O'Reilly vs UniversalClass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O'Reilly
Access a vast library of tech books, videos, and courses to build in-demand skills. Stay current with the latest in programming, AI, cloud, and more. Learn on the go with offline downloads and progress syncing.
- Thousands of books, videos, and courses
- Content on programming, AI, cloud, DevOps, cybersecurity
- Audiobooks for multitasking
- Live events and on-demand training
- Playlists for content organization
- Offline downloads and progress syncing
- AI-powered search and overviews
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Build the skills you need for the job you have—or the one you want. With the O’Reilly app paired with a membership, you’ll get access to thousands of books, videos, and courses trusted by tech practitioners around the world. Whether you’re a developer, data professional, or technology leader, O’Reilly helps you stay ahead in a rapidly evolving industry. Here are just a few ways you can use the O’Reilly app to learn today’s most critical skills: • Explore the latest in programming, AI, cloud, DevOps, and cybersecurity, with content from the people actually putting the technology to work—plus in-depth content on leadership, soft skills, and much more. • Discover best-selling titles and early releases from leading publishers, all in one digital library built for technology professionals. • Listen to thousands of audiobooks to keep the learning going while you multitask. • Watch live events and training sessions, or dive into 5,000+ courses on-demand. • Use playlists to save and organize content you’re exploring, and share them with your friends and coworkers. • Learn on the go, anywhere, with downloadable content and progress syncing across devices. • Quickly find the resources that will help you solve the problems you encounter in your day-to-day work with AI-powered search, plus AI overviews (with citations) to get up to speed on the basics. Powerful tools to support your learning: • Recommendations based on your interests and history • Playlists to organize the content you want to learn • Deep search to find answers fast across 75K+ titles, 3.7K+ audiobooks, 30K+ hours of video, and much more • Highlights and notes to capture key ideas • Adjustable reading settings including font size and night mode • Playback speed controls for faster learning Get started with one of our most popular skills: • AI and machine learning • Software development and programming • Data engineering and data science • Cloud, DevOps, and infrastructure • Cybersecurity • Product management and leadership The O’Reilly app works best with a membership. Learn more at oreilly.com.
UniversalClass
Access a wide range of online courses to learn new skills, advance your career, or explore personal interests from your mobile device. Continue lessons on the go with a seamless experience, track your progress, and learn at your own pace.
- Access enrolled courses anywhere
- Seamless mobile learning experience
- Course materials and progress tracking
- Learn at your own pace
- Professional development courses
- Personal enrichment courses
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Take your education anywhere with the UniversalClass app. UniversalClass gives you access to a wide range of online courses designed to help you learn new skills, advance your career, or explore personal interests—all from your iPhone or iPad. With the UniversalClass app, you can: - Access your enrolled courses anytime, anywhere - Continue lessons on the go with a seamless mobile experience - Stay organized with course materials, progress tracking, and updates - Learn at your own pace, whether you're at home or on the move From professional development to personal enrichment, UniversalClass makes it easy to keep learning wherever life takes you. Note: A UniversalClass account is required to access course content.
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Verdict
The clearest difference is rating: O'Reilly at 4.7 against UniversalClass's 3.2. O'Reilly also leads on review sentiment (46% vs 20%) and ratings volume (34K vs 13). UniversalClass's advantage is iOS requirement (15.0 vs 18.5). On price, update cadence, ads and in-app purchases 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.
O'Reilly holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: O'Reilly has 34K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 46% of O'Reilly's written reviews are positive against 20% of UniversalClass's.
O'Reilly ships an update fortnightly, UniversalClass every 3 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.
| Parameter | O'Reilly | UniversalClass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (34K ratings) — better | 3.2 (13 ratings) |
| Positive reviews | 46.5% of reviews — better | 20.0% of reviews |
| Number of ratings | 34K — better | 13 |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 637 MB |
| Age rating | 4+ | 17+ |
| Developer | O'Reilly Media, Inc. | Universal Class, Inc. |
Customer experience
O'Reilly
UniversalClass
Bugs and requests
O'Reilly
Reported bugs
4 issues- Frequent crashes and freezes
- Unreliable downloads and offline access
- Login issues and loss of progress
- Inconsistent behavior across updates
Requested features
4 requests- Improved bookmarking and note-taking
- Customizable text formatting and layout
- Better search and content discovery
- Seamless sync across devices
UniversalClass
Not enough reviews yet to summarise bugs or requests.
In-app purchases
O'Reilly
No in-app purchases
UniversalClass
No in-app purchases
Questions
Is O'Reilly free?
Is UniversalClass free?
Which has better reviews, O'Reilly or UniversalClass?
Do O'Reilly or UniversalClass have ads?
Which is updated more often, O'Reilly or UniversalClass?
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