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DataCamp: Data Science & AI: what 85 low-star reviews complain about

We read 85 one-to-three-star reviews written between 2019-11-17 and 2026-08-19 and kept the ones that describe a specific unmet need. Grouped with reviews of other apps that say the same thing, they land in 6 repeated complaints. Store listing.

What reviewers complain about

• Not suitable for true beginners×2
• Web courses don't play on mobile browsers
• Watch-and-repeat insufficient for complex topics like nested subqueries
• Wasted time managing keyboard
• Videos don't retain playback position
• Variables referenced don't exist in tables
• Uses small portion of screen
• Unusable on both wifi and 4g
• Unclear what content is available offline
• Unclear exercise expectations

The opportunities these reviews point to

1. 0165Mobile learning app with iPad landscape keyboard support2 of 12
2. 0247Locked — subscribe to read this opportunity2 of 2
3. 0343Locked — subscribe to read this opportunity2 of 2
4. 0442Locked — subscribe to read this opportunity2 of 2
5. 0583Locked — subscribe to read this opportunity1 of 281
6. 0650Locked — subscribe to read this opportunity1 of 2

Score out of 100, then how many of the cluster's reviews are about this app out of its total. Category: Invoicing.