Cosmo vs DeepLearning.AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cosmo
This app offers hands-on, practice-based lessons to build in-demand skills in areas like GenAI, business, and tech. It acts as a personal AI tutor, adapting to your learning pace and providing instant help on any topic. Earn shareable certificates and skill badges to advance your career.
- Personalized AI tutor
- Hands-on, practice-based lessons
- Learn GenAI, business, tech, and more
- Earn skill badges and certificates
- Instant help on any topic
- 200+ career-building skills
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Build real skills in just minutes a day. No videos. Just doing. Cosmo is your personal AI tutor, always ready with hands-on lessons that adapt to you. Whether you're between classes, commuting, or on a break, you’ll make real progress in GenAI, business, tech, and more. Built by CodeSignal, the AI platform trusted by over 3,000 top employers for hiring, including Google, Meta, Zoom, Netflix, TikTok, and Anthropic. Loved by over 1 million learners who build and prove their skills with CodeSignal. Why Cosmo • Cosmo, your AI tutor, adapts to you and guides you on your journey so you can learn faster • Fun, practice-based lessons that keep you engaged • Master the most in-demand skills to grow your career • Earn shareable certificates and skill badges • Take full courses or get instant help on any topic Every course is free. Learn GenAI, business, marketing, sales, finance, accounting, product management, project management, leadership, communication, emotional intelligence, Python, JavaScript, Go, Swift, Kotlin, Rust, web development, cloud, SQL, data science, analytics, machine learning, data engineering, personal finance, focus, decision making, critical thinking, public speaking, habit formation, and more. Explore 200+ career-building skills • GenAI: Practice prompts and apply ChatGPT at work • Finance: Understand money, markets, and valuation • Marketing: Learn digital ads, branding, SEO, and strategy • Coding: Learn Python, JavaScript, and more through practice • Data: Build skills in SQL, machine learning, and analytics • Leadership: Grow communication and strategic thinking • Personal Growth: Build habits, confidence, and clarity • Startups: Learn how to launch your idea into the world If you like Cosmo, try Cosmo+ to learn faster with unlimited energy. Learn on the web at: https://codesignal.com/learn Send feedback to: support@codesignal.com Privacy Policy: https://codesignal.com/privacy Terms of Use: https://codesignal.com/terms/
DeepLearning.AI
Master AI engineering skills with expert-curated content. Learn foundational concepts and stay updated with the latest AI developments through on-demand lessons and curated reads. Earn certificates to showcase job-ready skills.
- Expert-curated AI learning paths
- On-demand video lessons
- Offline course access
- Curated AI news and insights
- Progress tracking
- Job-ready skill certificates
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Build AI engineering skills with DeepLearning.AI, the AI education company founded by Andrew Ng. We help software engineers, AI/ML engineers, and data scientists build the depth to solve hard problems and stay relevant. The hard part is not finding AI content. It is knowing what to trust when there is far too much of it. At DeepLearning.AI, working practitioners decide what is worth your attention and filter for what is true and useful. You learn foundational skills you can carry to any tool, and the judgment to evaluate any tool on its merits. More than 10 million learners have started here, including engineers at the companies building frontier AI. Staying current with AI is a practice, not a project you finish, and it should not stop when you leave your desk. Turn a commute or a coffee break into progress. Stream lessons on demand or download courses for offline access. Follow the field with two reads inside the app. The Batch brings you DeepLearning.AI's perspective, including Andrew Ng's take on what matters. Data Points gives you a fast scan of the week's most important developments in a few minutes. Learn the way that fits how you work. Watch video lessons, read at your own pace, and track your progress. Earn certificates that signal real, job-ready skills. Download the app and build the AI engineering skills to stay ahead. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.deeplearning.ai/privacy/
Screenshots
Verdict
Cosmo and DeepLearning.AI both sit at 4.8 stars, but that hides the real split: 84% of Cosmo's written reviews are positive against 33% of DeepLearning.AI's. Cosmo also leads on ratings volume (858 vs 49). DeepLearning.AI's advantage is update cadence (weekly vs fortnightly). On price, rating, 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. Cosmo sells 4 in-app purchases, starting at $12.99 per month and DeepLearning.AI sells 2 in-app purchases, starting at $41.99 per month. Whichever you choose, the download price is not the number that matters.
DeepLearning.AI holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Cosmo has 858 ratings behind it against 49, so its average is the more settled of the two. Written reviews complicate that: 84% of Cosmo's written reviews are positive against 33% of DeepLearning.AI's, so the app with the better star average is not the one people write more warmly about.
Cosmo ships an update fortnightly, DeepLearning.AI weekly. Both last shipped on October 31, 2026.
| Parameter | Cosmo | DeepLearning.AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (858 ratings) | 5.0 (49 ratings) — better |
| Positive reviews | 84.1% of reviews — better | 33.3% of reviews |
| Number of ratings | 858 — better | 49 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 95 MB | 53 MB |
| Age rating | 4+ | 12+ |
| Developer | CodeSignal | DeepLearning.AI Corp. |
Customer experience
Cosmo
DeepLearning.AI
Bugs and requests
Cosmo
Requested features
1 request- Ability to upgrade/customize Cosmo's outfit and spaceship
DeepLearning.AI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cosmo
- Unlimited Access7 Days trial$12.991 Month
- Unlimited Access7 Days trial$24.991 Month
- Unlimited Access7 Days trial$78.001 Year
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- Unlimited Access7 Days trial$149.991 Year
DeepLearning.AI
- Pro Monthly7 Days trial$41.991 Month
- Pro Yearly7 Days trial$419.991 Year








