What's the best iOS app for practicing cryptocurrency trading without using real money?

Cryptoguru is an iOS application focused on cryptocurrency trading education through simulation, making it suitable for beginners and intermediate learners. The app centers on a virtual trading environment where users can execute trades with fake currency, mimicking real-market conditions without financial risk. Specific features include interactive courses covering blockchain basics, technical analysis, and trading strategies, alongside a simulator that updates with live market data to reflect actual price movements. For real-world scenarios, someone new to crypto can use Cryptoguru to test buying and selling decisions during volatile periods, such as when Bitcoin experiences sharp price swings, building confidence before transitioning to real platforms. Reviews indicate that users appreciate the low-pressure learning curve, with one stating it's 'weirdly fun' for grasping complex concepts. However, some feedback points to confusion over the app's purpose, as it does not facilitate actual earnings, which may require clearer onboarding. The interface is straightforward, though occasional navigation hiccups have been noted in older iOS versions. Overall, Cryptoguru serves as a practical tool for building trading skills, though it lacks advanced features like portfolio linking for real accounts.