond the download.
R Discovery ships an update monthly, 4択ITパスポート every 3 weeks. The most recent releases landed on November 3, 2026 and October 4, 2026 respectively.
| Parameter | R Discovery | 4択ITパスポート |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (926 ratings) — better | — |
| Positive reviews | 57.8% of reviews | — |
| Number of ratings | 926 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15 — better | 17.0 |
| Further details — not scored | ||
| Size | 56 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | CACTUS COMMUNICATIONS SERVICES PTE. LTD | junpei ono |
Bugs and requests
R Discovery
Reported bugs
4 issues- Home screen takes a long time to load
- Audio translation feature doesn't work
- Buttons are extremely slow
- Switching between dark and light mode is glitchy
Requested features
5 requests- Add option to view author information in preview
- Enable screen rotation for iPad users
- Add more advanced search functionality
- Allow canceling of export in progress
- Improve integration with Zotero
4択ITパスポート
Not enough reviews yet to summarise bugs or requests.
In-app purchases
R Discovery
- Monthly$11.991 Month
- Monthly$24.991 Month
- Monthly$25.001 Month
Show 3 moreShow fewer
- Yearly$69.001 Year
- Yearly$139.991 Year
- Yearly$143.991 Year
4択ITパスポート
No in-app purchases









